// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) ST-Ericsson SA 2010
 *
 * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
 *          Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
 *          Daniel Willerud <daniel.willerud@stericsson.com> for ST-Ericsson
 *
 * AB8500 peripheral regulators
 *
 * AB8500 supports the following regulators:
 *   VAUX1/2/3, VINTCORE, VTVOUT, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA
 *
 * AB8505 supports the following regulators:
 *   VAUX1/2/3/4/5/6, VINTCORE, VADC, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA
 */
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/slab.h>

/* AB8500 regulators */
enum ab8500_regulator_id {
        AB8500_LDO_AUX1,
        AB8500_LDO_AUX2,
        AB8500_LDO_AUX3,
        AB8500_LDO_INTCORE,
        AB8500_LDO_TVOUT,
        AB8500_LDO_AUDIO,
        AB8500_LDO_ANAMIC1,
        AB8500_LDO_ANAMIC2,
        AB8500_LDO_DMIC,
        AB8500_LDO_ANA,
        AB8500_NUM_REGULATORS,
};

/* AB8505 regulators */
enum ab8505_regulator_id {
        AB8505_LDO_AUX1,
        AB8505_LDO_AUX2,
        AB8505_LDO_AUX3,
        AB8505_LDO_AUX4,
        AB8505_LDO_AUX5,
        AB8505_LDO_AUX6,
        AB8505_LDO_INTCORE,
        AB8505_LDO_ADC,
        AB8505_LDO_AUDIO,
        AB8505_LDO_ANAMIC1,
        AB8505_LDO_ANAMIC2,
        AB8505_LDO_AUX8,
        AB8505_LDO_ANA,
        AB8505_NUM_REGULATORS,
};

/* AB8500 registers */
enum ab8500_regulator_reg {
        AB8500_REGUREQUESTCTRL2,
        AB8500_REGUREQUESTCTRL3,
        AB8500_REGUREQUESTCTRL4,
        AB8500_REGUSYSCLKREQ1HPVALID1,
        AB8500_REGUSYSCLKREQ1HPVALID2,
        AB8500_REGUHWHPREQ1VALID1,
        AB8500_REGUHWHPREQ1VALID2,
        AB8500_REGUHWHPREQ2VALID1,
        AB8500_REGUHWHPREQ2VALID2,
        AB8500_REGUSWHPREQVALID1,
        AB8500_REGUSWHPREQVALID2,
        AB8500_REGUSYSCLKREQVALID1,
        AB8500_REGUSYSCLKREQVALID2,
        AB8500_REGUMISC1,
        AB8500_VAUDIOSUPPLY,
        AB8500_REGUCTRL1VAMIC,
        AB8500_VPLLVANAREGU,
        AB8500_VREFDDR,
        AB8500_EXTSUPPLYREGU,
        AB8500_VAUX12REGU,
        AB8500_VRF1VAUX3REGU,
        AB8500_VAUX1SEL,
        AB8500_VAUX2SEL,
        AB8500_VRF1VAUX3SEL,
        AB8500_REGUCTRL2SPARE,
        AB8500_REGUCTRLDISCH,
        AB8500_REGUCTRLDISCH2,
        AB8500_NUM_REGULATOR_REGISTERS,
};

/* AB8505 registers */
enum ab8505_regulator_reg {
        AB8505_REGUREQUESTCTRL1,
        AB8505_REGUREQUESTCTRL2,
        AB8505_REGUREQUESTCTRL3,
        AB8505_REGUREQUESTCTRL4,
        AB8505_REGUSYSCLKREQ1HPVALID1,
        AB8505_REGUSYSCLKREQ1HPVALID2,
        AB8505_REGUHWHPREQ1VALID1,
        AB8505_REGUHWHPREQ1VALID2,
        AB8505_REGUHWHPREQ2VALID1,
        AB8505_REGUHWHPREQ2VALID2,
        AB8505_REGUSWHPREQVALID1,
        AB8505_REGUSWHPREQVALID2,
        AB8505_REGUSYSCLKREQVALID1,
        AB8505_REGUSYSCLKREQVALID2,
        AB8505_REGUVAUX4REQVALID,
        AB8505_REGUMISC1,
        AB8505_VAUDIOSUPPLY,
        AB8505_REGUCTRL1VAMIC,
        AB8505_VSMPSAREGU,
        AB8505_VSMPSBREGU,
        AB8505_VSAFEREGU, /* NOTE! PRCMU register */
        AB8505_VPLLVANAREGU,
        AB8505_EXTSUPPLYREGU,
        AB8505_VAUX12REGU,
        AB8505_VRF1VAUX3REGU,
        AB8505_VSMPSASEL1,
        AB8505_VSMPSASEL2,
        AB8505_VSMPSASEL3,
        AB8505_VSMPSBSEL1,
        AB8505_VSMPSBSEL2,
        AB8505_VSMPSBSEL3,
        AB8505_VSAFESEL1, /* NOTE! PRCMU register */
        AB8505_VSAFESEL2, /* NOTE! PRCMU register */
        AB8505_VSAFESEL3, /* NOTE! PRCMU register */
        AB8505_VAUX1SEL,
        AB8505_VAUX2SEL,
        AB8505_VRF1VAUX3SEL,
        AB8505_VAUX4REQCTRL,
        AB8505_VAUX4REGU,
        AB8505_VAUX4SEL,
        AB8505_REGUCTRLDISCH,
        AB8505_REGUCTRLDISCH2,
        AB8505_REGUCTRLDISCH3,
        AB8505_CTRLVAUX5,
        AB8505_CTRLVAUX6,
        AB8505_NUM_REGULATOR_REGISTERS,
};

/**
 * struct ab8500_shared_mode - is used when mode is shared between
 * two regulators.
 * @shared_regulator: pointer to the other sharing regulator
 * @lp_mode_req: low power mode requested by this regulator
 */
struct ab8500_shared_mode {
        struct ab8500_regulator_info *shared_regulator;
        bool lp_mode_req;
};

/**
 * struct ab8500_regulator_info - ab8500 regulator information
 * @dev: device pointer
 * @desc: regulator description
 * @shared_mode: used when mode is shared between two regulators
 * @load_lp_uA: maximum load in idle (low power) mode
 * @update_bank: bank to control on/off
 * @update_reg: register to control on/off
 * @update_mask: mask to enable/disable and set mode of regulator
 * @update_val: bits holding the regulator current mode
 * @update_val_idle: bits to enable the regulator in idle (low power) mode
 * @update_val_normal: bits to enable the regulator in normal (high power) mode
 * @mode_bank: bank with location of mode register
 * @mode_reg: mode register
 * @mode_mask: mask for setting mode
 * @mode_val_idle: mode setting for low power
 * @mode_val_normal: mode setting for normal power
 * @voltage_bank: bank to control regulator voltage
 * @voltage_reg: register to control regulator voltage
 * @voltage_mask: mask to control regulator voltage
 * @expand_register: 
 */
struct ab8500_regulator_info {
        struct device           *dev;
        struct regulator_desc   desc;
        struct ab8500_shared_mode *shared_mode;
        int load_lp_uA;
        u8 update_bank;
        u8 update_reg;
        u8 update_mask;
        u8 update_val;
        u8 update_val_idle;
        u8 update_val_normal;
        u8 mode_bank;
        u8 mode_reg;
        u8 mode_mask;
        u8 mode_val_idle;
        u8 mode_val_normal;
        u8 voltage_bank;
        u8 voltage_reg;
        u8 voltage_mask;
};

