root/sys/dev/pci/drm/radeon/radeon_atombios.c
/*
 * Copyright 2007-8 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Dave Airlie
 *          Alex Deucher
 */

#include <linux/pci.h>

#include <drm/drm_device.h>
#include <drm/drm_edid.h>
#include <drm/radeon_drm.h>

#include "radeon.h"

#include "atom.h"
#include "atom-bits.h"
#include "radeon_asic.h"
#include "radeon_atombios.h"
#include "radeon_legacy_encoders.h"

union atom_supported_devices {
        struct _ATOM_SUPPORTED_DEVICES_INFO info;
        struct _ATOM_SUPPORTED_DEVICES_INFO_2 info_2;
        struct _ATOM_SUPPORTED_DEVICES_INFO_2d1 info_2d1;
};

static void radeon_lookup_i2c_gpio_quirks(struct radeon_device *rdev,
                                          ATOM_GPIO_I2C_ASSIGMENT *gpio,
                                          u8 index)
{
        /* r4xx mask is technically not used by the hw, so patch in the legacy mask bits */
        if ((rdev->family == CHIP_R420) ||
            (rdev->family == CHIP_R423) ||
            (rdev->family == CHIP_RV410)) {
                if ((le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x0018) ||
                    (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x0019) ||
                    (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x001a)) {
                        gpio->ucClkMaskShift = 0x19;
                        gpio->ucDataMaskShift = 0x18;
                }
        }

        /* some evergreen boards have bad data for this entry */
        if (ASIC_IS_DCE4(rdev)) {
                if ((index == 7) &&
                    (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x1936) &&
                    (gpio->sucI2cId.ucAccess == 0)) {
                        gpio->sucI2cId.ucAccess = 0x97;
                        gpio->ucDataMaskShift = 8;
                        gpio->ucDataEnShift = 8;
                        gpio->ucDataY_Shift = 8;
                        gpio->ucDataA_Shift = 8;
                }
        }

        /* some DCE3 boards have bad data for this entry */
        if (ASIC_IS_DCE3(rdev)) {
                if ((index == 4) &&
                    (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x1fda) &&
                    (gpio->sucI2cId.ucAccess == 0x94))
                        gpio->sucI2cId.ucAccess = 0x14;
        }
}

static struct radeon_i2c_bus_rec radeon_get_bus_rec_for_i2c_gpio(ATOM_GPIO_I2C_ASSIGMENT *gpio)
{
        struct radeon_i2c_bus_rec i2c;

        memset(&i2c, 0, sizeof(struct radeon_i2c_bus_rec));

        i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex) * 4;
        i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex) * 4;
        i2c.en_clk_reg = le16_to_cpu(gpio->usClkEnRegisterIndex) * 4;
        i2c.en_data_reg = le16_to_cpu(gpio->usDataEnRegisterIndex) * 4;
        i2c.y_clk_reg = le16_to_cpu(gpio->usClkY_RegisterIndex) * 4;
        i2c.y_data_reg = le16_to_cpu(gpio->usDataY_RegisterIndex) * 4;
        i2c.a_clk_reg = le16_to_cpu(gpio->usClkA_RegisterIndex) * 4;
        i2c.a_data_reg = le16_to_cpu(gpio->usDataA_RegisterIndex) * 4;
        i2c.mask_clk_mask = (1 << gpio->ucClkMaskShift);
        i2c.mask_data_mask = (1 << gpio->ucDataMaskShift);
        i2c.en_clk_mask = (1 << gpio->ucClkEnShift);
        i2c.en_data_mask = (1 << gpio->ucDataEnShift);
        i2c.y_clk_mask = (1 << gpio->ucClkY_Shift);
        i2c.y_data_mask = (1 << gpio->ucDataY_Shift);
        i2c.a_clk_mask = (1 << gpio->ucClkA_Shift);
        i2c.a_data_mask = (1 << gpio->ucDataA_Shift);

        if (gpio->sucI2cId.sbfAccess.bfHW_Capable)
                i2c.hw_capable = true;
        else
                i2c.hw_capable = false;

        if (gpio->sucI2cId.ucAccess == 0xa0)
                i2c.mm_i2c = true;
        else
                i2c.mm_i2c = false;

        i2c.i2c_id = gpio->sucI2cId.ucAccess;

        if (i2c.mask_clk_reg)
                i2c.valid = true;
        else
                i2c.valid = false;

        return i2c;
}

static struct radeon_i2c_bus_rec radeon_lookup_i2c_gpio(struct radeon_device *rdev,
                                                               uint8_t id)
{
        struct atom_context *ctx = rdev->mode_info.atom_context;
        ATOM_GPIO_I2C_ASSIGMENT *gpio;
        struct radeon_i2c_bus_rec i2c;
        int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
        struct _ATOM_GPIO_I2C_INFO *i2c_info;
        uint16_t data_offset, size;
        int i, num_indices;

        memset(&i2c, 0, sizeof(struct radeon_i2c_bus_rec));
        i2c.valid = false;

        if (atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
                i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);

                num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                        sizeof(ATOM_GPIO_I2C_ASSIGMENT);

                gpio = &i2c_info->asGPIO_Info[0];
                for (i = 0; i < num_indices; i++) {

                        radeon_lookup_i2c_gpio_quirks(rdev, gpio, i);

                        if (gpio->sucI2cId.ucAccess == id) {
                                i2c = radeon_get_bus_rec_for_i2c_gpio(gpio);
                                break;
                        }
                        gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
                                ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
                }
        }

        return i2c;
}

void radeon_atombios_i2c_init(struct radeon_device *rdev)
{
        struct atom_context *ctx = rdev->mode_info.atom_context;
        ATOM_GPIO_I2C_ASSIGMENT *gpio;
        struct radeon_i2c_bus_rec i2c;
        int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
        struct _ATOM_GPIO_I2C_INFO *i2c_info;
        uint16_t data_offset, size;
        int i, num_indices;
        char stmp[32];

        if (atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
                i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);

                num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                        sizeof(ATOM_GPIO_I2C_ASSIGMENT);

                gpio = &i2c_info->asGPIO_Info[0];
                for (i = 0; i < num_indices; i++) {
                        radeon_lookup_i2c_gpio_quirks(rdev, gpio, i);

                        i2c = radeon_get_bus_rec_for_i2c_gpio(gpio);

                        if (i2c.valid) {
                                snprintf(stmp, sizeof(stmp), "0x%x", i2c.i2c_id);
                                rdev->i2c_bus[i] = radeon_i2c_create(rdev_to_drm(rdev), &i2c, stmp);
                        }
                        gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
                                ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
                }
        }
}

struct radeon_gpio_rec radeon_atombios_lookup_gpio(struct radeon_device *rdev,
                                                   u8 id)
{
        struct atom_context *ctx = rdev->mode_info.atom_context;
        struct radeon_gpio_rec gpio;
        int index = GetIndexIntoMasterTable(DATA, GPIO_Pin_LUT);
        struct _ATOM_GPIO_PIN_LUT *gpio_info;
        ATOM_GPIO_PIN_ASSIGNMENT *pin;
        u16 data_offset, size;
        int i, num_indices;

        memset(&gpio, 0, sizeof(struct radeon_gpio_rec));
        gpio.valid = false;

        if (atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
                gpio_info = (struct _ATOM_GPIO_PIN_LUT *)(ctx->bios + data_offset);

                num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                        sizeof(ATOM_GPIO_PIN_ASSIGNMENT);

                pin = gpio_info->asGPIO_Pin;
                for (i = 0; i < num_indices; i++) {
                        if (id == pin->ucGPIO_ID) {
                                gpio.id = pin->ucGPIO_ID;
                                gpio.reg = le16_to_cpu(pin->usGpioPin_AIndex) * 4;
                                gpio.shift = pin->ucGpioPinBitShift;
                                gpio.mask = (1 << pin->ucGpioPinBitShift);
                                gpio.valid = true;
                                break;
                        }
                        pin = (ATOM_GPIO_PIN_ASSIGNMENT *)
                                ((u8 *)pin + sizeof(ATOM_GPIO_PIN_ASSIGNMENT));
                }
        }

        return gpio;
}

static struct radeon_hpd radeon_atom_get_hpd_info_from_gpio(struct radeon_device *rdev,
                                                            struct radeon_gpio_rec *gpio)
{
        struct radeon_hpd hpd;
        u32 reg;

        memset(&hpd, 0, sizeof(struct radeon_hpd));

        if (ASIC_IS_DCE6(rdev))
                reg = SI_DC_GPIO_HPD_A;
        else if (ASIC_IS_DCE4(rdev))
                reg = EVERGREEN_DC_GPIO_HPD_A;
        else
                reg = AVIVO_DC_GPIO_HPD_A;

        hpd.gpio = *gpio;
        if (gpio->reg == reg) {
                switch(gpio->mask) {
                case (1 << 0):
                        hpd.hpd = RADEON_HPD_1;
                        break;
                case (1 << 8):
                        hpd.hpd = RADEON_HPD_2;
                        break;
                case (1 << 16):
                        hpd.hpd = RADEON_HPD_3;
                        break;
                case (1 << 24):
                        hpd.hpd = RADEON_HPD_4;
                        break;
                case (1 << 26):
                        hpd.hpd = RADEON_HPD_5;
                        break;
                case (1 << 28):
                        hpd.hpd = RADEON_HPD_6;
                        break;
                default:
                        hpd.hpd = RADEON_HPD_NONE;
                        break;
                }
        } else
                hpd.hpd = RADEON_HPD_NONE;
        return hpd;
}

static bool radeon_atom_apply_quirks(struct drm_device *dev,
                                     uint32_t supported_device,
                                     int *connector_type,
                                     struct radeon_i2c_bus_rec *i2c_bus,
                                     uint16_t *line_mux,
                                     struct radeon_hpd *hpd)
{
#ifdef __linux__
        struct pci_dev *pdev = to_pci_dev(dev->dev);
#else
        struct pci_dev *pdev = dev->pdev;
#endif

        /* Asus M2A-VM HDMI board lists the DVI port as HDMI */
        if ((pdev->device == 0x791e) &&
            (pdev->subsystem_vendor == 0x1043) &&
            (pdev->subsystem_device == 0x826d)) {
                if ((*connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
                    (supported_device == ATOM_DEVICE_DFP3_SUPPORT))
                        *connector_type = DRM_MODE_CONNECTOR_DVID;
        }

        /* Asrock RS600 board lists the DVI port as HDMI */
        if ((pdev->device == 0x7941) &&
            (pdev->subsystem_vendor == 0x1849) &&
            (pdev->subsystem_device == 0x7941)) {
                if ((*connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
                    (supported_device == ATOM_DEVICE_DFP3_SUPPORT))
                        *connector_type = DRM_MODE_CONNECTOR_DVID;
        }

        /* MSI K9A2GM V2/V3 board has no HDMI or DVI */
        if ((pdev->device == 0x796e) &&
            (pdev->subsystem_vendor == 0x1462) &&
            (pdev->subsystem_device == 0x7302)) {
                if ((supported_device == ATOM_DEVICE_DFP2_SUPPORT) ||
                    (supported_device == ATOM_DEVICE_DFP3_SUPPORT))
                        return false;
        }

        /* a-bit f-i90hd - ciaranm on #radeonhd - this board has no DVI */
        if ((pdev->device == 0x7941) &&
            (pdev->subsystem_vendor == 0x147b) &&
            (pdev->subsystem_device == 0x2412)) {
                if (*connector_type == DRM_MODE_CONNECTOR_DVII)
                        return false;
        }

        /* Falcon NW laptop lists vga ddc line for LVDS */
        if ((pdev->device == 0x5653) &&
            (pdev->subsystem_vendor == 0x1462) &&
            (pdev->subsystem_device == 0x0291)) {
                if (*connector_type == DRM_MODE_CONNECTOR_LVDS) {
                        i2c_bus->valid = false;
                        *line_mux = 53;
                }
        }

        /* HIS X1300 is DVI+VGA, not DVI+DVI */
        if ((pdev->device == 0x7146) &&
            (pdev->subsystem_vendor == 0x17af) &&
            (pdev->subsystem_device == 0x2058)) {
                if (supported_device == ATOM_DEVICE_DFP1_SUPPORT)
                        return false;
        }

        /* Gigabyte X1300 is DVI+VGA, not DVI+DVI */
        if ((pdev->device == 0x7142) &&
            (pdev->subsystem_vendor == 0x1458) &&
            (pdev->subsystem_device == 0x2134)) {
                if (supported_device == ATOM_DEVICE_DFP1_SUPPORT)
                        return false;
        }


        /* Funky macbooks */
        if ((pdev->device == 0x71C5) &&
            (pdev->subsystem_vendor == 0x106b) &&
            (pdev->subsystem_device == 0x0080)) {
                if ((supported_device == ATOM_DEVICE_CRT1_SUPPORT) ||
                    (supported_device == ATOM_DEVICE_DFP2_SUPPORT))
                        return false;
                if (supported_device == ATOM_DEVICE_CRT2_SUPPORT)
                        *line_mux = 0x90;
        }

        /* mac rv630, rv730, others */
        if ((supported_device == ATOM_DEVICE_TV1_SUPPORT) &&
            (*connector_type == DRM_MODE_CONNECTOR_DVII)) {
                *connector_type = DRM_MODE_CONNECTOR_9PinDIN;
                *line_mux = CONNECTOR_7PIN_DIN_ENUM_ID1;
        }

        /* ASUS HD 3600 XT board lists the DVI port as HDMI */
        if ((pdev->device == 0x9598) &&
            (pdev->subsystem_vendor == 0x1043) &&
            (pdev->subsystem_device == 0x01da)) {
                if (*connector_type == DRM_MODE_CONNECTOR_HDMIA) {
                        *connector_type = DRM_MODE_CONNECTOR_DVII;
                }
        }

        /* ASUS HD 3600 board lists the DVI port as HDMI */
        if ((pdev->device == 0x9598) &&
            (pdev->subsystem_vendor == 0x1043) &&
            (pdev->subsystem_device == 0x01e4)) {
                if (*connector_type == DRM_MODE_CONNECTOR_HDMIA) {
                        *connector_type = DRM_MODE_CONNECTOR_DVII;
                }
        }

        /* ASUS HD 3450 board lists the DVI port as HDMI */
        if ((pdev->device == 0x95C5) &&
            (pdev->subsystem_vendor == 0x1043) &&
            (pdev->subsystem_device == 0x01e2)) {
                if (*connector_type == DRM_MODE_CONNECTOR_HDMIA) {
                        *connector_type = DRM_MODE_CONNECTOR_DVII;
                }
        }

        /* some BIOSes seem to report DAC on HDMI - usually this is a board with
         * HDMI + VGA reporting as HDMI
         */
        if (*connector_type == DRM_MODE_CONNECTOR_HDMIA) {
                if (supported_device & (ATOM_DEVICE_CRT_SUPPORT)) {
                        *connector_type = DRM_MODE_CONNECTOR_VGA;
                        *line_mux = 0;
                }
        }

        /* Acer laptop (Acer TravelMate 5730/5730G) has an HDMI port
         * on the laptop and a DVI port on the docking station and
         * both share the same encoder, hpd pin, and ddc line.
         * So while the bios table is technically correct,
         * we drop the DVI port here since xrandr has no concept of
         * encoders and will try and drive both connectors
         * with different crtcs which isn't possible on the hardware
         * side and leaves no crtcs for LVDS or VGA.
         */
        if (((pdev->device == 0x95c4) || (pdev->device == 0x9591)) &&
            (pdev->subsystem_vendor == 0x1025) &&
            (pdev->subsystem_device == 0x013c)) {
                if ((*connector_type == DRM_MODE_CONNECTOR_DVII) &&
                    (supported_device == ATOM_DEVICE_DFP1_SUPPORT)) {
                        /* actually it's a DVI-D port not DVI-I */
                        *connector_type = DRM_MODE_CONNECTOR_DVID;
                        return false;
                }
        }

        /* XFX Pine Group device rv730 reports no VGA DDC lines
         * even though they are wired up to record 0x93
         */
        if ((pdev->device == 0x9498) &&
            (pdev->subsystem_vendor == 0x1682) &&
            (pdev->subsystem_device == 0x2452) &&
            (i2c_bus->valid == false) &&
            !(supported_device & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))) {
                struct radeon_device *rdev = dev->dev_private;
                *i2c_bus = radeon_lookup_i2c_gpio(rdev, 0x93);
        }

        /* Fujitsu D3003-S2 board lists DVI-I as DVI-D and VGA */
        if (((pdev->device == 0x9802) ||
             (pdev->device == 0x9805) ||
             (pdev->device == 0x9806)) &&
            (pdev->subsystem_vendor == 0x1734) &&
            (pdev->subsystem_device == 0x11bd)) {
                if (*connector_type == DRM_MODE_CONNECTOR_VGA) {
                        *connector_type = DRM_MODE_CONNECTOR_DVII;
                        *line_mux = 0x3103;
                } else if (*connector_type == DRM_MODE_CONNECTOR_DVID) {
                        *connector_type = DRM_MODE_CONNECTOR_DVII;
                }
        }

        return true;
}

static const int supported_devices_connector_convert[] = {
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_VGA,
        DRM_MODE_CONNECTOR_DVII,
        DRM_MODE_CONNECTOR_DVID,
        DRM_MODE_CONNECTOR_DVIA,
        DRM_MODE_CONNECTOR_SVIDEO,
        DRM_MODE_CONNECTOR_Composite,
        DRM_MODE_CONNECTOR_LVDS,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_HDMIA,
        DRM_MODE_CONNECTOR_HDMIB,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_9PinDIN,
        DRM_MODE_CONNECTOR_DisplayPort
};

static const uint16_t supported_devices_connector_object_id_convert[] = {
        CONNECTOR_OBJECT_ID_NONE,
        CONNECTOR_OBJECT_ID_VGA,
        CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I, /* not all boards support DL */
        CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D, /* not all boards support DL */
        CONNECTOR_OBJECT_ID_VGA, /* technically DVI-A */
        CONNECTOR_OBJECT_ID_COMPOSITE,
        CONNECTOR_OBJECT_ID_SVIDEO,
        CONNECTOR_OBJECT_ID_LVDS,
        CONNECTOR_OBJECT_ID_9PIN_DIN,
        CONNECTOR_OBJECT_ID_9PIN_DIN,
        CONNECTOR_OBJECT_ID_DISPLAYPORT,
        CONNECTOR_OBJECT_ID_HDMI_TYPE_A,
        CONNECTOR_OBJECT_ID_HDMI_TYPE_B,
        CONNECTOR_OBJECT_ID_SVIDEO
};

static const int object_connector_convert[] = {
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_DVII,
        DRM_MODE_CONNECTOR_DVII,
        DRM_MODE_CONNECTOR_DVID,
        DRM_MODE_CONNECTOR_DVID,
        DRM_MODE_CONNECTOR_VGA,
        DRM_MODE_CONNECTOR_Composite,
        DRM_MODE_CONNECTOR_SVIDEO,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_9PinDIN,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_HDMIA,
        DRM_MODE_CONNECTOR_HDMIB,
        DRM_MODE_CONNECTOR_LVDS,
        DRM_MODE_CONNECTOR_9PinDIN,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_Unknown,
        DRM_MODE_CONNECTOR_DisplayPort,
        DRM_MODE_CONNECTOR_eDP,
        DRM_MODE_CONNECTOR_Unknown
};

bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
{
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        struct atom_context *ctx = mode_info->atom_context;
        int index = GetIndexIntoMasterTable(DATA, Object_Header);
        u16 size, data_offset;
        u8 frev, crev;
        ATOM_CONNECTOR_OBJECT_TABLE *con_obj;
        ATOM_ENCODER_OBJECT_TABLE *enc_obj;
        ATOM_OBJECT_TABLE *router_obj;
        ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
        ATOM_OBJECT_HEADER *obj_header;
        int i, j, k, path_size, device_support;
        int connector_type;
        u16 igp_lane_info, conn_id, connector_object_id;
        struct radeon_i2c_bus_rec ddc_bus;
        struct radeon_router router;
        struct radeon_gpio_rec gpio;
        struct radeon_hpd hpd;

        if (!atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
                return false;

        if (crev < 2)
                return false;

        obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
        path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
            (ctx->bios + data_offset +
             le16_to_cpu(obj_header->usDisplayPathTableOffset));
        con_obj = (ATOM_CONNECTOR_OBJECT_TABLE *)
            (ctx->bios + data_offset +
             le16_to_cpu(obj_header->usConnectorObjectTableOffset));
        enc_obj = (ATOM_ENCODER_OBJECT_TABLE *)
            (ctx->bios + data_offset +
             le16_to_cpu(obj_header->usEncoderObjectTableOffset));
        router_obj = (ATOM_OBJECT_TABLE *)
                (ctx->bios + data_offset +
                 le16_to_cpu(obj_header->usRouterObjectTableOffset));
        device_support = le16_to_cpu(obj_header->usDeviceSupport);

        path_size = 0;
        for (i = 0; i < path_obj->ucNumOfDispPath; i++) {
                uint8_t *addr = (uint8_t *) path_obj->asDispPath;
                ATOM_DISPLAY_OBJECT_PATH *path;
                addr += path_size;
                path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
                path_size += le16_to_cpu(path->usSize);

                if (device_support & le16_to_cpu(path->usDeviceTag)) {
                        uint8_t con_obj_id, con_obj_num;