/* voltage tables for the vauxn/vintcore supplies */
static const unsigned int ldo_vauxn_voltages[] = {
        1100000,
        1200000,
        1300000,
        1400000,
        1500000,
        1800000,
        1850000,
        1900000,
        2500000,
        2650000,
        2700000,
        2750000,
        2800000,
        2900000,
        3000000,
        3300000,
};

static const unsigned int ldo_vaux3_voltages[] = {
        1200000,
        1500000,
        1800000,
        2100000,
        2500000,
        2750000,
        2790000,
        2910000,
};

static const unsigned int ldo_vaux56_voltages[] = {
        1800000,
        1050000,
        1100000,
        1200000,
        1500000,
        2200000,
        2500000,
        2790000,
};

static const unsigned int ldo_vintcore_voltages[] = {
        1200000,
        1225000,
        1250000,
        1275000,
        1300000,
        1325000,
        1350000,
};

static const unsigned int fixed_1200000_voltage[] = {
        1200000,
};

static const unsigned int fixed_1800000_voltage[] = {
        1800000,
};

static const unsigned int fixed_2000000_voltage[] = {
        2000000,
};

static const unsigned int fixed_2050000_voltage[] = {
        2050000,
};

static const unsigned int ldo_vana_voltages[] = {
        1050000,
        1075000,
        1100000,
        1125000,
        1150000,
        1175000,
        1200000,
        1225000,
};

static const unsigned int ldo_vaudio_voltages[] = {
        2000000,
        2100000,
        2200000,
        2300000,
        2400000,
        2500000,
        2600000,
        2600000,        /* Duplicated in Vaudio and IsoUicc Control register. */
};

static DEFINE_MUTEX(shared_mode_mutex);
static struct ab8500_shared_mode ldo_anamic1_shared;
static struct ab8500_shared_mode ldo_anamic2_shared;

static int ab8500_regulator_enable(struct regulator_dev *rdev)
{
        int ret;
        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        ret = abx500_mask_and_set_register_interruptible(info->dev,
                info->update_bank, info->update_reg,
                info->update_mask, info->update_val);
        if (ret < 0) {
                dev_err(rdev_get_dev(rdev),
                        "couldn't set enable bits for regulator\n");
                return ret;
        }

        dev_vdbg(rdev_get_dev(rdev),
                "%s-enable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
                info->desc.name, info->update_bank, info->update_reg,
                info->update_mask, info->update_val);

        return ret;
}

static int ab8500_regulator_disable(struct regulator_dev *rdev)
{
        int ret;
        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        ret = abx500_mask_and_set_register_interruptible(info->dev,
                info->update_bank, info->update_reg,
                info->update_mask, 0x0);
        if (ret < 0) {
                dev_err(rdev_get_dev(rdev),
                        "couldn't set disable bits for regulator\n");
                return ret;
        }

        dev_vdbg(rdev_get_dev(rdev),
                "%s-disable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
                info->desc.name, info->update_bank, info->update_reg,
                info->update_mask, 0x0);

        return ret;
}

static int ab8500_regulator_is_enabled(struct regulator_dev *rdev)
{
        int ret;
        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
        u8 regval;

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        ret = abx500_get_register_interruptible(info->dev,
                info->update_bank, info->update_reg, &regval);
        if (ret < 0) {
                dev_err(rdev_get_dev(rdev),
                        "couldn't read 0x%x register\n", info->update_reg);
                return ret;
        }

        dev_vdbg(rdev_get_dev(rdev),
                "%s-is_enabled (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
                " 0x%x\n",
                info->desc.name, info->update_bank, info->update_reg,
                info->update_mask, regval);

        if (regval & info->update_mask)
                return 1;
        else
                return 0;
}

static unsigned int ab8500_regulator_get_optimum_mode(
                struct regulator_dev *rdev, int input_uV,
                int output_uV, int load_uA)
{
        unsigned int mode;

        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        if (load_uA <= info->load_lp_uA)
                mode = REGULATOR_MODE_IDLE;
        else
                mode = REGULATOR_MODE_NORMAL;

        return mode;
}

static int ab8500_regulator_set_mode(struct regulator_dev *rdev,
                                     unsigned int mode)
{
        int ret = 0;
        u8 bank, reg, mask, val;
        bool lp_mode_req = false;
        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        if (info->mode_mask) {
                bank = info->mode_bank;
                reg = info->mode_reg;
                mask = info->mode_mask;
        } else {
                bank = info->update_bank;
                reg = info->update_reg;
                mask = info->update_mask;
        }

        if (info->shared_mode)
                mutex_lock(&shared_mode_mutex);

        switch (mode) {
        case REGULATOR_MODE_NORMAL:
                if (info->shared_mode)
                        lp_mode_req = false;

                if (info->mode_mask)
                        val = info->mode_val_normal;
                else
                        val = info->update_val_normal;
                break;
        case REGULATOR_MODE_IDLE:
                if (info->shared_mode) {
                        struct ab8500_regulator_info *shared_regulator;

                        shared_regulator = info->shared_mode->shared_regulator;
                        if (!shared_regulator->shared_mode->lp_mode_req) {
                                /* Other regulator prevent LP mode */
                                info->shared_mode->lp_mode_req = true;
                                goto out_unlock;
                        }

                        lp_mode_req = true;
                }

                if (info->mode_mask)
                        val = info->mode_val_idle;
                else
                        val = info->update_val_idle;
                break;
        default:
                ret = -EINVAL;
                goto out_unlock;
        }

        if (info->mode_mask || ab8500_regulator_is_enabled(rdev)) {
                ret = abx500_mask_and_set_register_interruptible(info->dev,
                        bank, reg, mask, val);
                if (ret < 0) {
                        dev_err(rdev_get_dev(rdev),
                                "couldn't set regulator mode\n");
                        goto out_unlock;
                }

                dev_vdbg(rdev_get_dev(rdev),
                        "%s-set_mode (bank, reg, mask, value): "
                        "0x%x, 0x%x, 0x%x, 0x%x\n",
                        info->desc.name, bank, reg,
                        mask, val);
        }

        if (!info->mode_mask)
                info->update_val = val;

        if (info->shared_mode)
                info->shared_mode->lp_mode_req = lp_mode_req;

out_unlock:
        if (info->shared_mode)
                mutex_unlock(&shared_mode_mutex);

        return ret;
}

static unsigned int ab8500_regulator_get_mode(struct regulator_dev *rdev)
{
        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
        int ret;
        u8 val;
        u8 val_normal;
        u8 val_idle;

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        /* Need special handling for shared mode */
        if (info->shared_mode) {
                if (info->shared_mode->lp_mode_req)
                        return REGULATOR_MODE_IDLE;
                else
                        return REGULATOR_MODE_NORMAL;
        }

        if (info->mode_mask) {
                /* Dedicated register for handling mode */
                ret = abx500_get_register_interruptible(info->dev,
                info->mode_bank, info->mode_reg, &val);
                val = val & info->mode_mask;

                val_normal = info->mode_val_normal;
                val_idle = info->mode_val_idle;
        } else {
                /* Mode register same as enable register */
                val = info->update_val;
                val_normal = info->update_val_normal;
                val_idle = info->update_val_idle;
        }

        if (val == val_normal)
                ret = REGULATOR_MODE_NORMAL;
        else if (val == val_idle)
                ret = REGULATOR_MODE_IDLE;
        else
                ret = -EINVAL;

        return ret;
}

static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev)
{
        int ret, voltage_shift;
        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
        u8 regval;

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        voltage_shift = ffs(info->voltage_mask) - 1;

        ret = abx500_get_register_interruptible(info->dev,
                        info->voltage_bank, info->voltage_reg, &regval);
        if (ret < 0) {
                dev_err(rdev_get_dev(rdev),
                        "couldn't read voltage reg for regulator\n");
                return ret;
        }

        dev_vdbg(rdev_get_dev(rdev),
                "%s-get_voltage (bank, reg, mask, shift, value): "
                "0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
                info->desc.name, info->voltage_bank,
                info->voltage_reg, info->voltage_mask,
                voltage_shift, regval);

        return (regval & info->voltage_mask) >> voltage_shift;
}

static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev,
                                            unsigned selector)
{
        int ret, voltage_shift;
        struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
        u8 regval;

        if (info == NULL) {
                dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
                return -EINVAL;
        }

        voltage_shift = ffs(info->voltage_mask) - 1;

        /* set the registers for the request */
        regval = (u8)selector << voltage_shift;
        ret = abx500_mask_and_set_register_interruptible(info->dev,
                        info->voltage_bank, info->voltage_reg,
                        info->voltage_mask, regval);
        if (ret < 0)
                dev_err(rdev_get_dev(rdev),
                "couldn't set voltage reg for regulator\n");

        dev_vdbg(rdev_get_dev(rdev),
                "%s-set_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
                " 0x%x\n",
                info->desc.name, info->voltage_bank, info->voltage_reg,
                info->voltage_mask, regval);

        return ret;
}

static const struct regulator_ops ab8500_regulator_volt_mode_ops = {
        .enable                 = ab8500_regulator_enable,
        .disable                = ab8500_regulator_disable,
        .is_enabled             = ab8500_regulator_is_enabled,
        .get_optimum_mode       = ab8500_regulator_get_optimum_mode,
        .set_mode               = ab8500_regulator_set_mode,
        .get_mode               = ab8500_regulator_get_mode,
        .get_voltage_sel        = ab8500_regulator_get_voltage_sel,
        .set_voltage_sel        = ab8500_regulator_set_voltage_sel,
        .list_voltage           = regulator_list_voltage_table,
};

static const struct regulator_ops ab8500_regulator_volt_ops = {
        .enable         = ab8500_regulator_enable,
        .disable        = ab8500_regulator_disable,
        .is_enabled     = ab8500_regulator_is_enabled,
        .get_voltage_sel = ab8500_regulator_get_voltage_sel,
        .set_voltage_sel = ab8500_regulator_set_voltage_sel,
        .list_voltage   = regulator_list_voltage_table,
};

static const struct regulator_ops ab8500_regulator_mode_ops = {
        .enable                 = ab8500_regulator_enable,
        .disable                = ab8500_regulator_disable,
        .is_enabled             = ab8500_regulator_is_enabled,
        .get_optimum_mode       = ab8500_regulator_get_optimum_mode,
        .set_mode               = ab8500_regulator_set_mode,
        .get_mode               = ab8500_regulator_get_mode,
        .list_voltage           = regulator_list_voltage_table,
};

static const struct regulator_ops ab8500_regulator_ops = {
        .enable                 = ab8500_regulator_enable,
        .disable                = ab8500_regulator_disable,
        .is_enabled             = ab8500_regulator_is_enabled,
        .list_voltage           = regulator_list_voltage_table,
};

static const struct regulator_ops ab8500_regulator_anamic_mode_ops = {
        .enable         = ab8500_regulator_enable,
        .disable        = ab8500_regulator_disable,
        .is_enabled     = ab8500_regulator_is_enabled,
        .set_mode       = ab8500_regulator_set_mode,
        .get_mode       = ab8500_regulator_get_mode,
        .list_voltage   = regulator_list_voltage_table,
};

/* AB8500 regulator information */
static struct ab8500_regulator_info
                ab8500_regulator_info[AB8500_NUM_REGULATORS] = {
        /*
         * Variable Voltage Regulators
         *   name, min mV, max mV,
         *   update bank, reg, mask, enable val
         *   volt bank, reg, mask
         */
        [AB8500_LDO_AUX1] = {
                .desc = {
                        .name           = "LDO-AUX1",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_AUX1,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vauxn_voltages),
                        .volt_table     = ldo_vauxn_voltages,
                        .enable_time    = 200,
                        .supply_name    = "vin",
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x04,
                .update_reg             = 0x09,
                .update_mask            = 0x03,
                .update_val             = 0x01,
                .update_val_idle        = 0x03,
                .update_val_normal      = 0x01,
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x1f,
                .voltage_mask           = 0x0f,
        },
        [AB8500_LDO_AUX2] = {
                .desc = {
                        .name           = "LDO-AUX2",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_AUX2,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vauxn_voltages),
                        .volt_table     = ldo_vauxn_voltages,
                        .enable_time    = 200,
                        .supply_name    = "vin",
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x04,
                .update_reg             = 0x09,
                .update_mask            = 0x0c,
                .update_val             = 0x04,
                .update_val_idle        = 0x0c,
                .update_val_normal      = 0x04,
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x20,
                .voltage_mask           = 0x0f,
        },
        [AB8500_LDO_AUX3] = {
                .desc = {
                        .name           = "LDO-AUX3",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_AUX3,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vaux3_voltages),
                        .volt_table     = ldo_vaux3_voltages,
                        .enable_time    = 450,
                        .supply_name    = "vin",
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x04,
                .update_reg             = 0x0a,
                .update_mask            = 0x03,
                .update_val             = 0x01,
                .update_val_idle        = 0x03,
                .update_val_normal      = 0x01,
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x21,
                .voltage_mask           = 0x07,
        },
        [AB8500_LDO_INTCORE] = {
                .desc = {
                        .name           = "LDO-INTCORE",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_INTCORE,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vintcore_voltages),
                        .volt_table     = ldo_vintcore_voltages,
                        .enable_time    = 750,
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x03,
                .update_reg             = 0x80,
                .update_mask            = 0x44,
                .update_val             = 0x44,
                .update_val_idle        = 0x44,
                .update_val_normal      = 0x04,
                .voltage_bank           = 0x03,
                .voltage_reg            = 0x80,
                .voltage_mask           = 0x38,
        },