                        con_obj_id =
                            (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK)
                            >> OBJECT_ID_SHIFT;
                        con_obj_num =
                            (le16_to_cpu(path->usConnObjectId) & ENUM_ID_MASK)
                            >> ENUM_ID_SHIFT;

                        /* TODO CV support */
                        if (le16_to_cpu(path->usDeviceTag) ==
                                ATOM_DEVICE_CV_SUPPORT)
                                continue;

                        /* IGP chips */
                        if ((rdev->flags & RADEON_IS_IGP) &&
                            (con_obj_id ==
                             CONNECTOR_OBJECT_ID_PCIE_CONNECTOR)) {
                                uint16_t igp_offset = 0;
                                ATOM_INTEGRATED_SYSTEM_INFO_V2 *igp_obj;

                                index =
                                    GetIndexIntoMasterTable(DATA,
                                                            IntegratedSystemInfo);

                                if (atom_parse_data_header(ctx, index, &size, &frev,
                                                           &crev, &igp_offset)) {

                                        if (crev >= 2) {
                                                igp_obj =
                                                        (ATOM_INTEGRATED_SYSTEM_INFO_V2
                                                         *) (ctx->bios + igp_offset);

                                                if (igp_obj) {
                                                        uint32_t slot_config, ct;

                                                        if (con_obj_num == 1)
                                                                slot_config =
                                                                        igp_obj->
                                                                        ulDDISlot1Config;
                                                        else
                                                                slot_config =
                                                                        igp_obj->
                                                                        ulDDISlot2Config;

                                                        ct = (slot_config >> 16) & 0xff;
                                                        connector_type =
                                                                object_connector_convert
                                                                [ct];
                                                        connector_object_id = ct;
                                                        igp_lane_info =
                                                                slot_config & 0xffff;
                                                } else
                                                        continue;
                                        } else
                                                continue;
                                } else {
                                        igp_lane_info = 0;
                                        connector_type =
                                                object_connector_convert[con_obj_id];
                                        connector_object_id = con_obj_id;
                                }
                        } else {
                                igp_lane_info = 0;
                                connector_type =
                                    object_connector_convert[con_obj_id];
                                connector_object_id = con_obj_id;
                        }

                        if (connector_type == DRM_MODE_CONNECTOR_Unknown)
                                continue;

                        router.ddc_valid = false;
                        router.cd_valid = false;
                        for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
                                uint8_t grph_obj_type =
                                    (le16_to_cpu(path->usGraphicObjIds[j]) &
                                     OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;

                                if (grph_obj_type == GRAPH_OBJECT_TYPE_ENCODER) {
                                        for (k = 0; k < enc_obj->ucNumberOfObjects; k++) {
                                                u16 encoder_obj = le16_to_cpu(enc_obj->asObjects[k].usObjectID);
                                                if (le16_to_cpu(path->usGraphicObjIds[j]) == encoder_obj) {
                                                        ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
                                                                (ctx->bios + data_offset +
                                                                 le16_to_cpu(enc_obj->asObjects[k].usRecordOffset));
                                                        ATOM_ENCODER_CAP_RECORD *cap_record;
                                                        u16 caps = 0;

                                                        while (record->ucRecordSize > 0 &&
                                                               record->ucRecordType > 0 &&
                                                               record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
                                                                switch (record->ucRecordType) {
                                                                case ATOM_ENCODER_CAP_RECORD_TYPE:
                                                                        cap_record =(ATOM_ENCODER_CAP_RECORD *)
                                                                                record;
                                                                        caps = le16_to_cpu(cap_record->usEncoderCap);
                                                                        break;
                                                                }
                                                                record = (ATOM_COMMON_RECORD_HEADER *)
                                                                        ((char *)record + record->ucRecordSize);
                                                        }
                                                        radeon_add_atom_encoder(dev,
                                                                                encoder_obj,
                                                                                le16_to_cpu
                                                                                (path->
                                                                                 usDeviceTag),
                                                                                caps);
                                                }
                                        }
                                } else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
                                        for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
                                                u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
                                                if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
                                                        ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
                                                                (ctx->bios + data_offset +
                                                                 le16_to_cpu(router_obj->asObjects[k].usRecordOffset));
                                                        ATOM_I2C_RECORD *i2c_record;
                                                        ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
                                                        ATOM_ROUTER_DDC_PATH_SELECT_RECORD *ddc_path;
                                                        ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *cd_path;
                                                        ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *router_src_dst_table =
                                                                (ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
                                                                (ctx->bios + data_offset +
                                                                 le16_to_cpu(router_obj->asObjects[k].usSrcDstTableOffset));
                                                        u8 *num_dst_objs = (u8 *)
                                                                ((u8 *)router_src_dst_table + 1 +
                                                                 (router_src_dst_table->ucNumberOfSrc * 2));
                                                        u16 *dst_objs = (u16 *)(num_dst_objs + 1);
                                                        int enum_id;

                                                        router.router_id = router_obj_id;
                                                        for (enum_id = 0; enum_id < (*num_dst_objs); enum_id++) {
                                                                if (le16_to_cpu(path->usConnObjectId) ==
                                                                    le16_to_cpu(dst_objs[enum_id]))
                                                                        break;
                                                        }

                                                        while (record->ucRecordSize > 0 &&
                                                               record->ucRecordType > 0 &&
                                                               record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
                                                                switch (record->ucRecordType) {
                                                                case ATOM_I2C_RECORD_TYPE:
                                                                        i2c_record =
                                                                                (ATOM_I2C_RECORD *)
                                                                                record;
                                                                        i2c_config =
                                                                                (ATOM_I2C_ID_CONFIG_ACCESS *)
                                                                                &i2c_record->sucI2cId;
                                                                        router.i2c_info =
                                                                                radeon_lookup_i2c_gpio(rdev,
                                                                                                       i2c_config->
                                                                                                       ucAccess);
                                                                        router.i2c_addr = i2c_record->ucI2CAddr >> 1;
                                                                        break;
                                                                case ATOM_ROUTER_DDC_PATH_SELECT_RECORD_TYPE:
                                                                        ddc_path = (ATOM_ROUTER_DDC_PATH_SELECT_RECORD *)
                                                                                record;
                                                                        router.ddc_valid = true;
                                                                        router.ddc_mux_type = ddc_path->ucMuxType;
                                                                        router.ddc_mux_control_pin = ddc_path->ucMuxControlPin;
                                                                        router.ddc_mux_state = ddc_path->ucMuxState[enum_id];
                                                                        break;
                                                                case ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD_TYPE:
                                                                        cd_path = (ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *)
                                                                                record;
                                                                        router.cd_valid = true;
                                                                        router.cd_mux_type = cd_path->ucMuxType;
                                                                        router.cd_mux_control_pin = cd_path->ucMuxControlPin;
                                                                        router.cd_mux_state = cd_path->ucMuxState[enum_id];
                                                                        break;
                                                                }
                                                                record = (ATOM_COMMON_RECORD_HEADER *)
                                                                        ((char *)record + record->ucRecordSize);
                                                        }
                                                }
                                        }
                                }
                        }

                        /* look up gpio for ddc, hpd */
                        ddc_bus.valid = false;
                        hpd.hpd = RADEON_HPD_NONE;
                        if ((le16_to_cpu(path->usDeviceTag) &
                             (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) {
                                for (j = 0; j < con_obj->ucNumberOfObjects; j++) {
                                        if (le16_to_cpu(path->usConnObjectId) ==
                                            le16_to_cpu(con_obj->asObjects[j].
                                                        usObjectID)) {
                                                ATOM_COMMON_RECORD_HEADER
                                                    *record =
                                                    (ATOM_COMMON_RECORD_HEADER
                                                     *)
                                                    (ctx->bios + data_offset +
                                                     le16_to_cpu(con_obj->
                                                                 asObjects[j].
                                                                 usRecordOffset));
                                                ATOM_I2C_RECORD *i2c_record;
                                                ATOM_HPD_INT_RECORD *hpd_record;
                                                ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;

                                                while (record->ucRecordSize > 0 &&
                                                       record->ucRecordType > 0 &&
                                                       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
                                                        switch (record->ucRecordType) {
                                                        case ATOM_I2C_RECORD_TYPE:
                                                                i2c_record =
                                                                    (ATOM_I2C_RECORD *)
                                                                        record;
                                                                i2c_config =
                                                                        (ATOM_I2C_ID_CONFIG_ACCESS *)
                                                                        &i2c_record->sucI2cId;
                                                                ddc_bus = radeon_lookup_i2c_gpio(rdev,
                                                                                                 i2c_config->
                                                                                                 ucAccess);
                                                                break;
                                                        case ATOM_HPD_INT_RECORD_TYPE:
                                                                hpd_record =
                                                                        (ATOM_HPD_INT_RECORD *)
                                                                        record;
                                                                gpio = radeon_atombios_lookup_gpio(rdev,
                                                                                          hpd_record->ucHPDIntGPIOID);
                                                                hpd = radeon_atom_get_hpd_info_from_gpio(rdev, &gpio);
                                                                hpd.plugged_state = hpd_record->ucPlugged_PinState;
                                                                break;
                                                        }
                                                        record =
                                                            (ATOM_COMMON_RECORD_HEADER
                                                             *) ((char *)record
                                                                 +
                                                                 record->
                                                                 ucRecordSize);
                                                }
                                                break;
                                        }
                                }
                        }

                        /* needed for aux chan transactions */
                        ddc_bus.hpd = hpd.hpd;

                        conn_id = le16_to_cpu(path->usConnObjectId);

                        if (!radeon_atom_apply_quirks
                            (dev, le16_to_cpu(path->usDeviceTag), &connector_type,
                             &ddc_bus, &conn_id, &hpd))
                                continue;

                        radeon_add_atom_connector(dev,
                                                  conn_id,
                                                  le16_to_cpu(path->
                                                              usDeviceTag),
                                                  connector_type, &ddc_bus,
                                                  igp_lane_info,
                                                  connector_object_id,
                                                  &hpd,
                                                  &router);

                }
        }

        radeon_link_encoder_connector(dev);
        return true;
}

static uint16_t atombios_get_connector_object_id(struct drm_device *dev,
                                                 int connector_type,
                                                 uint16_t devices)
{
        struct radeon_device *rdev = dev->dev_private;

        if (rdev->flags & RADEON_IS_IGP) {
                return supported_devices_connector_object_id_convert
                        [connector_type];
        } else if (((connector_type == DRM_MODE_CONNECTOR_DVII) ||
                    (connector_type == DRM_MODE_CONNECTOR_DVID)) &&
                   (devices & ATOM_DEVICE_DFP2_SUPPORT))  {
                struct radeon_mode_info *mode_info = &rdev->mode_info;
                struct atom_context *ctx = mode_info->atom_context;
                int index = GetIndexIntoMasterTable(DATA, XTMDS_Info);
                uint16_t size, data_offset;
                uint8_t frev, crev;
                ATOM_XTMDS_INFO *xtmds;

                if (atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset)) {
                        xtmds = (ATOM_XTMDS_INFO *)(ctx->bios + data_offset);

                        if (xtmds->ucSupportedLink & ATOM_XTMDS_SUPPORTED_DUALLINK) {
                                if (connector_type == DRM_MODE_CONNECTOR_DVII)
                                        return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I;
                                else
                                        return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D;
                        } else {
                                if (connector_type == DRM_MODE_CONNECTOR_DVII)
                                        return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
                                else
                                        return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D;
                        }
                } else
                        return supported_devices_connector_object_id_convert
                                [connector_type];
        } else {
                return supported_devices_connector_object_id_convert
                        [connector_type];
        }
}

struct bios_connector {
        bool valid;
        uint16_t line_mux;
        uint16_t devices;
        int connector_type;
        struct radeon_i2c_bus_rec ddc_bus;
        struct radeon_hpd hpd;
};

bool radeon_get_atom_connector_info_from_supported_devices_table(struct
                                                                 drm_device
                                                                 *dev)
{
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        struct atom_context *ctx = mode_info->atom_context;
        int index = GetIndexIntoMasterTable(DATA, SupportedDevicesInfo);
        uint16_t size, data_offset;
        uint8_t frev, crev;
        uint16_t device_support;
        uint8_t dac;
        union atom_supported_devices *supported_devices;
        int i, j, max_device;
        struct bios_connector *bios_connectors;
        size_t bc_size = sizeof(*bios_connectors) * ATOM_MAX_SUPPORTED_DEVICE;
        struct radeon_router router;

        router.ddc_valid = false;
        router.cd_valid = false;

        bios_connectors = kzalloc(bc_size, GFP_KERNEL);
        if (!bios_connectors)
                return false;

        if (!atom_parse_data_header(ctx, index, &size, &frev, &crev,
                                    &data_offset)) {
                kfree(bios_connectors);
                return false;
        }

        supported_devices =
            (union atom_supported_devices *)(ctx->bios + data_offset);

        device_support = le16_to_cpu(supported_devices->info.usDeviceSupport);

        if (frev > 1)
                max_device = ATOM_MAX_SUPPORTED_DEVICE;
        else
                max_device = ATOM_MAX_SUPPORTED_DEVICE_INFO;

        for (i = 0; i < max_device; i++) {
                ATOM_CONNECTOR_INFO_I2C ci;

                if (frev > 1)
                        ci = supported_devices->info_2d1.asConnInfo[i];
                else
                        ci = supported_devices->info.asConnInfo[i];

                bios_connectors[i].valid = false;

                if (!(device_support & (1 << i))) {
                        continue;
                }

                if (i == ATOM_DEVICE_CV_INDEX) {
                        DRM_DEBUG_KMS("Skipping Component Video\n");
                        continue;
                }

                bios_connectors[i].connector_type =
                    supported_devices_connector_convert[ci.sucConnectorInfo.
                                                        sbfAccess.
                                                        bfConnectorType];

                if (bios_connectors[i].connector_type ==
                    DRM_MODE_CONNECTOR_Unknown)
                        continue;

                dac = ci.sucConnectorInfo.sbfAccess.bfAssociatedDAC;

                bios_connectors[i].line_mux =
                        ci.sucI2cId.ucAccess;

                /* give tv unique connector ids */
                if (i == ATOM_DEVICE_TV1_INDEX) {
                        bios_connectors[i].ddc_bus.valid = false;
                        bios_connectors[i].line_mux = 50;
                } else if (i == ATOM_DEVICE_TV2_INDEX) {
                        bios_connectors[i].ddc_bus.valid = false;
                        bios_connectors[i].line_mux = 51;
                } else if (i == ATOM_DEVICE_CV_INDEX) {
                        bios_connectors[i].ddc_bus.valid = false;
                        bios_connectors[i].line_mux = 52;
                } else
                        bios_connectors[i].ddc_bus =
                            radeon_lookup_i2c_gpio(rdev,
                                                   bios_connectors[i].line_mux);

                if ((crev > 1) && (frev > 1)) {
                        u8 isb = supported_devices->info_2d1.asIntSrcInfo[i].ucIntSrcBitmap;
                        switch (isb) {
                        case 0x4:
                                bios_connectors[i].hpd.hpd = RADEON_HPD_1;
                                break;
                        case 0xa:
                                bios_connectors[i].hpd.hpd = RADEON_HPD_2;
                                break;
                        default:
                                bios_connectors[i].hpd.hpd = RADEON_HPD_NONE;
                                break;
                        }
                } else {
                        if (i == ATOM_DEVICE_DFP1_INDEX)
                                bios_connectors[i].hpd.hpd = RADEON_HPD_1;
                        else if (i == ATOM_DEVICE_DFP2_INDEX)
                                bios_connectors[i].hpd.hpd = RADEON_HPD_2;
                        else
                                bios_connectors[i].hpd.hpd = RADEON_HPD_NONE;
                }

                /* Always set the connector type to VGA for CRT1/CRT2. if they are
                 * shared with a DVI port, we'll pick up the DVI connector when we
                 * merge the outputs.  Some bioses incorrectly list VGA ports as DVI.
                 */
                if (i == ATOM_DEVICE_CRT1_INDEX || i == ATOM_DEVICE_CRT2_INDEX)
                        bios_connectors[i].connector_type =
                            DRM_MODE_CONNECTOR_VGA;

                if (!radeon_atom_apply_quirks
                    (dev, (1 << i), &bios_connectors[i].connector_type,
                     &bios_connectors[i].ddc_bus, &bios_connectors[i].line_mux,
                     &bios_connectors[i].hpd))
                        continue;

                bios_connectors[i].valid = true;
                bios_connectors[i].devices = (1 << i);

                if (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom)
                        radeon_add_atom_encoder(dev,
                                                radeon_get_encoder_enum(dev,
                                                                      (1 << i),
                                                                      dac),
                                                (1 << i),
                                                0);
                else
                        radeon_add_legacy_encoder(dev,
                                                  radeon_get_encoder_enum(dev,
                                                                        (1 << i),
                                                                        dac),
                                                  (1 << i));
        }