        /*
         * Fixed Voltage Regulators
         *   name, fixed mV,
         *   update bank, reg, mask, enable val
         */
        [AB8500_LDO_TVOUT] = {
                .desc = {
                        .name           = "LDO-TVOUT",
                        .ops            = &ab8500_regulator_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_TVOUT,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .volt_table     = fixed_2000000_voltage,
                        .enable_time    = 500,
                },
                .load_lp_uA             = 1000,
                .update_bank            = 0x03,
                .update_reg             = 0x80,
                .update_mask            = 0x82,
                .update_val             = 0x02,
                .update_val_idle        = 0x82,
                .update_val_normal      = 0x02,
        },
        [AB8500_LDO_AUDIO] = {
                .desc = {
                        .name           = "LDO-AUDIO",
                        .ops            = &ab8500_regulator_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_AUDIO,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .enable_time    = 140,
                        .volt_table     = fixed_2000000_voltage,
                },
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x02,
                .update_val             = 0x02,
        },
        [AB8500_LDO_ANAMIC1] = {
                .desc = {
                        .name           = "LDO-ANAMIC1",
                        .ops            = &ab8500_regulator_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_ANAMIC1,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .enable_time    = 500,
                        .volt_table     = fixed_2050000_voltage,
                },
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x08,
                .update_val             = 0x08,
        },
        [AB8500_LDO_ANAMIC2] = {
                .desc = {
                        .name           = "LDO-ANAMIC2",
                        .ops            = &ab8500_regulator_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_ANAMIC2,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .enable_time    = 500,
                        .volt_table     = fixed_2050000_voltage,
                },
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x10,
                .update_val             = 0x10,
        },
        [AB8500_LDO_DMIC] = {
                .desc = {
                        .name           = "LDO-DMIC",
                        .ops            = &ab8500_regulator_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_DMIC,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .enable_time    = 420,
                        .volt_table     = fixed_1800000_voltage,
                },
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x04,
                .update_val             = 0x04,
        },

        /*
         * Regulators with fixed voltage and normal/idle modes
         */
        [AB8500_LDO_ANA] = {
                .desc = {
                        .name           = "LDO-ANA",
                        .ops            = &ab8500_regulator_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8500_LDO_ANA,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .enable_time    = 140,
                        .volt_table     = fixed_1200000_voltage,
                },
                .load_lp_uA             = 1000,
                .update_bank            = 0x04,
                .update_reg             = 0x06,
                .update_mask            = 0x0c,
                .update_val             = 0x04,
                .update_val_idle        = 0x0c,
                .update_val_normal      = 0x04,
        },
};

/* AB8505 regulator information */
static struct ab8500_regulator_info
                ab8505_regulator_info[AB8505_NUM_REGULATORS] = {
        /*
         * Variable Voltage Regulators
         *   name, min mV, max mV,
         *   update bank, reg, mask, enable val
         *   volt bank, reg, mask
         */
        [AB8505_LDO_AUX1] = {
                .desc = {
                        .name           = "LDO-AUX1",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUX1,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vauxn_voltages),
                        .volt_table     = ldo_vauxn_voltages,
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x04,
                .update_reg             = 0x09,
                .update_mask            = 0x03,
                .update_val             = 0x01,
                .update_val_idle        = 0x03,
                .update_val_normal      = 0x01,
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x1f,
                .voltage_mask           = 0x0f,
        },
        [AB8505_LDO_AUX2] = {
                .desc = {
                        .name           = "LDO-AUX2",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUX2,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vauxn_voltages),
                        .volt_table     = ldo_vauxn_voltages,
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x04,
                .update_reg             = 0x09,
                .update_mask            = 0x0c,
                .update_val             = 0x04,
                .update_val_idle        = 0x0c,
                .update_val_normal      = 0x04,
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x20,
                .voltage_mask           = 0x0f,
        },
        [AB8505_LDO_AUX3] = {
                .desc = {
                        .name           = "LDO-AUX3",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUX3,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vaux3_voltages),
                        .volt_table     = ldo_vaux3_voltages,
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x04,
                .update_reg             = 0x0a,
                .update_mask            = 0x03,
                .update_val             = 0x01,
                .update_val_idle        = 0x03,
                .update_val_normal      = 0x01,
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x21,
                .voltage_mask           = 0x07,
        },
        [AB8505_LDO_AUX4] = {
                .desc = {
                        .name           = "LDO-AUX4",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUX4,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vauxn_voltages),
                        .volt_table     = ldo_vauxn_voltages,
                },
                .load_lp_uA             = 5000,
                /* values for Vaux4Regu register */
                .update_bank            = 0x04,
                .update_reg             = 0x2e,
                .update_mask            = 0x03,
                .update_val             = 0x01,
                .update_val_idle        = 0x03,
                .update_val_normal      = 0x01,
                /* values for Vaux4SEL register */
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x2f,
                .voltage_mask           = 0x0f,
        },
        [AB8505_LDO_AUX5] = {
                .desc = {
                        .name           = "LDO-AUX5",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUX5,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vaux56_voltages),
                        .volt_table     = ldo_vaux56_voltages,
                },
                .load_lp_uA             = 2000,
                /* values for CtrlVaux5 register */
                .update_bank            = 0x01,
                .update_reg             = 0x55,
                .update_mask            = 0x18,
                .update_val             = 0x10,
                .update_val_idle        = 0x18,
                .update_val_normal      = 0x10,
                .voltage_bank           = 0x01,
                .voltage_reg            = 0x55,
                .voltage_mask           = 0x07,
        },
        [AB8505_LDO_AUX6] = {
                .desc = {
                        .name           = "LDO-AUX6",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUX6,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vaux56_voltages),
                        .volt_table     = ldo_vaux56_voltages,
                },
                .load_lp_uA             = 2000,
                /* values for CtrlVaux6 register */
                .update_bank            = 0x01,
                .update_reg             = 0x56,
                .update_mask            = 0x18,
                .update_val             = 0x10,
                .update_val_idle        = 0x18,
                .update_val_normal      = 0x10,
                .voltage_bank           = 0x01,
                .voltage_reg            = 0x56,
                .voltage_mask           = 0x07,
        },
        [AB8505_LDO_INTCORE] = {
                .desc = {
                        .name           = "LDO-INTCORE",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_INTCORE,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vintcore_voltages),
                        .volt_table     = ldo_vintcore_voltages,
                },
                .load_lp_uA             = 5000,
                .update_bank            = 0x03,
                .update_reg             = 0x80,
                .update_mask            = 0x44,
                .update_val             = 0x04,
                .update_val_idle        = 0x44,
                .update_val_normal      = 0x04,
                .voltage_bank           = 0x03,
                .voltage_reg            = 0x80,
                .voltage_mask           = 0x38,
        },

        /*
         * Fixed Voltage Regulators
         *   name, fixed mV,
         *   update bank, reg, mask, enable val
         */
        [AB8505_LDO_ADC] = {
                .desc = {
                        .name           = "LDO-ADC",
                        .ops            = &ab8500_regulator_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_ADC,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .volt_table     = fixed_2000000_voltage,
                        .enable_time    = 10000,
                },
                .load_lp_uA             = 1000,
                .update_bank            = 0x03,
                .update_reg             = 0x80,
                .update_mask            = 0x82,
                .update_val             = 0x02,
                .update_val_idle        = 0x82,
                .update_val_normal      = 0x02,
        },
        [AB8505_LDO_AUDIO] = {
                .desc = {
                        .name           = "LDO-AUDIO",
                        .ops            = &ab8500_regulator_volt_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUDIO,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vaudio_voltages),
                        .volt_table     = ldo_vaudio_voltages,
                },
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x02,
                .update_val             = 0x02,
                .voltage_bank           = 0x01,
                .voltage_reg            = 0x57,
                .voltage_mask           = 0x70,
        },
        [AB8505_LDO_ANAMIC1] = {
                .desc = {
                        .name           = "LDO-ANAMIC1",
                        .ops            = &ab8500_regulator_anamic_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_ANAMIC1,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .volt_table     = fixed_2050000_voltage,
                },
                .shared_mode            = &ldo_anamic1_shared,
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x08,
                .update_val             = 0x08,
                .mode_bank              = 0x01,
                .mode_reg               = 0x54,
                .mode_mask              = 0x04,
                .mode_val_idle          = 0x04,
                .mode_val_normal        = 0x00,
        },
        [AB8505_LDO_ANAMIC2] = {
                .desc = {
                        .name           = "LDO-ANAMIC2",
                        .ops            = &ab8500_regulator_anamic_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_ANAMIC2,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .volt_table     = fixed_2050000_voltage,
                },
                .shared_mode            = &ldo_anamic2_shared,
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x10,
                .update_val             = 0x10,
                .mode_bank              = 0x01,
                .mode_reg               = 0x54,
                .mode_mask              = 0x04,
                .mode_val_idle          = 0x04,
                .mode_val_normal        = 0x00,
        },
        [AB8505_LDO_AUX8] = {
                .desc = {
                        .name           = "LDO-AUX8",
                        .ops            = &ab8500_regulator_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_AUX8,
                        .owner          = THIS_MODULE,
                        .n_voltages     = 1,
                        .volt_table     = fixed_1800000_voltage,
                },
                .update_bank            = 0x03,
                .update_reg             = 0x83,
                .update_mask            = 0x04,
                .update_val             = 0x04,
        },
        /*
         * Regulators with fixed voltage and normal/idle modes
         */
        [AB8505_LDO_ANA] = {
                .desc = {
                        .name           = "LDO-ANA",
                        .ops            = &ab8500_regulator_volt_mode_ops,
                        .type           = REGULATOR_VOLTAGE,
                        .id             = AB8505_LDO_ANA,
                        .owner          = THIS_MODULE,
                        .n_voltages     = ARRAY_SIZE(ldo_vana_voltages),
                        .volt_table     = ldo_vana_voltages,
                },
                .load_lp_uA             = 1000,
                .update_bank            = 0x04,
                .update_reg             = 0x06,
                .update_mask            = 0x0c,
                .update_val             = 0x04,
                .update_val_idle        = 0x0c,
                .update_val_normal      = 0x04,
                .voltage_bank           = 0x04,
                .voltage_reg            = 0x29,
                .voltage_mask           = 0x7,
        },
};

static struct ab8500_shared_mode ldo_anamic1_shared = {
        .shared_regulator = &ab8505_regulator_info[AB8505_LDO_ANAMIC2],
};

static struct ab8500_shared_mode ldo_anamic2_shared = {
        .shared_regulator = &ab8505_regulator_info[AB8505_LDO_ANAMIC1],
};

struct ab8500_reg_init {
        u8 bank;
        u8 addr;
        u8 mask;
};

#define REG_INIT(_id, _bank, _addr, _mask)      \
        [_id] = {                               \
                .bank = _bank,                  \
                .addr = _addr,                  \
                .mask = _mask,                  \
        }