        /* combine shared connectors */
        for (i = 0; i < max_device; i++) {
                if (bios_connectors[i].valid) {
                        for (j = 0; j < max_device; j++) {
                                if (bios_connectors[j].valid && (i != j)) {
                                        if (bios_connectors[i].line_mux ==
                                            bios_connectors[j].line_mux) {
                                                /* make sure not to combine LVDS */
                                                if (bios_connectors[i].devices & (ATOM_DEVICE_LCD_SUPPORT)) {
                                                        bios_connectors[i].line_mux = 53;
                                                        bios_connectors[i].ddc_bus.valid = false;
                                                        continue;
                                                }
                                                if (bios_connectors[j].devices & (ATOM_DEVICE_LCD_SUPPORT)) {
                                                        bios_connectors[j].line_mux = 53;
                                                        bios_connectors[j].ddc_bus.valid = false;
                                                        continue;
                                                }
                                                /* combine analog and digital for DVI-I */
                                                if (((bios_connectors[i].devices & (ATOM_DEVICE_DFP_SUPPORT)) &&
                                                     (bios_connectors[j].devices & (ATOM_DEVICE_CRT_SUPPORT))) ||
                                                    ((bios_connectors[j].devices & (ATOM_DEVICE_DFP_SUPPORT)) &&
                                                     (bios_connectors[i].devices & (ATOM_DEVICE_CRT_SUPPORT)))) {
                                                        bios_connectors[i].devices |=
                                                                bios_connectors[j].devices;
                                                        bios_connectors[i].connector_type =
                                                                DRM_MODE_CONNECTOR_DVII;
                                                        if (bios_connectors[j].devices & (ATOM_DEVICE_DFP_SUPPORT))
                                                                bios_connectors[i].hpd =
                                                                        bios_connectors[j].hpd;
                                                        bios_connectors[j].valid = false;
                                                }
                                        }
                                }
                        }
                }
        }

        /* add the connectors */
        for (i = 0; i < max_device; i++) {
                if (bios_connectors[i].valid) {
                        uint16_t connector_object_id =
                                atombios_get_connector_object_id(dev,
                                                      bios_connectors[i].connector_type,
                                                      bios_connectors[i].devices);
                        radeon_add_atom_connector(dev,
                                                  bios_connectors[i].line_mux,
                                                  bios_connectors[i].devices,
                                                  bios_connectors[i].
                                                  connector_type,
                                                  &bios_connectors[i].ddc_bus,
                                                  0,
                                                  connector_object_id,
                                                  &bios_connectors[i].hpd,
                                                  &router);
                }
        }

        radeon_link_encoder_connector(dev);

        kfree(bios_connectors);
        return true;
}

union firmware_info {
        ATOM_FIRMWARE_INFO info;
        ATOM_FIRMWARE_INFO_V1_2 info_12;
        ATOM_FIRMWARE_INFO_V1_3 info_13;
        ATOM_FIRMWARE_INFO_V1_4 info_14;
        ATOM_FIRMWARE_INFO_V2_1 info_21;
        ATOM_FIRMWARE_INFO_V2_2 info_22;
};

union igp_info {
        struct _ATOM_INTEGRATED_SYSTEM_INFO info;
        struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
        struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
        struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
        struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
};

static void radeon_atombios_get_dentist_vco_freq(struct radeon_device *rdev)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
        union igp_info *igp_info;
        u8 frev, crev;
        u16 data_offset;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                        &frev, &crev, &data_offset)) {
                igp_info = (union igp_info *)(mode_info->atom_context->bios +
                        data_offset);
                rdev->clock.vco_freq =
                        le32_to_cpu(igp_info->info_6.ulDentistVCOFreq);
        }
}

bool radeon_atom_get_clock_info(struct drm_device *dev)
{
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
        union firmware_info *firmware_info;
        uint8_t frev, crev;
        struct radeon_pll *p1pll = &rdev->clock.p1pll;
        struct radeon_pll *p2pll = &rdev->clock.p2pll;
        struct radeon_pll *dcpll = &rdev->clock.dcpll;
        struct radeon_pll *spll = &rdev->clock.spll;
        struct radeon_pll *mpll = &rdev->clock.mpll;
        uint16_t data_offset;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {
                firmware_info =
                        (union firmware_info *)(mode_info->atom_context->bios +
                                                data_offset);
                /* pixel clocks */
                p1pll->reference_freq =
                    le16_to_cpu(firmware_info->info.usReferenceClock);
                p1pll->reference_div = 0;

                if ((frev < 2) && (crev < 2))
                        p1pll->pll_out_min =
                                le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);
                else
                        p1pll->pll_out_min =
                                le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
                p1pll->pll_out_max =
                    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);

                if (((frev < 2) && (crev >= 4)) || (frev >= 2)) {
                        p1pll->lcd_pll_out_min =
                                le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
                        if (p1pll->lcd_pll_out_min == 0)
                                p1pll->lcd_pll_out_min = p1pll->pll_out_min;
                        p1pll->lcd_pll_out_max =
                                le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
                        if (p1pll->lcd_pll_out_max == 0)
                                p1pll->lcd_pll_out_max = p1pll->pll_out_max;
                } else {
                        p1pll->lcd_pll_out_min = p1pll->pll_out_min;
                        p1pll->lcd_pll_out_max = p1pll->pll_out_max;
                }

                if (p1pll->pll_out_min == 0) {
                        if (ASIC_IS_AVIVO(rdev))
                                p1pll->pll_out_min = 64800;
                        else
                                p1pll->pll_out_min = 20000;
                }

                p1pll->pll_in_min =
                    le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Input);
                p1pll->pll_in_max =
                    le16_to_cpu(firmware_info->info.usMaxPixelClockPLL_Input);

                *p2pll = *p1pll;

                /* system clock */
                if (ASIC_IS_DCE4(rdev))
                        spll->reference_freq =
                                le16_to_cpu(firmware_info->info_21.usCoreReferenceClock);
                else
                        spll->reference_freq =
                                le16_to_cpu(firmware_info->info.usReferenceClock);
                spll->reference_div = 0;

                spll->pll_out_min =
                    le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Output);
                spll->pll_out_max =
                    le32_to_cpu(firmware_info->info.ulMaxEngineClockPLL_Output);

                /* ??? */
                if (spll->pll_out_min == 0) {
                        if (ASIC_IS_AVIVO(rdev))
                                spll->pll_out_min = 64800;
                        else
                                spll->pll_out_min = 20000;
                }

                spll->pll_in_min =
                    le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Input);
                spll->pll_in_max =
                    le16_to_cpu(firmware_info->info.usMaxEngineClockPLL_Input);

                /* memory clock */
                if (ASIC_IS_DCE4(rdev))
                        mpll->reference_freq =
                                le16_to_cpu(firmware_info->info_21.usMemoryReferenceClock);
                else
                        mpll->reference_freq =
                                le16_to_cpu(firmware_info->info.usReferenceClock);
                mpll->reference_div = 0;

                mpll->pll_out_min =
                    le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Output);
                mpll->pll_out_max =
                    le32_to_cpu(firmware_info->info.ulMaxMemoryClockPLL_Output);

                /* ??? */
                if (mpll->pll_out_min == 0) {
                        if (ASIC_IS_AVIVO(rdev))
                                mpll->pll_out_min = 64800;
                        else
                                mpll->pll_out_min = 20000;
                }

                mpll->pll_in_min =
                    le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Input);
                mpll->pll_in_max =
                    le16_to_cpu(firmware_info->info.usMaxMemoryClockPLL_Input);

                rdev->clock.default_sclk =
                    le32_to_cpu(firmware_info->info.ulDefaultEngineClock);
                rdev->clock.default_mclk =
                    le32_to_cpu(firmware_info->info.ulDefaultMemoryClock);

                if (ASIC_IS_DCE4(rdev)) {
                        rdev->clock.default_dispclk =
                                le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
                        if (rdev->clock.default_dispclk == 0) {
                                if (ASIC_IS_DCE6(rdev))
                                        rdev->clock.default_dispclk = 60000; /* 600 Mhz */
                                else if (ASIC_IS_DCE5(rdev))
                                        rdev->clock.default_dispclk = 54000; /* 540 Mhz */
                                else
                                        rdev->clock.default_dispclk = 60000; /* 600 Mhz */
                        }
                        /* set a reasonable default for DP */
                        if (ASIC_IS_DCE6(rdev) && (rdev->clock.default_dispclk < 53900)) {
                                DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
                                         rdev->clock.default_dispclk / 100);
                                rdev->clock.default_dispclk = 60000;
                        }
                        rdev->clock.dp_extclk =
                                le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
                        rdev->clock.current_dispclk = rdev->clock.default_dispclk;
                }
                *dcpll = *p1pll;

                rdev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
                if (rdev->clock.max_pixel_clock == 0)
                        rdev->clock.max_pixel_clock = 40000;

                /* not technically a clock, but... */
                rdev->mode_info.firmware_flags =
                        le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);

                if (ASIC_IS_DCE8(rdev))
                        rdev->clock.vco_freq =
                                le32_to_cpu(firmware_info->info_22.ulGPUPLL_OutputFreq);
                else if (ASIC_IS_DCE5(rdev))
                        rdev->clock.vco_freq = rdev->clock.current_dispclk;
                else if (ASIC_IS_DCE41(rdev))
                        radeon_atombios_get_dentist_vco_freq(rdev);
                else
                        rdev->clock.vco_freq = rdev->clock.current_dispclk;

                if (rdev->clock.vco_freq == 0)
                        rdev->clock.vco_freq = 360000;  /* 3.6 GHz */

                return true;
        }

        return false;
}

bool radeon_atombios_sideport_present(struct radeon_device *rdev)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
        union igp_info *igp_info;
        u8 frev, crev;
        u16 data_offset;

        /* sideport is AMD only */
        if (rdev->family == CHIP_RS600)
                return false;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {
                igp_info = (union igp_info *)(mode_info->atom_context->bios +
                                      data_offset);
                switch (crev) {
                case 1:
                        if (le32_to_cpu(igp_info->info.ulBootUpMemoryClock))
                                return true;
                        break;
                case 2:
                        if (le32_to_cpu(igp_info->info_2.ulBootUpSidePortClock))
                                return true;
                        break;
                default:
                        DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
                        break;
                }
        }
        return false;
}

bool radeon_atombios_get_tmds_info(struct radeon_encoder *encoder,
                                   struct radeon_encoder_int_tmds *tmds)
{
        struct drm_device *dev = encoder->base.dev;
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, TMDS_Info);
        uint16_t data_offset;
        struct _ATOM_TMDS_INFO *tmds_info;
        uint8_t frev, crev;
        uint16_t maxfreq;
        int i;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {
                tmds_info =
                        (struct _ATOM_TMDS_INFO *)(mode_info->atom_context->bios +
                                                   data_offset);

                maxfreq = le16_to_cpu(tmds_info->usMaxFrequency);
                for (i = 0; i < 4; i++) {
                        tmds->tmds_pll[i].freq =
                            le16_to_cpu(tmds_info->asMiscInfo[i].usFrequency);
                        tmds->tmds_pll[i].value =
                            tmds_info->asMiscInfo[i].ucPLL_ChargePump & 0x3f;
                        tmds->tmds_pll[i].value |=
                            (tmds_info->asMiscInfo[i].
                             ucPLL_VCO_Gain & 0x3f) << 6;
                        tmds->tmds_pll[i].value |=
                            (tmds_info->asMiscInfo[i].
                             ucPLL_DutyCycle & 0xf) << 12;
                        tmds->tmds_pll[i].value |=
                            (tmds_info->asMiscInfo[i].
                             ucPLL_VoltageSwing & 0xf) << 16;

                        DRM_DEBUG_KMS("TMDS PLL From ATOMBIOS %u %x\n",
                                  tmds->tmds_pll[i].freq,
                                  tmds->tmds_pll[i].value);

                        if (maxfreq == tmds->tmds_pll[i].freq) {
                                tmds->tmds_pll[i].freq = 0xffffffff;
                                break;
                        }
                }
                return true;
        }
        return false;
}

bool radeon_atombios_get_ppll_ss_info(struct radeon_device *rdev,
                                      struct radeon_atom_ss *ss,
                                      int id)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, PPLL_SS_Info);
        uint16_t data_offset, size;
        struct _ATOM_SPREAD_SPECTRUM_INFO *ss_info;
        struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT *ss_assign;
        uint8_t frev, crev;
        int i, num_indices;

        memset(ss, 0, sizeof(struct radeon_atom_ss));
        if (atom_parse_data_header(mode_info->atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                ss_info =
                        (struct _ATOM_SPREAD_SPECTRUM_INFO *)(mode_info->atom_context->bios + data_offset);

                num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                        sizeof(ATOM_SPREAD_SPECTRUM_ASSIGNMENT);
                ss_assign = (struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT *)
                        ((u8 *)&ss_info->asSS_Info[0]);
                for (i = 0; i < num_indices; i++) {
                        if (ss_assign->ucSS_Id == id) {
                                ss->percentage =
                                        le16_to_cpu(ss_assign->usSpreadSpectrumPercentage);
                                ss->type = ss_assign->ucSpreadSpectrumType;
                                ss->step = ss_assign->ucSS_Step;
                                ss->delay = ss_assign->ucSS_Delay;
                                ss->range = ss_assign->ucSS_Range;
                                ss->refdiv = ss_assign->ucRecommendedRef_Div;
                                return true;
                        }
                        ss_assign = (struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT *)
                                ((u8 *)ss_assign + sizeof(struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT));
                }
        }
        return false;
}

static void radeon_atombios_get_igp_ss_overrides(struct radeon_device *rdev,
                                                 struct radeon_atom_ss *ss,
                                                 int id)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
        u16 data_offset, size;
        union igp_info *igp_info;
        u8 frev, crev;
        u16 percentage = 0, rate = 0;

        /* get any igp specific overrides */
        if (atom_parse_data_header(mode_info->atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                igp_info = (union igp_info *)
                        (mode_info->atom_context->bios + data_offset);
                switch (crev) {
                case 6:
                        switch (id) {
                        case ASIC_INTERNAL_SS_ON_TMDS:
                                percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
                                rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
                                break;
                        case ASIC_INTERNAL_SS_ON_HDMI:
                                percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
                                rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
                                break;
                        case ASIC_INTERNAL_SS_ON_LVDS:
                                percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
                                rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
                                break;
                        }
                        break;
                case 7:
                        switch (id) {
                        case ASIC_INTERNAL_SS_ON_TMDS:
                                percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
                                rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
                                break;
                        case ASIC_INTERNAL_SS_ON_HDMI:
                                percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
                                rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
                                break;
                        case ASIC_INTERNAL_SS_ON_LVDS:
                                percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
                                rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
                                break;
                        }
                        break;
                case 8:
                        switch (id) {
                        case ASIC_INTERNAL_SS_ON_TMDS:
                                percentage = le16_to_cpu(igp_info->info_8.usDVISSPercentage);
                                rate = le16_to_cpu(igp_info->info_8.usDVISSpreadRateIn10Hz);
                                break;
                        case ASIC_INTERNAL_SS_ON_HDMI:
                                percentage = le16_to_cpu(igp_info->info_8.usHDMISSPercentage);
                                rate = le16_to_cpu(igp_info->info_8.usHDMISSpreadRateIn10Hz);
                                break;
                        case ASIC_INTERNAL_SS_ON_LVDS:
                                percentage = le16_to_cpu(igp_info->info_8.usLvdsSSPercentage);
                                rate = le16_to_cpu(igp_info->info_8.usLvdsSSpreadRateIn10Hz);
                                break;
                        }
                        break;
                default:
                        DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
                        break;
                }
                if (percentage)
                        ss->percentage = percentage;
                if (rate)
                        ss->rate = rate;
        }
}

union asic_ss_info {
        struct _ATOM_ASIC_INTERNAL_SS_INFO info;
        struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 info_2;
        struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
};

union asic_ss_assignment {
        struct _ATOM_ASIC_SS_ASSIGNMENT v1;
        struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
        struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
};

bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev,
                                      struct radeon_atom_ss *ss,
                                      int id, u32 clock)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
        uint16_t data_offset, size;
        union asic_ss_info *ss_info;
        union asic_ss_assignment *ss_assign;
        uint8_t frev, crev;
        int i, num_indices;

        if (id == ASIC_INTERNAL_MEMORY_SS) {
                if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))
                        return false;
        }
        if (id == ASIC_INTERNAL_ENGINE_SS) {
                if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))
                        return false;
        }

        memset(ss, 0, sizeof(struct radeon_atom_ss));
        if (atom_parse_data_header(mode_info->atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {

                ss_info =
                        (union asic_ss_info *)(mode_info->atom_context->bios + data_offset);

                switch (frev) {
                case 1:
                        num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                                sizeof(ATOM_ASIC_SS_ASSIGNMENT);

                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
                        for (i = 0; i < num_indices; i++) {
                                if ((ss_assign->v1.ucClockIndication == id) &&
                                    (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
                                        ss->percentage =
                                                le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
                                        ss->type = ss_assign->v1.ucSpreadSpectrumMode;
                                        ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
                                        ss->percentage_divider = 100;
                                        return true;
                                }
                                ss_assign = (union asic_ss_assignment *)
                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
                        }
                        break;
                case 2:
                        num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                                sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
                        for (i = 0; i < num_indices; i++) {
                                if ((ss_assign->v2.ucClockIndication == id) &&
                                    (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
                                        ss->percentage =
                                                le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
                                        ss->type = ss_assign->v2.ucSpreadSpectrumMode;
                                        ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
                                        ss->percentage_divider = 100;
                                        if ((crev == 2) &&
                                            ((id == ASIC_INTERNAL_ENGINE_SS) ||
                                             (id == ASIC_INTERNAL_MEMORY_SS)))
                                                ss->rate /= 100;
                                        return true;
                                }
                                ss_assign = (union asic_ss_assignment *)
                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
                        }
                        break;
                case 3:
                        num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                                sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
                        for (i = 0; i < num_indices; i++) {
                                if ((ss_assign->v3.ucClockIndication == id) &&
                                    (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
                                        ss->percentage =
                                                le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
                                        ss->type = ss_assign->v3.ucSpreadSpectrumMode;
                                        ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
                                        if (ss_assign->v3.ucSpreadSpectrumMode &
                                            SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK)
                                                ss->percentage_divider = 1000;
                                        else
                                                ss->percentage_divider = 100;
                                        if ((id == ASIC_INTERNAL_ENGINE_SS) ||
                                            (id == ASIC_INTERNAL_MEMORY_SS))
                                                ss->rate /= 100;
                                        if (rdev->flags & RADEON_IS_IGP)
                                                radeon_atombios_get_igp_ss_overrides(rdev, ss, id);
                                        return true;
                                }
                                ss_assign = (union asic_ss_assignment *)
                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
                        }
                        break;
                default:
                        DRM_ERROR("Unsupported ASIC_InternalSS_Info table: %d %d\n", frev, crev);
                        break;
                }

        }
        return false;
}

union lvds_info {
        struct _ATOM_LVDS_INFO info;
        struct _ATOM_LVDS_INFO_V12 info_12;
};

struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
                                                              radeon_encoder
                                                              *encoder)
{
        struct drm_device *dev = encoder->base.dev;
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, LVDS_Info);
        uint16_t data_offset, misc;
        union lvds_info *lvds_info;
        uint8_t frev, crev;
        struct radeon_encoder_atom_dig *lvds = NULL;
        int encoder_enum = (encoder->encoder_enum & ENUM_ID_MASK) >> ENUM_ID_SHIFT;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {
                lvds_info =
                        (union lvds_info *)(mode_info->atom_context->bios + data_offset);
                lvds =
                    kzalloc(sizeof(struct radeon_encoder_atom_dig), GFP_KERNEL);

                if (!lvds)
                        return NULL;

                lvds->native_mode.clock =
                    le16_to_cpu(lvds_info->info.sLCDTiming.usPixClk) * 10;
                lvds->native_mode.hdisplay =
                    le16_to_cpu(lvds_info->info.sLCDTiming.usHActive);
                lvds->native_mode.vdisplay =
                    le16_to_cpu(lvds_info->info.sLCDTiming.usVActive);
                lvds->native_mode.htotal = lvds->native_mode.hdisplay +
                        le16_to_cpu(lvds_info->info.sLCDTiming.usHBlanking_Time);
                lvds->native_mode.hsync_start = lvds->native_mode.hdisplay +
                        le16_to_cpu(lvds_info->info.sLCDTiming.usHSyncOffset);
                lvds->native_mode.hsync_end = lvds->native_mode.hsync_start +
                        le16_to_cpu(lvds_info->info.sLCDTiming.usHSyncWidth);
                lvds->native_mode.vtotal = lvds->native_mode.vdisplay +
                        le16_to_cpu(lvds_info->info.sLCDTiming.usVBlanking_Time);
                lvds->native_mode.vsync_start = lvds->native_mode.vdisplay +
                        le16_to_cpu(lvds_info->info.sLCDTiming.usVSyncOffset);
                lvds->native_mode.vsync_end = lvds->native_mode.vsync_start +
                        le16_to_cpu(lvds_info->info.sLCDTiming.usVSyncWidth);
                lvds->panel_pwr_delay =
                    le16_to_cpu(lvds_info->info.usOffDelayInMs);
                lvds->lcd_misc = lvds_info->info.ucLVDS_Misc;

                misc = le16_to_cpu(lvds_info->info.sLCDTiming.susModeMiscInfo.usAccess);
                if (misc & ATOM_VSYNC_POLARITY)
                        lvds->native_mode.flags |= DRM_MODE_FLAG_NVSYNC;
                if (misc & ATOM_HSYNC_POLARITY)
                        lvds->native_mode.flags |= DRM_MODE_FLAG_NHSYNC;
                if (misc & ATOM_COMPOSITESYNC)
                        lvds->native_mode.flags |= DRM_MODE_FLAG_CSYNC;
                if (misc & ATOM_INTERLACE)
                        lvds->native_mode.flags |= DRM_MODE_FLAG_INTERLACE;
                if (misc & ATOM_DOUBLE_CLOCK_MODE)
                        lvds->native_mode.flags |= DRM_MODE_FLAG_DBLSCAN;

                lvds->native_mode.width_mm = le16_to_cpu(lvds_info->info.sLCDTiming.usImageHSize);
                lvds->native_mode.height_mm = le16_to_cpu(lvds_info->info.sLCDTiming.usImageVSize);

                /* set crtc values */
                drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V);

                lvds->lcd_ss_id = lvds_info->info.ucSS_Id;

                encoder->native_mode = lvds->native_mode;

                if (encoder_enum == 2)
                        lvds->linkb = true;
                else
                        lvds->linkb = false;

                /* parse the lcd record table */
                if (le16_to_cpu(lvds_info->info.usModePatchTableOffset)) {
                        ATOM_FAKE_EDID_PATCH_RECORD *fake_edid_record;
                        ATOM_PANEL_RESOLUTION_PATCH_RECORD *panel_res_record;
                        bool bad_record = false;
                        u8 *record;

                        if ((frev == 1) && (crev < 2))
                                /* absolute */
                                record = (u8 *)(mode_info->atom_context->bios +
                                                le16_to_cpu(lvds_info->info.usModePatchTableOffset));
                        else
                                /* relative */
                                record = (u8 *)(mode_info->atom_context->bios +
                                                data_offset +
                                                le16_to_cpu(lvds_info->info.usModePatchTableOffset));
                        while (*record != ATOM_RECORD_END_TYPE) {
                                switch (*record) {
                                case LCD_MODE_PATCH_RECORD_MODE_TYPE:
                                        record += sizeof(ATOM_PATCH_RECORD_MODE);
                                        break;
                                case LCD_RTS_RECORD_TYPE:
                                        record += sizeof(ATOM_LCD_RTS_RECORD);
                                        break;
                                case LCD_CAP_RECORD_TYPE:
                                        record += sizeof(ATOM_LCD_MODE_CONTROL_CAP);
                                        break;
                                case LCD_FAKE_EDID_PATCH_RECORD_TYPE:
                                        fake_edid_record = (ATOM_FAKE_EDID_PATCH_RECORD *)record;
                                        if (fake_edid_record->ucFakeEDIDLength) {
                                                const struct drm_edid *edid;
                                                int edid_size;

                                                if (fake_edid_record->ucFakeEDIDLength == 128)
                                                        edid_size = fake_edid_record->ucFakeEDIDLength;
                                                else
                                                        edid_size = fake_edid_record->ucFakeEDIDLength * 128;
                                                edid = drm_edid_alloc(fake_edid_record->ucFakeEDIDString, edid_size);
                                                if (drm_edid_valid(edid))
                                                        rdev->mode_info.bios_hardcoded_edid = edid;
                                                else
                                                        drm_edid_free(edid);
                                                record += struct_size(fake_edid_record,
                                                                      ucFakeEDIDString,
                                                                      edid_size);
                                        } else {
                                                /* empty fake edid record must be 3 bytes long */
                                                record += sizeof(ATOM_FAKE_EDID_PATCH_RECORD) + 1;
                                        }
                                        break;
                                case LCD_PANEL_RESOLUTION_RECORD_TYPE:
                                        panel_res_record = (ATOM_PANEL_RESOLUTION_PATCH_RECORD *)record;
                                        lvds->native_mode.width_mm = panel_res_record->usHSize;
                                        lvds->native_mode.height_mm = panel_res_record->usVSize;
                                        record += sizeof(ATOM_PANEL_RESOLUTION_PATCH_RECORD);
                                        break;
                                default:
                                        DRM_ERROR("Bad LCD record %d\n", *record);
                                        bad_record = true;
                                        break;
                                }
                                if (bad_record)
                                        break;
                        }
                }
        }
        return lvds;
}

struct radeon_encoder_primary_dac *
radeon_atombios_get_primary_dac_info(struct radeon_encoder *encoder)
{
        struct drm_device *dev = encoder->base.dev;
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, CompassionateData);
        uint16_t data_offset;
        struct _COMPASSIONATE_DATA *dac_info;
        uint8_t frev, crev;
        uint8_t bg, dac;
        struct radeon_encoder_primary_dac *p_dac = NULL;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {
                dac_info = (struct _COMPASSIONATE_DATA *)
                        (mode_info->atom_context->bios + data_offset);

                p_dac = kzalloc(sizeof(struct radeon_encoder_primary_dac), GFP_KERNEL);

                if (!p_dac)
                        return NULL;

                bg = dac_info->ucDAC1_BG_Adjustment;
                dac = dac_info->ucDAC1_DAC_Adjustment;
                p_dac->ps2_pdac_adj = (bg << 8) | (dac);

        }
        return p_dac;
}

bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index,
                                struct drm_display_mode *mode)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        ATOM_ANALOG_TV_INFO *tv_info;
        ATOM_ANALOG_TV_INFO_V1_2 *tv_info_v1_2;
        ATOM_DTD_FORMAT *dtd_timings;
        int data_index = GetIndexIntoMasterTable(DATA, AnalogTV_Info);
        u8 frev, crev;
        u16 data_offset, misc;

        if (!atom_parse_data_header(mode_info->atom_context, data_index, NULL,
                                    &frev, &crev, &data_offset))
                return false;

        switch (crev) {
        case 1:
                tv_info = (ATOM_ANALOG_TV_INFO *)(mode_info->atom_context->bios + data_offset);
                if (index >= MAX_SUPPORTED_TV_TIMING)
                        return false;

                mode->crtc_htotal = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_H_Total);
                mode->crtc_hdisplay = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_H_Disp);
                mode->crtc_hsync_start = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_H_SyncStart);
                mode->crtc_hsync_end = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_H_SyncStart) +
                        le16_to_cpu(tv_info->aModeTimings[index].usCRTC_H_SyncWidth);

                mode->crtc_vtotal = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_V_Total);
                mode->crtc_vdisplay = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_V_Disp);
                mode->crtc_vsync_start = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_V_SyncStart);
                mode->crtc_vsync_end = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_V_SyncStart) +
                        le16_to_cpu(tv_info->aModeTimings[index].usCRTC_V_SyncWidth);

                mode->flags = 0;
                misc = le16_to_cpu(tv_info->aModeTimings[index].susModeMiscInfo.usAccess);
                if (misc & ATOM_VSYNC_POLARITY)
                        mode->flags |= DRM_MODE_FLAG_NVSYNC;
                if (misc & ATOM_HSYNC_POLARITY)
                        mode->flags |= DRM_MODE_FLAG_NHSYNC;
                if (misc & ATOM_COMPOSITESYNC)
                        mode->flags |= DRM_MODE_FLAG_CSYNC;
                if (misc & ATOM_INTERLACE)
                        mode->flags |= DRM_MODE_FLAG_INTERLACE;
                if (misc & ATOM_DOUBLE_CLOCK_MODE)
                        mode->flags |= DRM_MODE_FLAG_DBLSCAN;

                mode->crtc_clock = mode->clock =
                        le16_to_cpu(tv_info->aModeTimings[index].usPixelClock) * 10;

                if (index == 1) {
                        /* PAL timings appear to have wrong values for totals */
                        mode->crtc_htotal -= 1;
                        mode->crtc_vtotal -= 1;
                }
                break;
        case 2:
                tv_info_v1_2 = (ATOM_ANALOG_TV_INFO_V1_2 *)(mode_info->atom_context->bios + data_offset);
                if (index >= MAX_SUPPORTED_TV_TIMING_V1_2)
                        return false;

                dtd_timings = &tv_info_v1_2->aModeTimings[index];
                mode->crtc_htotal = le16_to_cpu(dtd_timings->usHActive) +
                        le16_to_cpu(dtd_timings->usHBlanking_Time);
                mode->crtc_hdisplay = le16_to_cpu(dtd_timings->usHActive);
                mode->crtc_hsync_start = le16_to_cpu(dtd_timings->usHActive) +
                        le16_to_cpu(dtd_timings->usHSyncOffset);
                mode->crtc_hsync_end = mode->crtc_hsync_start +
                        le16_to_cpu(dtd_timings->usHSyncWidth);

                mode->crtc_vtotal = le16_to_cpu(dtd_timings->usVActive) +
                        le16_to_cpu(dtd_timings->usVBlanking_Time);
                mode->crtc_vdisplay = le16_to_cpu(dtd_timings->usVActive);
                mode->crtc_vsync_start = le16_to_cpu(dtd_timings->usVActive) +
                        le16_to_cpu(dtd_timings->usVSyncOffset);
                mode->crtc_vsync_end = mode->crtc_vsync_start +
                        le16_to_cpu(dtd_timings->usVSyncWidth);

                mode->flags = 0;
                misc = le16_to_cpu(dtd_timings->susModeMiscInfo.usAccess);
                if (misc & ATOM_VSYNC_POLARITY)
                        mode->flags |= DRM_MODE_FLAG_NVSYNC;
                if (misc & ATOM_HSYNC_POLARITY)
                        mode->flags |= DRM_MODE_FLAG_NHSYNC;
                if (misc & ATOM_COMPOSITESYNC)
                        mode->flags |= DRM_MODE_FLAG_CSYNC;
                if (misc & ATOM_INTERLACE)
                        mode->flags |= DRM_MODE_FLAG_INTERLACE;
                if (misc & ATOM_DOUBLE_CLOCK_MODE)
                        mode->flags |= DRM_MODE_FLAG_DBLSCAN;

                mode->crtc_clock = mode->clock =
                        le16_to_cpu(dtd_timings->usPixClk) * 10;
                break;
        }
        return true;
}

enum radeon_tv_std
radeon_atombios_get_tv_info(struct radeon_device *rdev)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, AnalogTV_Info);
        uint16_t data_offset;
        uint8_t frev, crev;
        struct _ATOM_ANALOG_TV_INFO *tv_info;
        enum radeon_tv_std tv_std = TV_STD_NTSC;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {

                tv_info = (struct _ATOM_ANALOG_TV_INFO *)
                        (mode_info->atom_context->bios + data_offset);

                switch (tv_info->ucTV_BootUpDefaultStandard) {
                case ATOM_TV_NTSC:
                        tv_std = TV_STD_NTSC;
                        DRM_DEBUG_KMS("Default TV standard: NTSC\n");
                        break;
                case ATOM_TV_NTSCJ:
                        tv_std = TV_STD_NTSC_J;
                        DRM_DEBUG_KMS("Default TV standard: NTSC-J\n");
                        break;
                case ATOM_TV_PAL:
                        tv_std = TV_STD_PAL;
                        DRM_DEBUG_KMS("Default TV standard: PAL\n");
                        break;
                case ATOM_TV_PALM:
                        tv_std = TV_STD_PAL_M;
                        DRM_DEBUG_KMS("Default TV standard: PAL-M\n");
                        break;
                case ATOM_TV_PALN:
                        tv_std = TV_STD_PAL_N;
                        DRM_DEBUG_KMS("Default TV standard: PAL-N\n");
                        break;
                case ATOM_TV_PALCN:
                        tv_std = TV_STD_PAL_CN;
                        DRM_DEBUG_KMS("Default TV standard: PAL-CN\n");
                        break;
                case ATOM_TV_PAL60:
                        tv_std = TV_STD_PAL_60;
                        DRM_DEBUG_KMS("Default TV standard: PAL-60\n");
                        break;
                case ATOM_TV_SECAM:
                        tv_std = TV_STD_SECAM;
                        DRM_DEBUG_KMS("Default TV standard: SECAM\n");
                        break;
                default:
                        tv_std = TV_STD_NTSC;
                        DRM_DEBUG_KMS("Unknown TV standard; defaulting to NTSC\n");
                        break;
                }
        }
        return tv_std;
}

struct radeon_encoder_tv_dac *
radeon_atombios_get_tv_dac_info(struct radeon_encoder *encoder)
{
        struct drm_device *dev = encoder->base.dev;
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, CompassionateData);
        uint16_t data_offset;
        struct _COMPASSIONATE_DATA *dac_info;
        uint8_t frev, crev;
        uint8_t bg, dac;
        struct radeon_encoder_tv_dac *tv_dac = NULL;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {

                dac_info = (struct _COMPASSIONATE_DATA *)
                        (mode_info->atom_context->bios + data_offset);

                tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL);

                if (!tv_dac)
                        return NULL;

                bg = dac_info->ucDAC2_CRT2_BG_Adjustment;
                dac = dac_info->ucDAC2_CRT2_DAC_Adjustment;
                tv_dac->ps2_tvdac_adj = (bg << 16) | (dac << 20);

                bg = dac_info->ucDAC2_PAL_BG_Adjustment;
                dac = dac_info->ucDAC2_PAL_DAC_Adjustment;
                tv_dac->pal_tvdac_adj = (bg << 16) | (dac << 20);

                bg = dac_info->ucDAC2_NTSC_BG_Adjustment;
                dac = dac_info->ucDAC2_NTSC_DAC_Adjustment;
                tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);

                tv_dac->tv_std = radeon_atombios_get_tv_info(rdev);
        }
        return tv_dac;
}

static const char *thermal_controller_names[] = {
        "NONE",
        "lm63",
        "adm1032",
        "adm1030",
        "max6649",
        "lm63", /* lm64 */
        "f75375",
        "asc7xxx",
};

static const char *pp_lib_thermal_controller_names[] = {
        "NONE",
        "lm63",
        "adm1032",
        "adm1030",
        "max6649",
        "lm63", /* lm64 */
        "f75375",
        "RV6xx",
        "RV770",
        "adt7473",
        "NONE",
        "External GPIO",
        "Evergreen",
        "emc2103",
        "Sumo",
        "Northern Islands",
        "Southern Islands",
        "lm96163",
        "Sea Islands",
};

union power_info {
        struct _ATOM_POWERPLAY_INFO info;
        struct _ATOM_POWERPLAY_INFO_V2 info_2;
        struct _ATOM_POWERPLAY_INFO_V3 info_3;
        struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
        struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
        struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
};

union pplib_clock_info {
        struct _ATOM_PPLIB_R600_CLOCK_INFO r600;
        struct _ATOM_PPLIB_RS780_CLOCK_INFO rs780;
        struct _ATOM_PPLIB_EVERGREEN_CLOCK_INFO evergreen;
        struct _ATOM_PPLIB_SUMO_CLOCK_INFO sumo;
        struct _ATOM_PPLIB_SI_CLOCK_INFO si;
        struct _ATOM_PPLIB_CI_CLOCK_INFO ci;
};

union pplib_power_state {
        struct _ATOM_PPLIB_STATE v1;
        struct _ATOM_PPLIB_STATE_V2 v2;
};

static void radeon_atombios_parse_misc_flags_1_3(struct radeon_device *rdev,
                                                 int state_index,
                                                 u32 misc, u32 misc2)
{
        rdev->pm.power_state[state_index].misc = misc;
        rdev->pm.power_state[state_index].misc2 = misc2;
        /* order matters! */
        if (misc & ATOM_PM_MISCINFO_POWER_SAVING_MODE)
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_POWERSAVE;
        if (misc & ATOM_PM_MISCINFO_DEFAULT_DC_STATE_ENTRY_TRUE)
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_BATTERY;
        if (misc & ATOM_PM_MISCINFO_DEFAULT_LOW_DC_STATE_ENTRY_TRUE)
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_BATTERY;
        if (misc & ATOM_PM_MISCINFO_LOAD_BALANCE_EN)
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_BALANCED;
        if (misc & ATOM_PM_MISCINFO_3D_ACCELERATION_EN) {
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_PERFORMANCE;
                rdev->pm.power_state[state_index].flags &=
                        ~RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
        }
        if (misc2 & ATOM_PM_MISCINFO2_SYSTEM_AC_LITE_MODE)
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_BALANCED;
        if (misc & ATOM_PM_MISCINFO_DRIVER_DEFAULT_MODE) {
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_DEFAULT;
                rdev->pm.default_power_state_index = state_index;
                rdev->pm.power_state[state_index].default_clock_mode =
                        &rdev->pm.power_state[state_index].clock_info[0];
        } else if (state_index == 0) {
                rdev->pm.power_state[state_index].clock_info[0].flags |=
                        RADEON_PM_MODE_NO_DISPLAY;
        }
}

static int radeon_atombios_parse_power_table_1_3(struct radeon_device *rdev)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        u32 misc, misc2 = 0;
        int num_modes = 0, i;
        int state_index = 0;
        struct radeon_i2c_bus_rec i2c_bus;
        union power_info *power_info;
        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
        u16 data_offset;
        u8 frev, crev;

        if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset))
                return state_index;
        power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);