/* AB8500 register init */
static struct ab8500_reg_init ab8500_reg_init[] = {
        /*
         * 0x30, VanaRequestCtrl
         * 0xc0, VextSupply1RequestCtrl
         */
        REG_INIT(AB8500_REGUREQUESTCTRL2,       0x03, 0x04, 0xf0),
        /*
         * 0x03, VextSupply2RequestCtrl
         * 0x0c, VextSupply3RequestCtrl
         * 0x30, Vaux1RequestCtrl
         * 0xc0, Vaux2RequestCtrl
         */
        REG_INIT(AB8500_REGUREQUESTCTRL3,       0x03, 0x05, 0xff),
        /*
         * 0x03, Vaux3RequestCtrl
         * 0x04, SwHPReq
         */
        REG_INIT(AB8500_REGUREQUESTCTRL4,       0x03, 0x06, 0x07),
        /*
         * 0x08, VanaSysClkReq1HPValid
         * 0x20, Vaux1SysClkReq1HPValid
         * 0x40, Vaux2SysClkReq1HPValid
         * 0x80, Vaux3SysClkReq1HPValid
         */
        REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1, 0x03, 0x07, 0xe8),
        /*
         * 0x10, VextSupply1SysClkReq1HPValid
         * 0x20, VextSupply2SysClkReq1HPValid
         * 0x40, VextSupply3SysClkReq1HPValid
         */
        REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2, 0x03, 0x08, 0x70),
        /*
         * 0x08, VanaHwHPReq1Valid
         * 0x20, Vaux1HwHPReq1Valid
         * 0x40, Vaux2HwHPReq1Valid
         * 0x80, Vaux3HwHPReq1Valid
         */
        REG_INIT(AB8500_REGUHWHPREQ1VALID1,     0x03, 0x09, 0xe8),
        /*
         * 0x01, VextSupply1HwHPReq1Valid
         * 0x02, VextSupply2HwHPReq1Valid
         * 0x04, VextSupply3HwHPReq1Valid
         */
        REG_INIT(AB8500_REGUHWHPREQ1VALID2,     0x03, 0x0a, 0x07),
        /*
         * 0x08, VanaHwHPReq2Valid
         * 0x20, Vaux1HwHPReq2Valid
         * 0x40, Vaux2HwHPReq2Valid
         * 0x80, Vaux3HwHPReq2Valid
         */
        REG_INIT(AB8500_REGUHWHPREQ2VALID1,     0x03, 0x0b, 0xe8),
        /*
         * 0x01, VextSupply1HwHPReq2Valid
         * 0x02, VextSupply2HwHPReq2Valid
         * 0x04, VextSupply3HwHPReq2Valid
         */
        REG_INIT(AB8500_REGUHWHPREQ2VALID2,     0x03, 0x0c, 0x07),
        /*
         * 0x20, VanaSwHPReqValid
         * 0x80, Vaux1SwHPReqValid
         */
        REG_INIT(AB8500_REGUSWHPREQVALID1,      0x03, 0x0d, 0xa0),
        /*
         * 0x01, Vaux2SwHPReqValid
         * 0x02, Vaux3SwHPReqValid
         * 0x04, VextSupply1SwHPReqValid
         * 0x08, VextSupply2SwHPReqValid
         * 0x10, VextSupply3SwHPReqValid
         */
        REG_INIT(AB8500_REGUSWHPREQVALID2,      0x03, 0x0e, 0x1f),
        /*
         * 0x02, SysClkReq2Valid1
         * 0x04, SysClkReq3Valid1
         * 0x08, SysClkReq4Valid1
         * 0x10, SysClkReq5Valid1
         * 0x20, SysClkReq6Valid1
         * 0x40, SysClkReq7Valid1
         * 0x80, SysClkReq8Valid1
         */
        REG_INIT(AB8500_REGUSYSCLKREQVALID1,    0x03, 0x0f, 0xfe),
        /*
         * 0x02, SysClkReq2Valid2
         * 0x04, SysClkReq3Valid2
         * 0x08, SysClkReq4Valid2
         * 0x10, SysClkReq5Valid2
         * 0x20, SysClkReq6Valid2
         * 0x40, SysClkReq7Valid2
         * 0x80, SysClkReq8Valid2
         */
        REG_INIT(AB8500_REGUSYSCLKREQVALID2,    0x03, 0x10, 0xfe),
        /*
         * 0x02, VTVoutEna
         * 0x04, Vintcore12Ena
         * 0x38, Vintcore12Sel
         * 0x40, Vintcore12LP
         * 0x80, VTVoutLP
         */
        REG_INIT(AB8500_REGUMISC1,              0x03, 0x80, 0xfe),
        /*
         * 0x02, VaudioEna
         * 0x04, VdmicEna
         * 0x08, Vamic1Ena
         * 0x10, Vamic2Ena
         */
        REG_INIT(AB8500_VAUDIOSUPPLY,           0x03, 0x83, 0x1e),
        /*
         * 0x01, Vamic1_dzout
         * 0x02, Vamic2_dzout
         */
        REG_INIT(AB8500_REGUCTRL1VAMIC,         0x03, 0x84, 0x03),
        /*
         * 0x03, VpllRegu (NOTE! PRCMU register bits)
         * 0x0c, VanaRegu
         */
        REG_INIT(AB8500_VPLLVANAREGU,           0x04, 0x06, 0x0f),
        /*
         * 0x01, VrefDDREna
         * 0x02, VrefDDRSleepMode
         */
        REG_INIT(AB8500_VREFDDR,                0x04, 0x07, 0x03),
        /*
         * 0x03, VextSupply1Regu
         * 0x0c, VextSupply2Regu
         * 0x30, VextSupply3Regu
         * 0x40, ExtSupply2Bypass
         * 0x80, ExtSupply3Bypass
         */
        REG_INIT(AB8500_EXTSUPPLYREGU,          0x04, 0x08, 0xff),
        /*
         * 0x03, Vaux1Regu
         * 0x0c, Vaux2Regu
         */
        REG_INIT(AB8500_VAUX12REGU,             0x04, 0x09, 0x0f),
        /*
         * 0x03, Vaux3Regu
         */
        REG_INIT(AB8500_VRF1VAUX3REGU,          0x04, 0x0a, 0x03),
        /*
         * 0x0f, Vaux1Sel
         */
        REG_INIT(AB8500_VAUX1SEL,               0x04, 0x1f, 0x0f),
        /*
         * 0x0f, Vaux2Sel
         */
        REG_INIT(AB8500_VAUX2SEL,               0x04, 0x20, 0x0f),
        /*
         * 0x07, Vaux3Sel
         */
        REG_INIT(AB8500_VRF1VAUX3SEL,           0x04, 0x21, 0x07),
        /*
         * 0x01, VextSupply12LP
         */
        REG_INIT(AB8500_REGUCTRL2SPARE,         0x04, 0x22, 0x01),
        /*
         * 0x04, Vaux1Disch
         * 0x08, Vaux2Disch
         * 0x10, Vaux3Disch
         * 0x20, Vintcore12Disch
         * 0x40, VTVoutDisch
         * 0x80, VaudioDisch
         */
        REG_INIT(AB8500_REGUCTRLDISCH,          0x04, 0x43, 0xfc),
        /*
         * 0x02, VanaDisch
         * 0x04, VdmicPullDownEna
         * 0x10, VdmicDisch
         */
        REG_INIT(AB8500_REGUCTRLDISCH2,         0x04, 0x44, 0x16),
};