        /* add the i2c bus for thermal/fan chip */
        if ((power_info->info.ucOverdriveThermalController > 0) &&
            (power_info->info.ucOverdriveThermalController < ARRAY_SIZE(thermal_controller_names))) {
                DRM_INFO("Possible %s thermal controller at 0x%02x\n",
                         thermal_controller_names[power_info->info.ucOverdriveThermalController],
                         power_info->info.ucOverdriveControllerAddress >> 1);
                i2c_bus = radeon_lookup_i2c_gpio(rdev, power_info->info.ucOverdriveI2cLine);
                rdev->pm.i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
#ifdef notyet
                if (rdev->pm.i2c_bus) {
                        struct i2c_board_info info = { };
                        const char *name = thermal_controller_names[power_info->info.
                                                                    ucOverdriveThermalController];
                        info.addr = power_info->info.ucOverdriveControllerAddress >> 1;
                        strscpy(info.type, name, sizeof(info.type));
                        i2c_new_client_device(&rdev->pm.i2c_bus->adapter, &info);
                }
#endif
        }
        num_modes = power_info->info.ucNumOfPowerModeEntries;
        if (num_modes > ATOM_MAX_NUMBEROF_POWER_BLOCK)
                num_modes = ATOM_MAX_NUMBEROF_POWER_BLOCK;
        if (num_modes == 0)
                return state_index;
        rdev->pm.power_state = kcalloc(num_modes,
                                       sizeof(struct radeon_power_state),
                                       GFP_KERNEL);
        if (!rdev->pm.power_state)
                return state_index;
        /* last mode is usually default, array is low to high */
        for (i = 0; i < num_modes; i++) {
                /* avoid memory leaks from invalid modes or unknown frev. */
                if (!rdev->pm.power_state[state_index].clock_info) {
                        rdev->pm.power_state[state_index].clock_info =
                                kzalloc(sizeof(struct radeon_pm_clock_info),
                                        GFP_KERNEL);
                }
                if (!rdev->pm.power_state[state_index].clock_info)
                        goto out;
                rdev->pm.power_state[state_index].num_clock_modes = 1;
                rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
                switch (frev) {
                case 1:
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                le16_to_cpu(power_info->info.asPowerPlayInfo[i].usMemoryClock);
                        rdev->pm.power_state[state_index].clock_info[0].sclk =
                                le16_to_cpu(power_info->info.asPowerPlayInfo[i].usEngineClock);
                        /* skip invalid modes */
                        if ((rdev->pm.power_state[state_index].clock_info[0].mclk == 0) ||
                            (rdev->pm.power_state[state_index].clock_info[0].sclk == 0))
                                continue;
                        rdev->pm.power_state[state_index].pcie_lanes =
                                power_info->info.asPowerPlayInfo[i].ucNumPciELanes;
                        misc = le32_to_cpu(power_info->info.asPowerPlayInfo[i].ulMiscInfo);
                        if ((misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) ||
                            (misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_ACTIVE_HIGH)) {
                                rdev->pm.power_state[state_index].clock_info[0].voltage.type =
                                        VOLTAGE_GPIO;
                                rdev->pm.power_state[state_index].clock_info[0].voltage.gpio =
                                        radeon_atombios_lookup_gpio(rdev,
                                                           power_info->info.asPowerPlayInfo[i].ucVoltageDropIndex);
                                if (misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_ACTIVE_HIGH)
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
                                                true;
                                else
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
                                                false;
                        } else if (misc & ATOM_PM_MISCINFO_PROGRAM_VOLTAGE) {
                                rdev->pm.power_state[state_index].clock_info[0].voltage.type =
                                        VOLTAGE_VDDC;
                                rdev->pm.power_state[state_index].clock_info[0].voltage.vddc_id =
                                        power_info->info.asPowerPlayInfo[i].ucVoltageDropIndex;
                        }
                        rdev->pm.power_state[state_index].flags = RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
                        radeon_atombios_parse_misc_flags_1_3(rdev, state_index, misc, 0);
                        state_index++;
                        break;
                case 2:
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                le32_to_cpu(power_info->info_2.asPowerPlayInfo[i].ulMemoryClock);
                        rdev->pm.power_state[state_index].clock_info[0].sclk =
                                le32_to_cpu(power_info->info_2.asPowerPlayInfo[i].ulEngineClock);
                        /* skip invalid modes */
                        if ((rdev->pm.power_state[state_index].clock_info[0].mclk == 0) ||
                            (rdev->pm.power_state[state_index].clock_info[0].sclk == 0))
                                continue;
                        rdev->pm.power_state[state_index].pcie_lanes =
                                power_info->info_2.asPowerPlayInfo[i].ucNumPciELanes;
                        misc = le32_to_cpu(power_info->info_2.asPowerPlayInfo[i].ulMiscInfo);
                        misc2 = le32_to_cpu(power_info->info_2.asPowerPlayInfo[i].ulMiscInfo2);
                        if ((misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) ||
                            (misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_ACTIVE_HIGH)) {
                                rdev->pm.power_state[state_index].clock_info[0].voltage.type =
                                        VOLTAGE_GPIO;
                                rdev->pm.power_state[state_index].clock_info[0].voltage.gpio =
                                        radeon_atombios_lookup_gpio(rdev,
                                                           power_info->info_2.asPowerPlayInfo[i].ucVoltageDropIndex);
                                if (misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_ACTIVE_HIGH)
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
                                                true;
                                else
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
                                                false;
                        } else if (misc & ATOM_PM_MISCINFO_PROGRAM_VOLTAGE) {
                                rdev->pm.power_state[state_index].clock_info[0].voltage.type =
                                        VOLTAGE_VDDC;
                                rdev->pm.power_state[state_index].clock_info[0].voltage.vddc_id =
                                        power_info->info_2.asPowerPlayInfo[i].ucVoltageDropIndex;
                        }
                        rdev->pm.power_state[state_index].flags = RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
                        radeon_atombios_parse_misc_flags_1_3(rdev, state_index, misc, misc2);
                        state_index++;
                        break;
                case 3:
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                le32_to_cpu(power_info->info_3.asPowerPlayInfo[i].ulMemoryClock);
                        rdev->pm.power_state[state_index].clock_info[0].sclk =
                                le32_to_cpu(power_info->info_3.asPowerPlayInfo[i].ulEngineClock);
                        /* skip invalid modes */
                        if ((rdev->pm.power_state[state_index].clock_info[0].mclk == 0) ||
                            (rdev->pm.power_state[state_index].clock_info[0].sclk == 0))
                                continue;
                        rdev->pm.power_state[state_index].pcie_lanes =
                                power_info->info_3.asPowerPlayInfo[i].ucNumPciELanes;
                        misc = le32_to_cpu(power_info->info_3.asPowerPlayInfo[i].ulMiscInfo);
                        misc2 = le32_to_cpu(power_info->info_3.asPowerPlayInfo[i].ulMiscInfo2);
                        if ((misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) ||
                            (misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_ACTIVE_HIGH)) {
                                rdev->pm.power_state[state_index].clock_info[0].voltage.type =
                                        VOLTAGE_GPIO;
                                rdev->pm.power_state[state_index].clock_info[0].voltage.gpio =
                                        radeon_atombios_lookup_gpio(rdev,
                                                           power_info->info_3.asPowerPlayInfo[i].ucVoltageDropIndex);
                                if (misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_ACTIVE_HIGH)
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
                                                true;
                                else
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
                                                false;
                        } else if (misc & ATOM_PM_MISCINFO_PROGRAM_VOLTAGE) {
                                rdev->pm.power_state[state_index].clock_info[0].voltage.type =
                                        VOLTAGE_VDDC;
                                rdev->pm.power_state[state_index].clock_info[0].voltage.vddc_id =
                                        power_info->info_3.asPowerPlayInfo[i].ucVoltageDropIndex;
                                if (misc2 & ATOM_PM_MISCINFO2_VDDCI_DYNAMIC_VOLTAGE_EN) {
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.vddci_enabled =
                                                true;
                                        rdev->pm.power_state[state_index].clock_info[0].voltage.vddci_id =
                                                power_info->info_3.asPowerPlayInfo[i].ucVDDCI_VoltageDropIndex;
                                }
                        }
                        rdev->pm.power_state[state_index].flags = RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
                        radeon_atombios_parse_misc_flags_1_3(rdev, state_index, misc, misc2);
                        state_index++;
                        break;
                }
        }
out:
        /* free any unused clock_info allocation. */
        if (state_index && state_index < num_modes) {
                kfree(rdev->pm.power_state[state_index].clock_info);
                rdev->pm.power_state[state_index].clock_info = NULL;
        }

        /* last mode is usually default */
        if (state_index && rdev->pm.default_power_state_index == -1) {
                rdev->pm.power_state[state_index - 1].type =
                        POWER_STATE_TYPE_DEFAULT;
                rdev->pm.default_power_state_index = state_index - 1;
                rdev->pm.power_state[state_index - 1].default_clock_mode =
                        &rdev->pm.power_state[state_index - 1].clock_info[0];
                rdev->pm.power_state[state_index - 1].flags &=
                        ~RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
                rdev->pm.power_state[state_index - 1].misc = 0;
                rdev->pm.power_state[state_index - 1].misc2 = 0;
        }
        return state_index;
}

static void radeon_atombios_add_pplib_thermal_controller(struct radeon_device *rdev,
                                                         ATOM_PPLIB_THERMALCONTROLLER *controller)
{
        struct radeon_i2c_bus_rec i2c_bus;

        /* add the i2c bus for thermal/fan chip */
        if (controller->ucType > 0) {
                if (controller->ucFanParameters & ATOM_PP_FANPARAMETERS_NOFAN)
                        rdev->pm.no_fan = true;
                rdev->pm.fan_pulses_per_revolution =
                        controller->ucFanParameters & ATOM_PP_FANPARAMETERS_TACHOMETER_PULSES_PER_REVOLUTION_MASK;
                if (rdev->pm.fan_pulses_per_revolution) {
                        rdev->pm.fan_min_rpm = controller->ucFanMinRPM;
                        rdev->pm.fan_max_rpm = controller->ucFanMaxRPM;
                }
                if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV6xx) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_RV6XX;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV770) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_RV770;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_EVERGREEN) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_EVERGREEN;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SUMO) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_SUMO;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_NISLANDS) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_NI;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SISLANDS) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_SI;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_CISLANDS) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_CI;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_KAVERI) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_KV;
                } else if (controller->ucType ==
                           ATOM_PP_THERMALCONTROLLER_EXTERNAL_GPIO) {
                        DRM_INFO("External GPIO thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL_GPIO;
                } else if (controller->ucType ==
                           ATOM_PP_THERMALCONTROLLER_ADT7473_WITH_INTERNAL) {
                        DRM_INFO("ADT7473 with internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_ADT7473_WITH_INTERNAL;
                } else if (controller->ucType ==
                           ATOM_PP_THERMALCONTROLLER_EMC2103_WITH_INTERNAL) {
                        DRM_INFO("EMC2103 with internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_EMC2103_WITH_INTERNAL;
                } else if (controller->ucType < ARRAY_SIZE(pp_lib_thermal_controller_names)) {
                        DRM_INFO("Possible %s thermal controller at 0x%02x %s fan control\n",
                                 pp_lib_thermal_controller_names[controller->ucType],
                                 controller->ucI2cAddress >> 1,
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        rdev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL;
                        i2c_bus = radeon_lookup_i2c_gpio(rdev, controller->ucI2cLine);
                        rdev->pm.i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
#ifdef notyet
                        if (rdev->pm.i2c_bus) {
                                struct i2c_board_info info = { };
                                const char *name = pp_lib_thermal_controller_names[controller->ucType];
                                info.addr = controller->ucI2cAddress >> 1;
                                strscpy(info.type, name, sizeof(info.type));
                                i2c_new_client_device(&rdev->pm.i2c_bus->adapter, &info);
                        }
#endif
                } else {
                        DRM_INFO("Unknown thermal controller type %d at 0x%02x %s fan control\n",
                                 controller->ucType,
                                 controller->ucI2cAddress >> 1,
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                }
        }
}

void radeon_atombios_get_default_voltages(struct radeon_device *rdev,
                                          u16 *vddc, u16 *vddci, u16 *mvdd)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
        u8 frev, crev;
        u16 data_offset;
        union firmware_info *firmware_info;

        *vddc = 0;
        *vddci = 0;
        *mvdd = 0;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {
                firmware_info =
                        (union firmware_info *)(mode_info->atom_context->bios +
                                                data_offset);
                *vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage);
                if ((frev == 2) && (crev >= 2)) {
                        *vddci = le16_to_cpu(firmware_info->info_22.usBootUpVDDCIVoltage);
                        *mvdd = le16_to_cpu(firmware_info->info_22.usBootUpMVDDCVoltage);
                }
        }
}

static void radeon_atombios_parse_pplib_non_clock_info(struct radeon_device *rdev,
                                                       int state_index, int mode_index,
                                                       struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info)
{
        int j;
        u32 misc = le32_to_cpu(non_clock_info->ulCapsAndSettings);
        u32 misc2 = le16_to_cpu(non_clock_info->usClassification);
        u16 vddc, vddci, mvdd;

        radeon_atombios_get_default_voltages(rdev, &vddc, &vddci, &mvdd);

        rdev->pm.power_state[state_index].misc = misc;
        rdev->pm.power_state[state_index].misc2 = misc2;
        rdev->pm.power_state[state_index].pcie_lanes =
                ((misc & ATOM_PPLIB_PCIE_LINK_WIDTH_MASK) >>
                 ATOM_PPLIB_PCIE_LINK_WIDTH_SHIFT) + 1;
        switch (misc2 & ATOM_PPLIB_CLASSIFICATION_UI_MASK) {
        case ATOM_PPLIB_CLASSIFICATION_UI_BATTERY:
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_BATTERY;
                break;
        case ATOM_PPLIB_CLASSIFICATION_UI_BALANCED:
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_BALANCED;
                break;
        case ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE:
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_PERFORMANCE;
                break;
        case ATOM_PPLIB_CLASSIFICATION_UI_NONE:
                if (misc2 & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
                        rdev->pm.power_state[state_index].type =
                                POWER_STATE_TYPE_PERFORMANCE;
                break;
        }
        rdev->pm.power_state[state_index].flags = 0;
        if (misc & ATOM_PPLIB_SINGLE_DISPLAY_ONLY)
                rdev->pm.power_state[state_index].flags |=
                        RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
        if (misc2 & ATOM_PPLIB_CLASSIFICATION_BOOT) {
                rdev->pm.power_state[state_index].type =
                        POWER_STATE_TYPE_DEFAULT;
                rdev->pm.default_power_state_index = state_index;
                rdev->pm.power_state[state_index].default_clock_mode =
                        &rdev->pm.power_state[state_index].clock_info[mode_index - 1];
                if ((rdev->family >= CHIP_BARTS) && !(rdev->flags & RADEON_IS_IGP)) {
                        /* NI chips post without MC ucode, so default clocks are strobe mode only */
                        rdev->pm.default_sclk = rdev->pm.power_state[state_index].clock_info[0].sclk;
                        rdev->pm.default_mclk = rdev->pm.power_state[state_index].clock_info[0].mclk;
                        rdev->pm.default_vddc = rdev->pm.power_state[state_index].clock_info[0].voltage.voltage;
                        rdev->pm.default_vddci = rdev->pm.power_state[state_index].clock_info[0].voltage.vddci;
                } else {
                        u16 max_vddci = 0;

                        if (ASIC_IS_DCE4(rdev))
                                radeon_atom_get_max_voltage(rdev,
                                                            SET_VOLTAGE_TYPE_ASIC_VDDCI,
                                                            &max_vddci);
                        /* patch the table values with the default sclk/mclk from firmware info */
                        for (j = 0; j < mode_index; j++) {
                                rdev->pm.power_state[state_index].clock_info[j].mclk =
                                        rdev->clock.default_mclk;
                                rdev->pm.power_state[state_index].clock_info[j].sclk =
                                        rdev->clock.default_sclk;
                                if (vddc)
                                        rdev->pm.power_state[state_index].clock_info[j].voltage.voltage =
                                                vddc;
                                if (max_vddci)
                                        rdev->pm.power_state[state_index].clock_info[j].voltage.vddci =
                                                max_vddci;
                        }
                }
        }
}

static bool radeon_atombios_parse_pplib_clock_info(struct radeon_device *rdev,
                                                   int state_index, int mode_index,
                                                   union pplib_clock_info *clock_info)
{
        u32 sclk, mclk;
        u16 vddc;

        if (rdev->flags & RADEON_IS_IGP) {
                if (rdev->family >= CHIP_PALM) {
                        sclk = le16_to_cpu(clock_info->sumo.usEngineClockLow);
                        sclk |= clock_info->sumo.ucEngineClockHigh << 16;
                        rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
                } else {
                        sclk = le16_to_cpu(clock_info->rs780.usLowEngineClockLow);
                        sclk |= clock_info->rs780.ucLowEngineClockHigh << 16;
                        rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
                }
        } else if (rdev->family >= CHIP_BONAIRE) {
                sclk = le16_to_cpu(clock_info->ci.usEngineClockLow);
                sclk |= clock_info->ci.ucEngineClockHigh << 16;
                mclk = le16_to_cpu(clock_info->ci.usMemoryClockLow);
                mclk |= clock_info->ci.ucMemoryClockHigh << 16;
                rdev->pm.power_state[state_index].clock_info[mode_index].mclk = mclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.type =
                        VOLTAGE_NONE;
        } else if (rdev->family >= CHIP_TAHITI) {
                sclk = le16_to_cpu(clock_info->si.usEngineClockLow);
                sclk |= clock_info->si.ucEngineClockHigh << 16;
                mclk = le16_to_cpu(clock_info->si.usMemoryClockLow);
                mclk |= clock_info->si.ucMemoryClockHigh << 16;
                rdev->pm.power_state[state_index].clock_info[mode_index].mclk = mclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.type =
                        VOLTAGE_SW;
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage =
                        le16_to_cpu(clock_info->si.usVDDC);
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.vddci =
                        le16_to_cpu(clock_info->si.usVDDCI);
        } else if (rdev->family >= CHIP_CEDAR) {
                sclk = le16_to_cpu(clock_info->evergreen.usEngineClockLow);
                sclk |= clock_info->evergreen.ucEngineClockHigh << 16;
                mclk = le16_to_cpu(clock_info->evergreen.usMemoryClockLow);
                mclk |= clock_info->evergreen.ucMemoryClockHigh << 16;
                rdev->pm.power_state[state_index].clock_info[mode_index].mclk = mclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.type =
                        VOLTAGE_SW;
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage =
                        le16_to_cpu(clock_info->evergreen.usVDDC);
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.vddci =
                        le16_to_cpu(clock_info->evergreen.usVDDCI);
        } else {
                sclk = le16_to_cpu(clock_info->r600.usEngineClockLow);
                sclk |= clock_info->r600.ucEngineClockHigh << 16;
                mclk = le16_to_cpu(clock_info->r600.usMemoryClockLow);
                mclk |= clock_info->r600.ucMemoryClockHigh << 16;
                rdev->pm.power_state[state_index].clock_info[mode_index].mclk = mclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.type =
                        VOLTAGE_SW;
                rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage =
                        le16_to_cpu(clock_info->r600.usVDDC);
        }

        /* patch up vddc if necessary */
        switch (rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage) {
        case ATOM_VIRTUAL_VOLTAGE_ID0:
        case ATOM_VIRTUAL_VOLTAGE_ID1:
        case ATOM_VIRTUAL_VOLTAGE_ID2:
        case ATOM_VIRTUAL_VOLTAGE_ID3:
        case ATOM_VIRTUAL_VOLTAGE_ID4:
        case ATOM_VIRTUAL_VOLTAGE_ID5:
        case ATOM_VIRTUAL_VOLTAGE_ID6:
        case ATOM_VIRTUAL_VOLTAGE_ID7:
                if (radeon_atom_get_max_vddc(rdev, VOLTAGE_TYPE_VDDC,
                                             rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage,
                                             &vddc) == 0)
                        rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage = vddc;
                break;
        default:
                break;
        }

        if (rdev->flags & RADEON_IS_IGP) {
                /* skip invalid modes */
                if (rdev->pm.power_state[state_index].clock_info[mode_index].sclk == 0)
                        return false;
        } else {
                /* skip invalid modes */
                if ((rdev->pm.power_state[state_index].clock_info[mode_index].mclk == 0) ||
                    (rdev->pm.power_state[state_index].clock_info[mode_index].sclk == 0))
                        return false;
        }
        return true;
}

static int radeon_atombios_parse_power_table_4_5(struct radeon_device *rdev)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info;
        union pplib_power_state *power_state;
        int i, j;
        int state_index = 0, mode_index = 0;
        union pplib_clock_info *clock_info;
        bool valid;
        union power_info *power_info;
        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
        u16 data_offset;
        u8 frev, crev;

        if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset))
                return state_index;
        power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);

        radeon_atombios_add_pplib_thermal_controller(rdev, &power_info->pplib.sThermalController);
        if (power_info->pplib.ucNumStates == 0)
                return state_index;
        rdev->pm.power_state = kcalloc(power_info->pplib.ucNumStates,
                                       sizeof(struct radeon_power_state),
                                       GFP_KERNEL);
        if (!rdev->pm.power_state)
                return state_index;
        /* first mode is usually default, followed by low to high */
        for (i = 0; i < power_info->pplib.ucNumStates; i++) {
                mode_index = 0;
                power_state = (union pplib_power_state *)
                        (mode_info->atom_context->bios + data_offset +
                         le16_to_cpu(power_info->pplib.usStateArrayOffset) +
                         i * power_info->pplib.ucStateEntrySize);
                non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
                        (mode_info->atom_context->bios + data_offset +
                         le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset) +
                         (power_state->v1.ucNonClockStateIndex *
                          power_info->pplib.ucNonClockSize));
                rdev->pm.power_state[i].clock_info =
                        kcalloc((power_info->pplib.ucStateEntrySize - 1) ?
                                (power_info->pplib.ucStateEntrySize - 1) : 1,
                                sizeof(struct radeon_pm_clock_info),
                                GFP_KERNEL);
                if (!rdev->pm.power_state[i].clock_info)
                        return state_index;
                if (power_info->pplib.ucStateEntrySize - 1) {
                        for (j = 0; j < (power_info->pplib.ucStateEntrySize - 1); j++) {
                                clock_info = (union pplib_clock_info *)
                                        (mode_info->atom_context->bios + data_offset +
                                         le16_to_cpu(power_info->pplib.usClockInfoArrayOffset) +
                                         (power_state->v1.ucClockStateIndices[j] *
                                          power_info->pplib.ucClockInfoSize));
                                valid = radeon_atombios_parse_pplib_clock_info(rdev,
                                                                               state_index, mode_index,
                                                                               clock_info);
                                if (valid)
                                        mode_index++;
                        }
                } else {
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                rdev->clock.default_mclk;
                        rdev->pm.power_state[state_index].clock_info[0].sclk =
                                rdev->clock.default_sclk;
                        mode_index++;
                }
                rdev->pm.power_state[state_index].num_clock_modes = mode_index;
                if (mode_index) {
                        radeon_atombios_parse_pplib_non_clock_info(rdev, state_index, mode_index,
                                                                   non_clock_info);
                        state_index++;
                }
        }
        /* if multiple clock modes, mark the lowest as no display */
        for (i = 0; i < state_index; i++) {
                if (rdev->pm.power_state[i].num_clock_modes > 1)
                        rdev->pm.power_state[i].clock_info[0].flags |=
                                RADEON_PM_MODE_NO_DISPLAY;
        }
        /* first mode is usually default */
        if (rdev->pm.default_power_state_index == -1) {
                rdev->pm.power_state[0].type =
                        POWER_STATE_TYPE_DEFAULT;
                rdev->pm.default_power_state_index = 0;
                rdev->pm.power_state[0].default_clock_mode =
                        &rdev->pm.power_state[0].clock_info[0];
        }
        return state_index;
}

static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info;
        union pplib_power_state *power_state;
        int i, j, non_clock_array_index, clock_array_index;
        int state_index = 0, mode_index = 0;
        union pplib_clock_info *clock_info;
        struct _StateArray *state_array;
        struct _ClockInfoArray *clock_info_array;
        struct _NonClockInfoArray *non_clock_info_array;
        bool valid;
        union power_info *power_info;
        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
        u16 data_offset;
        u8 frev, crev;
        u8 *power_state_offset;

        if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset))
                return state_index;
        power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);

        radeon_atombios_add_pplib_thermal_controller(rdev, &power_info->pplib.sThermalController);
        state_array = (struct _StateArray *)
                (mode_info->atom_context->bios + data_offset +
                 le16_to_cpu(power_info->pplib.usStateArrayOffset));
        clock_info_array = (struct _ClockInfoArray *)
                (mode_info->atom_context->bios + data_offset +
                 le16_to_cpu(power_info->pplib.usClockInfoArrayOffset));
        non_clock_info_array = (struct _NonClockInfoArray *)
                (mode_info->atom_context->bios + data_offset +
                 le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset));
        if (state_array->ucNumEntries == 0)
                return state_index;
        rdev->pm.power_state = kcalloc(state_array->ucNumEntries,
                                       sizeof(struct radeon_power_state),
                                       GFP_KERNEL);
        if (!rdev->pm.power_state)
                return state_index;
        power_state_offset = (u8 *)state_array->states;
        for (i = 0; i < state_array->ucNumEntries; i++) {
                mode_index = 0;
                power_state = (union pplib_power_state *)power_state_offset;
                non_clock_array_index = power_state->v2.nonClockInfoIndex;
                non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
                        &non_clock_info_array->nonClockInfo[non_clock_array_index];
                rdev->pm.power_state[i].clock_info =
                        kcalloc(power_state->v2.ucNumDPMLevels ?
                                power_state->v2.ucNumDPMLevels : 1,
                                sizeof(struct radeon_pm_clock_info),
                                GFP_KERNEL);
                if (!rdev->pm.power_state[i].clock_info)
                        return state_index;
                if (power_state->v2.ucNumDPMLevels) {
                        for (j = 0; j < power_state->v2.ucNumDPMLevels; j++) {
                                clock_array_index = power_state->v2.clockInfoIndex[j];
                                clock_info = (union pplib_clock_info *)
                                        &clock_info_array->clockInfo[clock_array_index * clock_info_array->ucEntrySize];
                                valid = radeon_atombios_parse_pplib_clock_info(rdev,
                                                                               state_index, mode_index,
                                                                               clock_info);
                                if (valid)
                                        mode_index++;
                        }
                } else {
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                rdev->clock.default_mclk;
                        rdev->pm.power_state[state_index].clock_info[0].sclk =
                                rdev->clock.default_sclk;
                        mode_index++;
                }
                rdev->pm.power_state[state_index].num_clock_modes = mode_index;
                if (mode_index) {
                        radeon_atombios_parse_pplib_non_clock_info(rdev, state_index, mode_index,
                                                                   non_clock_info);
                        state_index++;
                }
                power_state_offset += 2 + power_state->v2.ucNumDPMLevels;
        }
        /* if multiple clock modes, mark the lowest as no display */
        for (i = 0; i < state_index; i++) {
                if (rdev->pm.power_state[i].num_clock_modes > 1)
                        rdev->pm.power_state[i].clock_info[0].flags |=
                                RADEON_PM_MODE_NO_DISPLAY;
        }
        /* first mode is usually default */
        if (rdev->pm.default_power_state_index == -1) {
                rdev->pm.power_state[0].type =
                        POWER_STATE_TYPE_DEFAULT;
                rdev->pm.default_power_state_index = 0;
                rdev->pm.power_state[0].default_clock_mode =
                        &rdev->pm.power_state[0].clock_info[0];
        }
        return state_index;
}

void radeon_atombios_get_power_modes(struct radeon_device *rdev)
{
        struct radeon_mode_info *mode_info = &rdev->mode_info;
        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
        u16 data_offset;
        u8 frev, crev;
        int state_index = 0;

        rdev->pm.default_power_state_index = -1;

        if (atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset)) {
                switch (frev) {
                case 1:
                case 2:
                case 3:
                        state_index = radeon_atombios_parse_power_table_1_3(rdev);
                        break;
                case 4:
                case 5:
                        state_index = radeon_atombios_parse_power_table_4_5(rdev);
                        break;
                case 6:
                        state_index = radeon_atombios_parse_power_table_6(rdev);
                        break;
                default:
                        break;
                }
        }

        if (state_index == 0) {
                rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state), GFP_KERNEL);
                if (rdev->pm.power_state) {
                        rdev->pm.power_state[0].clock_info =
                                kcalloc(1,
                                        sizeof(struct radeon_pm_clock_info),
                                        GFP_KERNEL);
                        if (rdev->pm.power_state[0].clock_info) {
                                /* add the default mode */
                                rdev->pm.power_state[state_index].type =
                                        POWER_STATE_TYPE_DEFAULT;
                                rdev->pm.power_state[state_index].num_clock_modes = 1;
                                rdev->pm.power_state[state_index].clock_info[0].mclk = rdev->clock.default_mclk;
                                rdev->pm.power_state[state_index].clock_info[0].sclk = rdev->clock.default_sclk;
                                rdev->pm.power_state[state_index].default_clock_mode =
                                        &rdev->pm.power_state[state_index].clock_info[0];
                                rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
                                rdev->pm.power_state[state_index].pcie_lanes = 16;
                                rdev->pm.default_power_state_index = state_index;
                                rdev->pm.power_state[state_index].flags = 0;
                                state_index++;
                        }
                }
        }

        rdev->pm.num_power_states = state_index;

        rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
        rdev->pm.current_clock_mode_index = 0;
        if (rdev->pm.default_power_state_index >= 0)
                rdev->pm.current_vddc =
                        rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
        else
                rdev->pm.current_vddc = 0;
}

union get_clock_dividers {
        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
        struct _COMPUTE_GPU_CLOCK_INPUT_PARAMETERS_V1_6 v6_in;
        struct _COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 v6_out;
};

int radeon_atom_get_clock_dividers(struct radeon_device *rdev,
                                   u8 clock_type,
                                   u32 clock,
                                   bool strobe_mode,
                                   struct atom_clock_dividers *dividers)
{
        union get_clock_dividers args;
        int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
        u8 frev, crev;

        memset(&args, 0, sizeof(args));
        memset(dividers, 0, sizeof(struct atom_clock_dividers));

        if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
                return -EINVAL;

        switch (crev) {
        case 1:
                /* r4xx, r5xx */
                args.v1.ucAction = clock_type;
                args.v1.ulClock = cpu_to_le32(clock);   /* 10 khz */

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                dividers->post_div = args.v1.ucPostDiv;
                dividers->fb_div = args.v1.ucFbDiv;
                dividers->enable_post_div = true;
                break;
        case 2:
        case 3:
        case 5:
                /* r6xx, r7xx, evergreen, ni, si */
                if (rdev->family <= CHIP_RV770) {
                        args.v2.ucAction = clock_type;
                        args.v2.ulClock = cpu_to_le32(clock);   /* 10 khz */

                        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                        dividers->post_div = args.v2.ucPostDiv;
                        dividers->fb_div = le16_to_cpu(args.v2.usFbDiv);
                        dividers->ref_div = args.v2.ucAction;
                        if (rdev->family == CHIP_RV770) {
                                dividers->enable_post_div = (le32_to_cpu(args.v2.ulClock) & (1 << 24)) ?
                                        true : false;
                                dividers->vco_mode = (le32_to_cpu(args.v2.ulClock) & (1 << 25)) ? 1 : 0;
                        } else
                                dividers->enable_post_div = (dividers->fb_div & 1) ? true : false;
                } else {
                        if (clock_type == COMPUTE_ENGINE_PLL_PARAM) {
                                args.v3.ulClockParams = cpu_to_le32((clock_type << 24) | clock);

                                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                                dividers->post_div = args.v3.ucPostDiv;
                                dividers->enable_post_div = (args.v3.ucCntlFlag &
                                                             ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
                                dividers->enable_dithen = (args.v3.ucCntlFlag &
                                                           ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
                                dividers->whole_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
                                dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
                                dividers->ref_div = args.v3.ucRefDiv;
                                dividers->vco_mode = (args.v3.ucCntlFlag &
                                                      ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
                        } else {
                                /* for SI we use ComputeMemoryClockParam for memory plls */
                                if (rdev->family >= CHIP_TAHITI)
                                        return -EINVAL;
                                args.v5.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
                                if (strobe_mode)
                                        args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;

                                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                                dividers->post_div = args.v5.ucPostDiv;
                                dividers->enable_post_div = (args.v5.ucCntlFlag &
                                                             ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
                                dividers->enable_dithen = (args.v5.ucCntlFlag &
                                                           ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
                                dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
                                dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
                                dividers->ref_div = args.v5.ucRefDiv;
                                dividers->vco_mode = (args.v5.ucCntlFlag &
                                                      ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
                        }
                }
                break;
        case 4:
                /* fusion */
                args.v4.ulClock = cpu_to_le32(clock);   /* 10 khz */

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
                dividers->real_clock = le32_to_cpu(args.v4.ulClock);
                break;
        case 6:
                /* CI */
                /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
                args.v6_in.ulClock.ulComputeClockFlag = clock_type;
                args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);    /* 10 khz */

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
                dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
                dividers->ref_div = args.v6_out.ucPllRefDiv;
                dividers->post_div = args.v6_out.ucPllPostDiv;
                dividers->flags = args.v6_out.ucPllCntlFlag;
                dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
                dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
                break;
        default:
                return -EINVAL;
        }
        return 0;
}

int radeon_atom_get_memory_pll_dividers(struct radeon_device *rdev,
                                        u32 clock,
                                        bool strobe_mode,
                                        struct atom_mpll_param *mpll_param)
{
        COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
        int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
        u8 frev, crev;

        memset(&args, 0, sizeof(args));
        memset(mpll_param, 0, sizeof(struct atom_mpll_param));

        if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
                return -EINVAL;

        switch (frev) {
        case 2:
                switch (crev) {
                case 1:
                        /* SI */
                        args.ulClock = cpu_to_le32(clock);      /* 10 khz */
                        args.ucInputFlag = 0;
                        if (strobe_mode)
                                args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;

                        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                        mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
                        mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
                        mpll_param->post_div = args.ucPostDiv;
                        mpll_param->dll_speed = args.ucDllSpeed;
                        mpll_param->bwcntl = args.ucBWCntl;
                        mpll_param->vco_mode =
                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
                        mpll_param->yclk_sel =
                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
                        mpll_param->qdr =
                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
                        mpll_param->half_rate =
                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
                        break;
                default:
                        return -EINVAL;
                }
                break;
        default:
                return -EINVAL;
        }
        return 0;
}

void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable)
{
        DYNAMIC_CLOCK_GATING_PS_ALLOCATION args;
        int index = GetIndexIntoMasterTable(COMMAND, DynamicClockGating);

        args.ucEnable = enable;

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
}

uint32_t radeon_atom_get_engine_clock(struct radeon_device *rdev)
{
        GET_ENGINE_CLOCK_PS_ALLOCATION args;
        int index = GetIndexIntoMasterTable(COMMAND, GetEngineClock);

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
        return le32_to_cpu(args.ulReturnEngineClock);
}

uint32_t radeon_atom_get_memory_clock(struct radeon_device *rdev)
{
        GET_MEMORY_CLOCK_PS_ALLOCATION args;
        int index = GetIndexIntoMasterTable(COMMAND, GetMemoryClock);

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
        return le32_to_cpu(args.ulReturnMemoryClock);
}

void radeon_atom_set_engine_clock(struct radeon_device *rdev,
                                  uint32_t eng_clock)
{
        SET_ENGINE_CLOCK_PS_ALLOCATION args;
        int index = GetIndexIntoMasterTable(COMMAND, SetEngineClock);

        args.ulTargetEngineClock = cpu_to_le32(eng_clock);      /* 10 khz */

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
}

void radeon_atom_set_memory_clock(struct radeon_device *rdev,
                                  uint32_t mem_clock)
{
        SET_MEMORY_CLOCK_PS_ALLOCATION args;
        int index = GetIndexIntoMasterTable(COMMAND, SetMemoryClock);

        if (rdev->flags & RADEON_IS_IGP)
                return;

        args.ulTargetMemoryClock = cpu_to_le32(mem_clock);      /* 10 khz */

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
}

void radeon_atom_set_engine_dram_timings(struct radeon_device *rdev,
                                         u32 eng_clock, u32 mem_clock)
{
        SET_ENGINE_CLOCK_PS_ALLOCATION args;
        int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
        u32 tmp;

        memset(&args, 0, sizeof(args));

        tmp = eng_clock & SET_CLOCK_FREQ_MASK;
        tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);

        args.ulTargetEngineClock = cpu_to_le32(tmp);
        if (mem_clock)
                args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
}

void radeon_atom_update_memory_dll(struct radeon_device *rdev,
                                   u32 mem_clock)
{
        u32 args;
        int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);

        args = cpu_to_le32(mem_clock);  /* 10 khz */

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
}

void radeon_atom_set_ac_timing(struct radeon_device *rdev,
                               u32 mem_clock)
{
        SET_MEMORY_CLOCK_PS_ALLOCATION args;
        int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
        u32 tmp = mem_clock | (COMPUTE_MEMORY_PLL_PARAM << 24);

        args.ulTargetMemoryClock = cpu_to_le32(tmp);    /* 10 khz */

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
}

union set_voltage {
        struct _SET_VOLTAGE_PS_ALLOCATION alloc;
        struct _SET_VOLTAGE_PARAMETERS v1;
        struct _SET_VOLTAGE_PARAMETERS_V2 v2;
        struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
};

void radeon_atom_set_voltage(struct radeon_device *rdev, u16 voltage_level, u8 voltage_type)
{
        union set_voltage args;
        int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
        u8 frev, crev, volt_index = voltage_level;

        if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
                return;

        /* 0xff01 is a flag rather then an actual voltage */
        if (voltage_level == 0xff01)
                return;

        switch (crev) {
        case 1:
                args.v1.ucVoltageType = voltage_type;
                args.v1.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_ALL_SOURCE;
                args.v1.ucVoltageIndex = volt_index;
                break;
        case 2:
                args.v2.ucVoltageType = voltage_type;
                args.v2.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_SET_VOLTAGE;
                args.v2.usVoltageLevel = cpu_to_le16(voltage_level);
                break;
        case 3:
                args.v3.ucVoltageType = voltage_type;
                args.v3.ucVoltageMode = ATOM_SET_VOLTAGE;
                args.v3.usVoltageLevel = cpu_to_le16(voltage_level);
                break;
        default:
                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                return;
        }

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));
}

int radeon_atom_get_max_vddc(struct radeon_device *rdev, u8 voltage_type,
                             u16 voltage_id, u16 *voltage)
{
        union set_voltage args;
        int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
        u8 frev, crev;

        if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
                return -EINVAL;

        switch (crev) {
        case 1:
                return -EINVAL;
        case 2:
                args.v2.ucVoltageType = SET_VOLTAGE_GET_MAX_VOLTAGE;
                args.v2.ucVoltageMode = 0;
                args.v2.usVoltageLevel = 0;

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                *voltage = le16_to_cpu(args.v2.usVoltageLevel);
                break;
        case 3:
                args.v3.ucVoltageType = voltage_type;
                args.v3.ucVoltageMode = ATOM_GET_VOLTAGE_LEVEL;
                args.v3.usVoltageLevel = cpu_to_le16(voltage_id);