/* AB8505 register init */
static struct ab8500_reg_init ab8505_reg_init[] = {
        /*
         * 0x03, VarmRequestCtrl
         * 0x0c, VsmpsCRequestCtrl
         * 0x30, VsmpsARequestCtrl
         * 0xc0, VsmpsBRequestCtrl
         */
        REG_INIT(AB8505_REGUREQUESTCTRL1,       0x03, 0x03, 0xff),
        /*
         * 0x03, VsafeRequestCtrl
         * 0x0c, VpllRequestCtrl
         * 0x30, VanaRequestCtrl
         */
        REG_INIT(AB8505_REGUREQUESTCTRL2,       0x03, 0x04, 0x3f),
        /*
         * 0x30, Vaux1RequestCtrl
         * 0xc0, Vaux2RequestCtrl
         */
        REG_INIT(AB8505_REGUREQUESTCTRL3,       0x03, 0x05, 0xf0),
        /*
         * 0x03, Vaux3RequestCtrl
         * 0x04, SwHPReq
         */
        REG_INIT(AB8505_REGUREQUESTCTRL4,       0x03, 0x06, 0x07),
        /*
         * 0x01, VsmpsASysClkReq1HPValid
         * 0x02, VsmpsBSysClkReq1HPValid
         * 0x04, VsafeSysClkReq1HPValid
         * 0x08, VanaSysClkReq1HPValid
         * 0x10, VpllSysClkReq1HPValid
         * 0x20, Vaux1SysClkReq1HPValid
         * 0x40, Vaux2SysClkReq1HPValid
         * 0x80, Vaux3SysClkReq1HPValid
         */
        REG_INIT(AB8505_REGUSYSCLKREQ1HPVALID1, 0x03, 0x07, 0xff),
        /*
         * 0x01, VsmpsCSysClkReq1HPValid
         * 0x02, VarmSysClkReq1HPValid
         * 0x04, VbbSysClkReq1HPValid
         * 0x08, VsmpsMSysClkReq1HPValid
         */
        REG_INIT(AB8505_REGUSYSCLKREQ1HPVALID2, 0x03, 0x08, 0x0f),
        /*
         * 0x01, VsmpsAHwHPReq1Valid
         * 0x02, VsmpsBHwHPReq1Valid
         * 0x04, VsafeHwHPReq1Valid
         * 0x08, VanaHwHPReq1Valid
         * 0x10, VpllHwHPReq1Valid
         * 0x20, Vaux1HwHPReq1Valid
         * 0x40, Vaux2HwHPReq1Valid
         * 0x80, Vaux3HwHPReq1Valid
         */
        REG_INIT(AB8505_REGUHWHPREQ1VALID1,     0x03, 0x09, 0xff),
        /*
         * 0x08, VsmpsMHwHPReq1Valid
         */
        REG_INIT(AB8505_REGUHWHPREQ1VALID2,     0x03, 0x0a, 0x08),
        /*
         * 0x01, VsmpsAHwHPReq2Valid
         * 0x02, VsmpsBHwHPReq2Valid
         * 0x04, VsafeHwHPReq2Valid
         * 0x08, VanaHwHPReq2Valid
         * 0x10, VpllHwHPReq2Valid
         * 0x20, Vaux1HwHPReq2Valid
         * 0x40, Vaux2HwHPReq2Valid
         * 0x80, Vaux3HwHPReq2Valid
         */
        REG_INIT(AB8505_REGUHWHPREQ2VALID1,     0x03, 0x0b, 0xff),
        /*
         * 0x08, VsmpsMHwHPReq2Valid
         */
        REG_INIT(AB8505_REGUHWHPREQ2VALID2,     0x03, 0x0c, 0x08),
        /*
         * 0x01, VsmpsCSwHPReqValid
         * 0x02, VarmSwHPReqValid
         * 0x04, VsmpsASwHPReqValid
         * 0x08, VsmpsBSwHPReqValid
         * 0x10, VsafeSwHPReqValid
         * 0x20, VanaSwHPReqValid
         * 0x40, VpllSwHPReqValid
         * 0x80, Vaux1SwHPReqValid
         */
        REG_INIT(AB8505_REGUSWHPREQVALID1,      0x03, 0x0d, 0xff),
        /*
         * 0x01, Vaux2SwHPReqValid
         * 0x02, Vaux3SwHPReqValid
         * 0x20, VsmpsMSwHPReqValid
         */
        REG_INIT(AB8505_REGUSWHPREQVALID2,      0x03, 0x0e, 0x23),
        /*
         * 0x02, SysClkReq2Valid1
         * 0x04, SysClkReq3Valid1
         * 0x08, SysClkReq4Valid1
         */
        REG_INIT(AB8505_REGUSYSCLKREQVALID1,    0x03, 0x0f, 0x0e),
        /*
         * 0x02, SysClkReq2Valid2
         * 0x04, SysClkReq3Valid2
         * 0x08, SysClkReq4Valid2
         */
        REG_INIT(AB8505_REGUSYSCLKREQVALID2,    0x03, 0x10, 0x0e),
        /*
         * 0x01, Vaux4SwHPReqValid
         * 0x02, Vaux4HwHPReq2Valid
         * 0x04, Vaux4HwHPReq1Valid
         * 0x08, Vaux4SysClkReq1HPValid
         */
        REG_INIT(AB8505_REGUVAUX4REQVALID,      0x03, 0x11, 0x0f),
        /*
         * 0x02, VadcEna
         * 0x04, VintCore12Ena
         * 0x38, VintCore12Sel
         * 0x40, VintCore12LP
         * 0x80, VadcLP
         */
        REG_INIT(AB8505_REGUMISC1,              0x03, 0x80, 0xfe),
        /*
         * 0x02, VaudioEna
         * 0x04, VdmicEna
         * 0x08, Vamic1Ena
         * 0x10, Vamic2Ena
         */
        REG_INIT(AB8505_VAUDIOSUPPLY,           0x03, 0x83, 0x1e),
        /*
         * 0x01, Vamic1_dzout
         * 0x02, Vamic2_dzout
         */
        REG_INIT(AB8505_REGUCTRL1VAMIC,         0x03, 0x84, 0x03),
        /*
         * 0x03, VsmpsARegu
         * 0x0c, VsmpsASelCtrl
         * 0x10, VsmpsAAutoMode
         * 0x20, VsmpsAPWMMode
         */
        REG_INIT(AB8505_VSMPSAREGU,             0x04, 0x03, 0x3f),
        /*
         * 0x03, VsmpsBRegu
         * 0x0c, VsmpsBSelCtrl
         * 0x10, VsmpsBAutoMode
         * 0x20, VsmpsBPWMMode
         */
        REG_INIT(AB8505_VSMPSBREGU,             0x04, 0x04, 0x3f),
        /*
         * 0x03, VsafeRegu
         * 0x0c, VsafeSelCtrl
         * 0x10, VsafeAutoMode
         * 0x20, VsafePWMMode
         */
        REG_INIT(AB8505_VSAFEREGU,              0x04, 0x05, 0x3f),
        /*
         * 0x03, VpllRegu (NOTE! PRCMU register bits)
         * 0x0c, VanaRegu
         */
        REG_INIT(AB8505_VPLLVANAREGU,           0x04, 0x06, 0x0f),
        /*
         * 0x03, VextSupply1Regu
         * 0x0c, VextSupply2Regu
         * 0x30, VextSupply3Regu
         * 0x40, ExtSupply2Bypass
         * 0x80, ExtSupply3Bypass
         */
        REG_INIT(AB8505_EXTSUPPLYREGU,          0x04, 0x08, 0xff),
        /*
         * 0x03, Vaux1Regu
         * 0x0c, Vaux2Regu
         */
        REG_INIT(AB8505_VAUX12REGU,             0x04, 0x09, 0x0f),
        /*
         * 0x0f, Vaux3Regu
         */
        REG_INIT(AB8505_VRF1VAUX3REGU,          0x04, 0x0a, 0x0f),
        /*
         * 0x3f, VsmpsASel1
         */
        REG_INIT(AB8505_VSMPSASEL1,             0x04, 0x13, 0x3f),
        /*
         * 0x3f, VsmpsASel2
         */
        REG_INIT(AB8505_VSMPSASEL2,             0x04, 0x14, 0x3f),
        /*
         * 0x3f, VsmpsASel3
         */
        REG_INIT(AB8505_VSMPSASEL3,             0x04, 0x15, 0x3f),
        /*
         * 0x3f, VsmpsBSel1
         */
        REG_INIT(AB8505_VSMPSBSEL1,             0x04, 0x17, 0x3f),
        /*
         * 0x3f, VsmpsBSel2
         */
        REG_INIT(AB8505_VSMPSBSEL2,             0x04, 0x18, 0x3f),
        /*
         * 0x3f, VsmpsBSel3
         */
        REG_INIT(AB8505_VSMPSBSEL3,             0x04, 0x19, 0x3f),
        /*
         * 0x7f, VsafeSel1
         */
        REG_INIT(AB8505_VSAFESEL1,              0x04, 0x1b, 0x7f),
        /*
         * 0x3f, VsafeSel2
         */
        REG_INIT(AB8505_VSAFESEL2,              0x04, 0x1c, 0x7f),
        /*
         * 0x3f, VsafeSel3
         */
        REG_INIT(AB8505_VSAFESEL3,              0x04, 0x1d, 0x7f),
        /*
         * 0x0f, Vaux1Sel
         */
        REG_INIT(AB8505_VAUX1SEL,               0x04, 0x1f, 0x0f),
        /*
         * 0x0f, Vaux2Sel
         */
        REG_INIT(AB8505_VAUX2SEL,               0x04, 0x20, 0x0f),
        /*
         * 0x07, Vaux3Sel
         * 0x30, VRF1Sel
         */
        REG_INIT(AB8505_VRF1VAUX3SEL,           0x04, 0x21, 0x37),
        /*
         * 0x03, Vaux4RequestCtrl
         */
        REG_INIT(AB8505_VAUX4REQCTRL,           0x04, 0x2d, 0x03),
        /*
         * 0x03, Vaux4Regu
         */
        REG_INIT(AB8505_VAUX4REGU,              0x04, 0x2e, 0x03),
        /*
         * 0x0f, Vaux4Sel
         */
        REG_INIT(AB8505_VAUX4SEL,               0x04, 0x2f, 0x0f),
        /*
         * 0x04, Vaux1Disch
         * 0x08, Vaux2Disch
         * 0x10, Vaux3Disch
         * 0x20, Vintcore12Disch
         * 0x40, VTVoutDisch
         * 0x80, VaudioDisch
         */
        REG_INIT(AB8505_REGUCTRLDISCH,          0x04, 0x43, 0xfc),
        /*
         * 0x02, VanaDisch
         * 0x04, VdmicPullDownEna
         * 0x10, VdmicDisch
         */
        REG_INIT(AB8505_REGUCTRLDISCH2,         0x04, 0x44, 0x16),
        /*
         * 0x01, Vaux4Disch
         */
        REG_INIT(AB8505_REGUCTRLDISCH3,         0x04, 0x48, 0x01),
        /*
         * 0x07, Vaux5Sel
         * 0x08, Vaux5LP
         * 0x10, Vaux5Ena
         * 0x20, Vaux5Disch
         * 0x40, Vaux5DisSfst
         * 0x80, Vaux5DisPulld
         */
        REG_INIT(AB8505_CTRLVAUX5,              0x01, 0x55, 0xff),
        /*
         * 0x07, Vaux6Sel
         * 0x08, Vaux6LP
         * 0x10, Vaux6Ena
         * 0x80, Vaux6DisPulld
         */
        REG_INIT(AB8505_CTRLVAUX6,              0x01, 0x56, 0x9f),
};