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                *voltage = le16_to_cpu(args.v3.usVoltageLevel);
                break;
        default:
                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                return -EINVAL;
        }

        return 0;
}

int radeon_atom_get_leakage_vddc_based_on_leakage_idx(struct radeon_device *rdev,
                                                      u16 *voltage,
                                                      u16 leakage_idx)
{
        return radeon_atom_get_max_vddc(rdev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
}

int radeon_atom_get_leakage_id_from_vbios(struct radeon_device *rdev,
                                          u16 *leakage_id)
{
        union set_voltage args;
        int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
        u8 frev, crev;

        if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
                return -EINVAL;

        switch (crev) {
        case 3:
        case 4:
                args.v3.ucVoltageType = 0;
                args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
                args.v3.usVoltageLevel = 0;

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                *leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
                break;
        default:
                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                return -EINVAL;
        }

        return 0;
}

int radeon_atom_get_leakage_vddc_based_on_leakage_params(struct radeon_device *rdev,
                                                         u16 *vddc, u16 *vddci,
                                                         u16 virtual_voltage_id,
                                                         u16 vbios_voltage_id)
{
        int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
        u8 frev, crev;
        u16 data_offset, size;
        int i, j;
        ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
        u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;

        *vddc = 0;
        *vddci = 0;

        if (!atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                    &frev, &crev, &data_offset))
                return -EINVAL;

        profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
                (rdev->mode_info.atom_context->bios + data_offset);

        switch (frev) {
        case 1:
                return -EINVAL;
        case 2:
                switch (crev) {
                case 1:
                        if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
                                return -EINVAL;
                        leakage_bin = (u16 *)
                                (rdev->mode_info.atom_context->bios + data_offset +
                                 le16_to_cpu(profile->usLeakageBinArrayOffset));
                        vddc_id_buf = (u16 *)
                                (rdev->mode_info.atom_context->bios + data_offset +
                                 le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
                        vddc_buf = (u16 *)
                                (rdev->mode_info.atom_context->bios + data_offset +
                                 le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
                        vddci_id_buf = (u16 *)
                                (rdev->mode_info.atom_context->bios + data_offset +
                                 le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
                        vddci_buf = (u16 *)
                                (rdev->mode_info.atom_context->bios + data_offset +
                                 le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));

                        if (profile->ucElbVDDC_Num > 0) {
                                for (i = 0; i < profile->ucElbVDDC_Num; i++) {
                                        if (vddc_id_buf[i] == virtual_voltage_id) {
                                                for (j = 0; j < profile->ucLeakageBinNum; j++) {
                                                        if (vbios_voltage_id <= leakage_bin[j]) {
                                                                *vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
                                                                break;
                                                        }
                                                }
                                                break;
                                        }
                                }
                        }
                        if (profile->ucElbVDDCI_Num > 0) {
                                for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
                                        if (vddci_id_buf[i] == virtual_voltage_id) {
                                                for (j = 0; j < profile->ucLeakageBinNum; j++) {
                                                        if (vbios_voltage_id <= leakage_bin[j]) {
                                                                *vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
                                                                break;
                                                        }
                                                }
                                                break;
                                        }
                                }
                        }
                        break;
                default:
                        DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                        return -EINVAL;
                }
                break;
        default:
                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                return -EINVAL;
        }

        return 0;
}

union get_voltage_info {
        struct  _GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 in;
        struct  _GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 evv_out;
};

int radeon_atom_get_voltage_evv(struct radeon_device *rdev,
                                u16 virtual_voltage_id,
                                u16 *voltage)
{
        int index = GetIndexIntoMasterTable(COMMAND, GetVoltageInfo);
        u32 entry_id;
        u32 count = rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.count;
        union get_voltage_info args;

        for (entry_id = 0; entry_id < count; entry_id++) {
                if (rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].v ==
                    virtual_voltage_id)
                        break;
        }

        if (entry_id >= count)
                return -EINVAL;

        args.in.ucVoltageType = VOLTAGE_TYPE_VDDC;
        args.in.ucVoltageMode = ATOM_GET_VOLTAGE_EVV_VOLTAGE;
        args.in.usVoltageLevel = cpu_to_le16(virtual_voltage_id);
        args.in.ulSCLKFreq =
                cpu_to_le32(rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].clk);

        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

        *voltage = le16_to_cpu(args.evv_out.usVoltageLevel);

        return 0;
}

int radeon_atom_get_voltage_gpio_settings(struct radeon_device *rdev,
                                          u16 voltage_level, u8 voltage_type,
                                          u32 *gpio_value, u32 *gpio_mask)
{
        union set_voltage args;
        int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
        u8 frev, crev;

        if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
                return -EINVAL;

        switch (crev) {
        case 1:
                return -EINVAL;
        case 2:
                args.v2.ucVoltageType = voltage_type;
                args.v2.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_GET_GPIOMASK;
                args.v2.usVoltageLevel = cpu_to_le16(voltage_level);

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                *gpio_mask = le32_to_cpu(*(u32 *)&args.v2);

                args.v2.ucVoltageType = voltage_type;
                args.v2.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_GET_GPIOVAL;
                args.v2.usVoltageLevel = cpu_to_le16(voltage_level);

                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args, sizeof(args));

                *gpio_value = le32_to_cpu(*(u32 *)&args.v2);
                break;
        default:
                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                return -EINVAL;
        }

        return 0;
}

union voltage_object_info {
        struct _ATOM_VOLTAGE_OBJECT_INFO v1;
        struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
        struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
};

union voltage_object {
        struct _ATOM_VOLTAGE_OBJECT v1;
        struct _ATOM_VOLTAGE_OBJECT_V2 v2;
        union _ATOM_VOLTAGE_OBJECT_V3 v3;
};

static ATOM_VOLTAGE_OBJECT *atom_lookup_voltage_object_v1(ATOM_VOLTAGE_OBJECT_INFO *v1,
                                                          u8 voltage_type)
{
        u32 size = le16_to_cpu(v1->sHeader.usStructureSize);
        u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO, asVoltageObj[0]);
        u8 *start = (u8 *)v1;

        while (offset < size) {
                ATOM_VOLTAGE_OBJECT *vo = (ATOM_VOLTAGE_OBJECT *)(start + offset);
                if (vo->ucVoltageType == voltage_type)
                        return vo;
                offset += offsetof(ATOM_VOLTAGE_OBJECT, asFormula.ucVIDAdjustEntries) +
                        vo->asFormula.ucNumOfVoltageEntries;
        }
        return NULL;
}

static ATOM_VOLTAGE_OBJECT_V2 *atom_lookup_voltage_object_v2(ATOM_VOLTAGE_OBJECT_INFO_V2 *v2,
                                                             u8 voltage_type)
{
        u32 size = le16_to_cpu(v2->sHeader.usStructureSize);
        u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V2, asVoltageObj[0]);
        u8 *start = (u8 *)v2;

        while (offset < size) {
                ATOM_VOLTAGE_OBJECT_V2 *vo = (ATOM_VOLTAGE_OBJECT_V2 *)(start + offset);
                if (vo->ucVoltageType == voltage_type)
                        return vo;
                offset += offsetof(ATOM_VOLTAGE_OBJECT_V2, asFormula.asVIDAdjustEntries) +
                        (vo->asFormula.ucNumOfVoltageEntries * sizeof(VOLTAGE_LUT_ENTRY));
        }
        return NULL;
}

static ATOM_VOLTAGE_OBJECT_V3 *atom_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
                                                             u8 voltage_type, u8 voltage_mode)
{
        u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
        u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
        u8 *start = (u8 *)v3;

        while (offset < size) {
                ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
                if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
                    (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
                        return vo;
                offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
        }
        return NULL;
}

bool
radeon_atom_is_voltage_gpio(struct radeon_device *rdev,
                            u8 voltage_type, u8 voltage_mode)
{
        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
        u8 frev, crev;
        u16 data_offset, size;
        union voltage_object_info *voltage_info;
        union voltage_object *voltage_object = NULL;

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                voltage_info = (union voltage_object_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);

                switch (frev) {
                case 1:
                case 2:
                        switch (crev) {
                        case 1:
                                voltage_object = (union voltage_object *)
                                        atom_lookup_voltage_object_v1(&voltage_info->v1, voltage_type);
                                if (voltage_object &&
                                    (voltage_object->v1.asControl.ucVoltageControlId == VOLTAGE_CONTROLLED_BY_GPIO))
                                        return true;
                                break;
                        case 2:
                                voltage_object = (union voltage_object *)
                                        atom_lookup_voltage_object_v2(&voltage_info->v2, voltage_type);
                                if (voltage_object &&
                                    (voltage_object->v2.asControl.ucVoltageControlId == VOLTAGE_CONTROLLED_BY_GPIO))
                                        return true;
                                break;
                        default:
                                DRM_ERROR("unknown voltage object table\n");
                                return false;
                        }
                        break;
                case 3:
                        switch (crev) {
                        case 1:
                                if (atom_lookup_voltage_object_v3(&voltage_info->v3,
                                                                  voltage_type, voltage_mode))
                                        return true;
                                break;
                        default:
                                DRM_ERROR("unknown voltage object table\n");
                                return false;
                        }
                        break;
                default:
                        DRM_ERROR("unknown voltage object table\n");
                        return false;
                }

        }
        return false;
}

int radeon_atom_get_svi2_info(struct radeon_device *rdev,
                              u8 voltage_type,
                              u8 *svd_gpio_id, u8 *svc_gpio_id)
{
        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
        u8 frev, crev;
        u16 data_offset, size;
        union voltage_object_info *voltage_info;
        union voltage_object *voltage_object = NULL;

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                voltage_info = (union voltage_object_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);

                switch (frev) {
                case 3:
                        switch (crev) {
                        case 1:
                                voltage_object = (union voltage_object *)
                                        atom_lookup_voltage_object_v3(&voltage_info->v3,
                                                                      voltage_type,
                                                                      VOLTAGE_OBJ_SVID2);
                                if (voltage_object) {
                                        *svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId;
                                        *svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId;
                                } else {
                                        return -EINVAL;
                                }
                                break;
                        default:
                                DRM_ERROR("unknown voltage object table\n");
                                return -EINVAL;
                        }
                        break;
                default:
                        DRM_ERROR("unknown voltage object table\n");
                        return -EINVAL;
                }

        }
        return 0;
}

int radeon_atom_get_max_voltage(struct radeon_device *rdev,
                                u8 voltage_type, u16 *max_voltage)
{
        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
        u8 frev, crev;
        u16 data_offset, size;
        union voltage_object_info *voltage_info;
        union voltage_object *voltage_object = NULL;

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                voltage_info = (union voltage_object_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);

                switch (crev) {
                case 1:
                        voltage_object = (union voltage_object *)
                                atom_lookup_voltage_object_v1(&voltage_info->v1, voltage_type);
                        if (voltage_object) {
                                ATOM_VOLTAGE_FORMULA *formula =
                                        &voltage_object->v1.asFormula;
                                if (formula->ucFlag & 1)
                                        *max_voltage =
                                                le16_to_cpu(formula->usVoltageBaseLevel) +
                                                formula->ucNumOfVoltageEntries / 2 *
                                                le16_to_cpu(formula->usVoltageStep);
                                else
                                        *max_voltage =
                                                le16_to_cpu(formula->usVoltageBaseLevel) +
                                                (formula->ucNumOfVoltageEntries - 1) *
                                                le16_to_cpu(formula->usVoltageStep);
                                return 0;
                        }
                        break;
                case 2:
                        voltage_object = (union voltage_object *)
                                atom_lookup_voltage_object_v2(&voltage_info->v2, voltage_type);
                        if (voltage_object) {
                                ATOM_VOLTAGE_FORMULA_V2 *formula =
                                        &voltage_object->v2.asFormula;
                                if (formula->ucNumOfVoltageEntries) {
                                        VOLTAGE_LUT_ENTRY *lut = (VOLTAGE_LUT_ENTRY *)
                                                ((u8 *)&formula->asVIDAdjustEntries[0] +
                                                 (sizeof(VOLTAGE_LUT_ENTRY) * (formula->ucNumOfVoltageEntries - 1)));
                                        *max_voltage =
                                                le16_to_cpu(lut->usVoltageValue);
                                        return 0;
                                }
                        }
                        break;
                default:
                        DRM_ERROR("unknown voltage object table\n");
                        return -EINVAL;
                }

        }
        return -EINVAL;
}

int radeon_atom_get_min_voltage(struct radeon_device *rdev,
                                u8 voltage_type, u16 *min_voltage)
{
        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
        u8 frev, crev;
        u16 data_offset, size;
        union voltage_object_info *voltage_info;
        union voltage_object *voltage_object = NULL;

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                voltage_info = (union voltage_object_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);

                switch (crev) {
                case 1:
                        voltage_object = (union voltage_object *)
                                atom_lookup_voltage_object_v1(&voltage_info->v1, voltage_type);
                        if (voltage_object) {
                                ATOM_VOLTAGE_FORMULA *formula =
                                        &voltage_object->v1.asFormula;
                                *min_voltage =
                                        le16_to_cpu(formula->usVoltageBaseLevel);
                                return 0;
                        }
                        break;
                case 2:
                        voltage_object = (union voltage_object *)
                                atom_lookup_voltage_object_v2(&voltage_info->v2, voltage_type);
                        if (voltage_object) {
                                ATOM_VOLTAGE_FORMULA_V2 *formula =
                                        &voltage_object->v2.asFormula;
                                if (formula->ucNumOfVoltageEntries) {
                                        *min_voltage =
                                                le16_to_cpu(formula->asVIDAdjustEntries[
                                                                    0
                                                                    ].usVoltageValue);
                                        return 0;
                                }
                        }
                        break;
                default:
                        DRM_ERROR("unknown voltage object table\n");
                        return -EINVAL;
                }

        }
        return -EINVAL;
}

int radeon_atom_get_voltage_step(struct radeon_device *rdev,
                                 u8 voltage_type, u16 *voltage_step)
{
        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
        u8 frev, crev;
        u16 data_offset, size;
        union voltage_object_info *voltage_info;
        union voltage_object *voltage_object = NULL;

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                voltage_info = (union voltage_object_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);

                switch (crev) {
                case 1:
                        voltage_object = (union voltage_object *)
                                atom_lookup_voltage_object_v1(&voltage_info->v1, voltage_type);
                        if (voltage_object) {
                                ATOM_VOLTAGE_FORMULA *formula =
                                        &voltage_object->v1.asFormula;
                                if (formula->ucFlag & 1)
                                        *voltage_step =
                                                (le16_to_cpu(formula->usVoltageStep) + 1) / 2;
                                else
                                        *voltage_step =
                                                le16_to_cpu(formula->usVoltageStep);
                                return 0;
                        }
                        break;
                case 2:
                        return -EINVAL;
                default:
                        DRM_ERROR("unknown voltage object table\n");
                        return -EINVAL;
                }

        }
        return -EINVAL;
}

int radeon_atom_round_to_true_voltage(struct radeon_device *rdev,
                                      u8 voltage_type,
                                      u16 nominal_voltage,
                                      u16 *true_voltage)
{
        u16 min_voltage, max_voltage, voltage_step;

        if (radeon_atom_get_max_voltage(rdev, voltage_type, &max_voltage))
                return -EINVAL;
        if (radeon_atom_get_min_voltage(rdev, voltage_type, &min_voltage))
                return -EINVAL;
        if (radeon_atom_get_voltage_step(rdev, voltage_type, &voltage_step))
                return -EINVAL;

        if (nominal_voltage <= min_voltage)
                *true_voltage = min_voltage;
        else if (nominal_voltage >= max_voltage)
                *true_voltage = max_voltage;
        else
                *true_voltage = min_voltage +
                        ((nominal_voltage - min_voltage) / voltage_step) *
                        voltage_step;

        return 0;
}

int radeon_atom_get_voltage_table(struct radeon_device *rdev,
                                  u8 voltage_type, u8 voltage_mode,
                                  struct atom_voltage_table *voltage_table)
{
        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
        u8 frev, crev;
        u16 data_offset, size;
        int i, ret;
        union voltage_object_info *voltage_info;
        union voltage_object *voltage_object = NULL;

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                voltage_info = (union voltage_object_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);

                switch (frev) {
                case 1:
                case 2:
                        switch (crev) {
                        case 1:
                                DRM_ERROR("old table version %d, %d\n", frev, crev);
                                return -EINVAL;
                        case 2:
                                voltage_object = (union voltage_object *)
                                        atom_lookup_voltage_object_v2(&voltage_info->v2, voltage_type);
                                if (voltage_object) {
                                        ATOM_VOLTAGE_FORMULA_V2 *formula =
                                                &voltage_object->v2.asFormula;
                                        VOLTAGE_LUT_ENTRY *lut;
                                        if (formula->ucNumOfVoltageEntries > MAX_VOLTAGE_ENTRIES)
                                                return -EINVAL;
                                        lut = &formula->asVIDAdjustEntries[0];
                                        for (i = 0; i < formula->ucNumOfVoltageEntries; i++) {
                                                voltage_table->entries[i].value =
                                                        le16_to_cpu(lut->usVoltageValue);
                                                ret = radeon_atom_get_voltage_gpio_settings(rdev,
                                                                                            voltage_table->entries[i].value,
                                                                                            voltage_type,
                                                                                            &voltage_table->entries[i].smio_low,
                                                                                            &voltage_table->mask_low);
                                                if (ret)
                                                        return ret;
                                                lut = (VOLTAGE_LUT_ENTRY *)
                                                        ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY));
                                        }
                                        voltage_table->count = formula->ucNumOfVoltageEntries;
                                        return 0;
                                }
                                break;
                        default:
                                DRM_ERROR("unknown voltage object table\n");
                                return -EINVAL;
                        }
                        break;
                case 3:
                        switch (crev) {
                        case 1:
                                voltage_object = (union voltage_object *)
                                        atom_lookup_voltage_object_v3(&voltage_info->v3,
                                                                      voltage_type, voltage_mode);
                                if (voltage_object) {
                                        ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
                                                &voltage_object->v3.asGpioVoltageObj;
                                        VOLTAGE_LUT_ENTRY_V2 *lut;
                                        if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
                                                return -EINVAL;
                                        lut = &gpio->asVolGpioLut[0];
                                        for (i = 0; i < gpio->ucGpioEntryNum; i++) {
                                                voltage_table->entries[i].value =
                                                        le16_to_cpu(lut->usVoltageValue);
                                                voltage_table->entries[i].smio_low =
                                                        le32_to_cpu(lut->ulVoltageId);
                                                lut = (VOLTAGE_LUT_ENTRY_V2 *)
                                                        ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
                                        }
                                        voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
                                        voltage_table->count = gpio->ucGpioEntryNum;
                                        voltage_table->phase_delay = gpio->ucPhaseDelay;
                                        return 0;
                                }
                                break;
                        default:
                                DRM_ERROR("unknown voltage object table\n");
                                return -EINVAL;
                        }
                        break;
                default:
                        DRM_ERROR("unknown voltage object table\n");
                        return -EINVAL;
                }
        }
        return -EINVAL;
}

union vram_info {
        struct _ATOM_VRAM_INFO_V3 v1_3;
        struct _ATOM_VRAM_INFO_V4 v1_4;
        struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
};

int radeon_atom_get_memory_info(struct radeon_device *rdev,
                                u8 module_index, struct atom_memory_info *mem_info)
{
        int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
        u8 frev, crev, i;
        u16 data_offset, size;
        union vram_info *vram_info;

        memset(mem_info, 0, sizeof(struct atom_memory_info));

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                vram_info = (union vram_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);
                switch (frev) {
                case 1:
                        switch (crev) {
                        case 3:
                                /* r6xx */
                                if (module_index < vram_info->v1_3.ucNumOfVRAMModule) {
                                        ATOM_VRAM_MODULE_V3 *vram_module =
                                                (ATOM_VRAM_MODULE_V3 *)vram_info->v1_3.aVramInfo;

                                        for (i = 0; i < module_index; i++) {
                                                if (le16_to_cpu(vram_module->usSize) == 0)
                                                        return -EINVAL;
                                                vram_module = (ATOM_VRAM_MODULE_V3 *)
                                                        ((u8 *)vram_module + le16_to_cpu(vram_module->usSize));
                                        }
                                        mem_info->mem_vendor = vram_module->asMemory.ucMemoryVenderID & 0xf;
                                        mem_info->mem_type = vram_module->asMemory.ucMemoryType & 0xf0;
                                } else
                                        return -EINVAL;
                                break;
                        case 4:
                                /* r7xx, evergreen */
                                if (module_index < vram_info->v1_4.ucNumOfVRAMModule) {
                                        ATOM_VRAM_MODULE_V4 *vram_module =
                                                (ATOM_VRAM_MODULE_V4 *)vram_info->v1_4.aVramInfo;

                                        for (i = 0; i < module_index; i++) {
                                                if (le16_to_cpu(vram_module->usModuleSize) == 0)
                                                        return -EINVAL;
                                                vram_module = (ATOM_VRAM_MODULE_V4 *)
                                                        ((u8 *)vram_module + le16_to_cpu(vram_module->usModuleSize));
                                        }
                                        mem_info->mem_vendor = vram_module->ucMemoryVenderID & 0xf;
                                        mem_info->mem_type = vram_module->ucMemoryType & 0xf0;
                                } else
                                        return -EINVAL;
                                break;
                        default:
                                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                                return -EINVAL;
                        }
                        break;
                case 2:
                        switch (crev) {
                        case 1:
                                /* ni */
                                if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
                                        ATOM_VRAM_MODULE_V7 *vram_module =
                                                (ATOM_VRAM_MODULE_V7 *)vram_info->v2_1.aVramInfo;

                                        for (i = 0; i < module_index; i++) {
                                                if (le16_to_cpu(vram_module->usModuleSize) == 0)
                                                        return -EINVAL;
                                                vram_module = (ATOM_VRAM_MODULE_V7 *)
                                                        ((u8 *)vram_module + le16_to_cpu(vram_module->usModuleSize));
                                        }
                                        mem_info->mem_vendor = vram_module->ucMemoryVenderID & 0xf;
                                        mem_info->mem_type = vram_module->ucMemoryType & 0xf0;
                                } else
                                        return -EINVAL;
                                break;
                        default:
                                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                                return -EINVAL;
                        }
                        break;
                default:
                        DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                        return -EINVAL;
                }
                return 0;
        }
        return -EINVAL;
}

int radeon_atom_get_mclk_range_table(struct radeon_device *rdev,
                                     bool gddr5, u8 module_index,
                                     struct atom_memory_clock_range_table *mclk_range_table)
{
        int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
        u8 frev, crev, i;
        u16 data_offset, size;
        union vram_info *vram_info;
        u32 mem_timing_size = gddr5 ?
                sizeof(ATOM_MEMORY_TIMING_FORMAT_V2) : sizeof(ATOM_MEMORY_TIMING_FORMAT);

        memset(mclk_range_table, 0, sizeof(struct atom_memory_clock_range_table));

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                vram_info = (union vram_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);
                switch (frev) {
                case 1:
                        switch (crev) {
                        case 3:
                                DRM_ERROR("old table version %d, %d\n", frev, crev);
                                return -EINVAL;
                        case 4:
                                /* r7xx, evergreen */
                                if (module_index < vram_info->v1_4.ucNumOfVRAMModule) {
                                        ATOM_VRAM_MODULE_V4 *vram_module =
                                                (ATOM_VRAM_MODULE_V4 *)vram_info->v1_4.aVramInfo;
                                        ATOM_MEMORY_TIMING_FORMAT *format;

                                        for (i = 0; i < module_index; i++) {
                                                if (le16_to_cpu(vram_module->usModuleSize) == 0)
                                                        return -EINVAL;
                                                vram_module = (ATOM_VRAM_MODULE_V4 *)
                                                        ((u8 *)vram_module + le16_to_cpu(vram_module->usModuleSize));
                                        }
                                        mclk_range_table->num_entries = (u8)
                                                ((le16_to_cpu(vram_module->usModuleSize) - offsetof(ATOM_VRAM_MODULE_V4, asMemTiming)) /
                                                 mem_timing_size);
                                        format = &vram_module->asMemTiming[0];
                                        for (i = 0; i < mclk_range_table->num_entries; i++) {
                                                mclk_range_table->mclk[i] = le32_to_cpu(format->ulClkRange);
                                                format = (ATOM_MEMORY_TIMING_FORMAT *)
                                                        ((u8 *)format + mem_timing_size);
                                        }
                                } else
                                        return -EINVAL;
                                break;
                        default:
                                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                                return -EINVAL;
                        }
                        break;
                case 2:
                        DRM_ERROR("new table version %d, %d\n", frev, crev);
                        return -EINVAL;
                default:
                        DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                        return -EINVAL;
                }
                return 0;
        }
        return -EINVAL;
}

#define MEM_ID_MASK           0xff000000
#define MEM_ID_SHIFT          24
#define CLOCK_RANGE_MASK      0x00ffffff
#define CLOCK_RANGE_SHIFT     0
#define LOW_NIBBLE_MASK       0xf
#define DATA_EQU_PREV         0
#define DATA_FROM_TABLE       4

int radeon_atom_init_mc_reg_table(struct radeon_device *rdev,
                                  u8 module_index,
                                  struct atom_mc_reg_table *reg_table)
{
        int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
        u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
        u32 i = 0, j;
        u16 data_offset, size;
        union vram_info *vram_info;

        memset(reg_table, 0, sizeof(struct atom_mc_reg_table));

        if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
                                   &frev, &crev, &data_offset)) {
                vram_info = (union vram_info *)
                        (rdev->mode_info.atom_context->bios + data_offset);
                switch (frev) {
                case 1:
                        DRM_ERROR("old table version %d, %d\n", frev, crev);
                        return -EINVAL;
                case 2:
                        switch (crev) {
                        case 1:
                                if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
                                        ATOM_INIT_REG_BLOCK *reg_block =
                                                (ATOM_INIT_REG_BLOCK *)
                                                ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
                                        ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
                                                (ATOM_MEMORY_SETTING_DATA_BLOCK *)
                                                ((u8 *)reg_block + (2 * sizeof(u16)) +
                                                 le16_to_cpu(reg_block->usRegIndexTblSize));
                                        ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
                                        num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
                                                           sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
                                        if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
                                                return -EINVAL;
                                        while (i < num_entries) {
                                                if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
                                                        break;
                                                reg_table->mc_reg_address[i].s1 =
                                                        (u16)(le16_to_cpu(format->usRegIndex));
                                                reg_table->mc_reg_address[i].pre_reg_data =
                                                        (u8)(format->ucPreRegDataLength);
                                                i++;
                                                format = (ATOM_INIT_REG_INDEX_FORMAT *)
                                                        ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
                                        }
                                        reg_table->last = i;
                                        while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
                                               (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
                                                t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
                                                                >> MEM_ID_SHIFT);
                                                if (module_index == t_mem_id) {
                                                        reg_table->mc_reg_table_entry[num_ranges].mclk_max =
                                                                (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
                                                                      >> CLOCK_RANGE_SHIFT);
                                                        for (i = 0, j = 1; i < reg_table->last; i++) {
                                                                if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
                                                                        reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
                                                                                (u32)le32_to_cpu(*((u32 *)reg_data + j));
                                                                        j++;
                                                                } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
                                                                        reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
                                                                                reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
                                                                }
                                                        }
                                                        num_ranges++;
                                                }
                                                reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
                                                        ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
                                        }
                                        if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
                                                return -EINVAL;
                                        reg_table->num_entries = num_ranges;
                                } else
                                        return -EINVAL;
                                break;
                        default:
                                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                                return -EINVAL;
                        }
                        break;
                default:
                        DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
                        return -EINVAL;
                }
                return 0;
        }
        return -EINVAL;
}

void radeon_atom_initialize_bios_scratch_regs(struct drm_device *dev)
{
        struct radeon_device *rdev = dev->dev_private;
        uint32_t bios_2_scratch, bios_6_scratch;

        if (rdev->family >= CHIP_R600) {
                bios_2_scratch = RREG32(R600_BIOS_2_SCRATCH);
                bios_6_scratch = RREG32(R600_BIOS_6_SCRATCH);
        } else {
                bios_2_scratch = RREG32(RADEON_BIOS_2_SCRATCH);
                bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
        }

        /* let the bios control the backlight */
        bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;

        /* tell the bios not to handle mode switching */
        bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;

        /* clear the vbios dpms state */
        if (ASIC_IS_DCE4(rdev))
                bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;

        if (rdev->family >= CHIP_R600) {
                WREG32(R600_BIOS_2_SCRATCH, bios_2_scratch);
                WREG32(R600_BIOS_6_SCRATCH, bios_6_scratch);
        } else {
                WREG32(RADEON_BIOS_2_SCRATCH, bios_2_scratch);
                WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
        }

}

void radeon_save_bios_scratch_regs(struct radeon_device *rdev)
{
        uint32_t scratch_reg;
        int i;

        if (rdev->family >= CHIP_R600)
                scratch_reg = R600_BIOS_0_SCRATCH;
        else
                scratch_reg = RADEON_BIOS_0_SCRATCH;

        for (i = 0; i < RADEON_BIOS_NUM_SCRATCH; i++)
                rdev->bios_scratch[i] = RREG32(scratch_reg + (i * 4));
}

void radeon_restore_bios_scratch_regs(struct radeon_device *rdev)
{
        uint32_t scratch_reg;
        int i;

        if (rdev->family >= CHIP_R600)
                scratch_reg = R600_BIOS_0_SCRATCH;
        else
                scratch_reg = RADEON_BIOS_0_SCRATCH;

        for (i = 0; i < RADEON_BIOS_NUM_SCRATCH; i++)
                WREG32(scratch_reg + (i * 4), rdev->bios_scratch[i]);
}

void radeon_atom_output_lock(struct drm_encoder *encoder, bool lock)
{
        struct drm_device *dev = encoder->dev;
        struct radeon_device *rdev = dev->dev_private;
        uint32_t bios_6_scratch;

        if (rdev->family >= CHIP_R600)
                bios_6_scratch = RREG32(R600_BIOS_6_SCRATCH);
        else
                bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);

        if (lock) {
                bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
                bios_6_scratch &= ~ATOM_S6_ACC_MODE;
        } else {
                bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
                bios_6_scratch |= ATOM_S6_ACC_MODE;
        }

        if (rdev->family >= CHIP_R600)
                WREG32(R600_BIOS_6_SCRATCH, bios_6_scratch);
        else
                WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
}

/* at some point we may want to break this out into individual functions */
void
radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
                                       struct drm_encoder *encoder,
                                       bool connected)
{
        struct drm_device *dev = connector->dev;
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_connector *radeon_connector =
            to_radeon_connector(connector);
        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
        uint32_t bios_0_scratch, bios_3_scratch, bios_6_scratch;

        if (rdev->family >= CHIP_R600) {
                bios_0_scratch = RREG32(R600_BIOS_0_SCRATCH);
                bios_3_scratch = RREG32(R600_BIOS_3_SCRATCH);
                bios_6_scratch = RREG32(R600_BIOS_6_SCRATCH);
        } else {
                bios_0_scratch = RREG32(RADEON_BIOS_0_SCRATCH);
                bios_3_scratch = RREG32(RADEON_BIOS_3_SCRATCH);
                bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
        }

        if ((radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_TV1_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("TV1 connected\n");
                        bios_3_scratch |= ATOM_S3_TV1_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_TV1;
                } else {
                        DRM_DEBUG_KMS("TV1 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_TV1_MASK;
                        bios_3_scratch &= ~ATOM_S3_TV1_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_TV1;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_CV_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_CV_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("CV connected\n");
                        bios_3_scratch |= ATOM_S3_CV_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_CV;
                } else {
                        DRM_DEBUG_KMS("CV disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_CV_MASK;
                        bios_3_scratch &= ~ATOM_S3_CV_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_CV;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_LCD1_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("LCD1 connected\n");
                        bios_0_scratch |= ATOM_S0_LCD1;
                        bios_3_scratch |= ATOM_S3_LCD1_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_LCD1;
                } else {
                        DRM_DEBUG_KMS("LCD1 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_LCD1;
                        bios_3_scratch &= ~ATOM_S3_LCD1_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_LCD1;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_CRT1_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("CRT1 connected\n");
                        bios_0_scratch |= ATOM_S0_CRT1_COLOR;
                        bios_3_scratch |= ATOM_S3_CRT1_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_CRT1;
                } else {
                        DRM_DEBUG_KMS("CRT1 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_CRT1_MASK;
                        bios_3_scratch &= ~ATOM_S3_CRT1_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_CRT1;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_CRT2_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("CRT2 connected\n");
                        bios_0_scratch |= ATOM_S0_CRT2_COLOR;
                        bios_3_scratch |= ATOM_S3_CRT2_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_CRT2;
                } else {
                        DRM_DEBUG_KMS("CRT2 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_CRT2_MASK;
                        bios_3_scratch &= ~ATOM_S3_CRT2_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_CRT2;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_DFP1_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("DFP1 connected\n");
                        bios_0_scratch |= ATOM_S0_DFP1;
                        bios_3_scratch |= ATOM_S3_DFP1_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_DFP1;
                } else {
                        DRM_DEBUG_KMS("DFP1 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_DFP1;
                        bios_3_scratch &= ~ATOM_S3_DFP1_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP1;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_DFP2_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("DFP2 connected\n");
                        bios_0_scratch |= ATOM_S0_DFP2;
                        bios_3_scratch |= ATOM_S3_DFP2_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_DFP2;
                } else {
                        DRM_DEBUG_KMS("DFP2 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_DFP2;
                        bios_3_scratch &= ~ATOM_S3_DFP2_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP2;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_DFP3_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_DFP3_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("DFP3 connected\n");
                        bios_0_scratch |= ATOM_S0_DFP3;
                        bios_3_scratch |= ATOM_S3_DFP3_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_DFP3;
                } else {
                        DRM_DEBUG_KMS("DFP3 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_DFP3;
                        bios_3_scratch &= ~ATOM_S3_DFP3_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP3;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_DFP4_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_DFP4_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("DFP4 connected\n");
                        bios_0_scratch |= ATOM_S0_DFP4;
                        bios_3_scratch |= ATOM_S3_DFP4_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_DFP4;
                } else {
                        DRM_DEBUG_KMS("DFP4 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_DFP4;
                        bios_3_scratch &= ~ATOM_S3_DFP4_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP4;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_DFP5_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_DFP5_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("DFP5 connected\n");
                        bios_0_scratch |= ATOM_S0_DFP5;
                        bios_3_scratch |= ATOM_S3_DFP5_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_DFP5;
                } else {
                        DRM_DEBUG_KMS("DFP5 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_DFP5;
                        bios_3_scratch &= ~ATOM_S3_DFP5_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP5;
                }
        }
        if ((radeon_encoder->devices & ATOM_DEVICE_DFP6_SUPPORT) &&
            (radeon_connector->devices & ATOM_DEVICE_DFP6_SUPPORT)) {
                if (connected) {
                        DRM_DEBUG_KMS("DFP6 connected\n");
                        bios_0_scratch |= ATOM_S0_DFP6;
                        bios_3_scratch |= ATOM_S3_DFP6_ACTIVE;
                        bios_6_scratch |= ATOM_S6_ACC_REQ_DFP6;
                } else {
                        DRM_DEBUG_KMS("DFP6 disconnected\n");
                        bios_0_scratch &= ~ATOM_S0_DFP6;
                        bios_3_scratch &= ~ATOM_S3_DFP6_ACTIVE;
                        bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP6;
                }
        }

        if (rdev->family >= CHIP_R600) {
                WREG32(R600_BIOS_0_SCRATCH, bios_0_scratch);
                WREG32(R600_BIOS_3_SCRATCH, bios_3_scratch);
                WREG32(R600_BIOS_6_SCRATCH, bios_6_scratch);
        } else {
                WREG32(RADEON_BIOS_0_SCRATCH, bios_0_scratch);
                WREG32(RADEON_BIOS_3_SCRATCH, bios_3_scratch);
                WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
        }
}

void
radeon_atombios_encoder_crtc_scratch_regs(struct drm_encoder *encoder, int crtc)
{
        struct drm_device *dev = encoder->dev;
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
        uint32_t bios_3_scratch;

        if (ASIC_IS_DCE4(rdev))
                return;

        if (rdev->family >= CHIP_R600)
                bios_3_scratch = RREG32(R600_BIOS_3_SCRATCH);
        else
                bios_3_scratch = RREG32(RADEON_BIOS_3_SCRATCH);

        if (radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_TV1_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 18);
        }
        if (radeon_encoder->devices & ATOM_DEVICE_CV_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_CV_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 24);
        }
        if (radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_CRT1_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 16);
        }
        if (radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_CRT2_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 20);
        }
        if (radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_LCD1_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 17);
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_DFP1_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 19);
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_DFP2_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 23);
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP3_SUPPORT) {
                bios_3_scratch &= ~ATOM_S3_DFP3_CRTC_ACTIVE;
                bios_3_scratch |= (crtc << 25);
        }

        if (rdev->family >= CHIP_R600)
                WREG32(R600_BIOS_3_SCRATCH, bios_3_scratch);
        else
                WREG32(RADEON_BIOS_3_SCRATCH, bios_3_scratch);
}

void
radeon_atombios_encoder_dpms_scratch_regs(struct drm_encoder *encoder, bool on)
{
        struct drm_device *dev = encoder->dev;
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
        uint32_t bios_2_scratch;

        if (ASIC_IS_DCE4(rdev))
                return;

        if (rdev->family >= CHIP_R600)
                bios_2_scratch = RREG32(R600_BIOS_2_SCRATCH);
        else
                bios_2_scratch = RREG32(RADEON_BIOS_2_SCRATCH);

        if (radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_TV1_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_TV1_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_CV_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_CV_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_CV_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_CRT1_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_CRT1_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_CRT2_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_CRT2_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_LCD1_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_LCD1_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_DFP1_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_DFP1_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_DFP2_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_DFP2_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP3_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_DFP3_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_DFP3_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP4_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_DFP4_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_DFP4_DPMS_STATE;
        }
        if (radeon_encoder->devices & ATOM_DEVICE_DFP5_SUPPORT) {
                if (on)
                        bios_2_scratch &= ~ATOM_S2_DFP5_DPMS_STATE;
                else
                        bios_2_scratch |= ATOM_S2_DFP5_DPMS_STATE;
        }

        if (rdev->family >= CHIP_R600)
                WREG32(R600_BIOS_2_SCRATCH, bios_2_scratch);
        else
                WREG32(RADEON_BIOS_2_SCRATCH, bios_2_scratch);
}