static struct of_regulator_match ab8500_regulator_match[] = {
        { .name = "ab8500_ldo_aux1",    .driver_data = (void *) AB8500_LDO_AUX1, },
        { .name = "ab8500_ldo_aux2",    .driver_data = (void *) AB8500_LDO_AUX2, },
        { .name = "ab8500_ldo_aux3",    .driver_data = (void *) AB8500_LDO_AUX3, },
        { .name = "ab8500_ldo_intcore", .driver_data = (void *) AB8500_LDO_INTCORE, },
        { .name = "ab8500_ldo_tvout",   .driver_data = (void *) AB8500_LDO_TVOUT, },
        { .name = "ab8500_ldo_audio",   .driver_data = (void *) AB8500_LDO_AUDIO, },
        { .name = "ab8500_ldo_anamic1", .driver_data = (void *) AB8500_LDO_ANAMIC1, },
        { .name = "ab8500_ldo_anamic2", .driver_data = (void *) AB8500_LDO_ANAMIC2, },
        { .name = "ab8500_ldo_dmic",    .driver_data = (void *) AB8500_LDO_DMIC, },
        { .name = "ab8500_ldo_ana",     .driver_data = (void *) AB8500_LDO_ANA, },
};

static struct of_regulator_match ab8505_regulator_match[] = {
        { .name = "ab8500_ldo_aux1",    .driver_data = (void *) AB8505_LDO_AUX1, },
        { .name = "ab8500_ldo_aux2",    .driver_data = (void *) AB8505_LDO_AUX2, },
        { .name = "ab8500_ldo_aux3",    .driver_data = (void *) AB8505_LDO_AUX3, },
        { .name = "ab8500_ldo_aux4",    .driver_data = (void *) AB8505_LDO_AUX4, },
        { .name = "ab8500_ldo_aux5",    .driver_data = (void *) AB8505_LDO_AUX5, },
        { .name = "ab8500_ldo_aux6",    .driver_data = (void *) AB8505_LDO_AUX6, },
        { .name = "ab8500_ldo_intcore", .driver_data = (void *) AB8505_LDO_INTCORE, },
        { .name = "ab8500_ldo_adc",     .driver_data = (void *) AB8505_LDO_ADC, },
        { .name = "ab8500_ldo_audio",   .driver_data = (void *) AB8505_LDO_AUDIO, },
        { .name = "ab8500_ldo_anamic1", .driver_data = (void *) AB8505_LDO_ANAMIC1, },
        { .name = "ab8500_ldo_anamic2", .driver_data = (void *) AB8505_LDO_ANAMIC2, },
        { .name = "ab8500_ldo_aux8",    .driver_data = (void *) AB8505_LDO_AUX8, },
        { .name = "ab8500_ldo_ana",     .driver_data = (void *) AB8505_LDO_ANA, },
};

static struct {
        struct ab8500_regulator_info *info;
        int info_size;
        struct ab8500_reg_init *init;
        int init_size;
        struct of_regulator_match *match;
        int match_size;
} abx500_regulator;

static void abx500_get_regulator_info(struct ab8500 *ab8500)
{
        if (is_ab8505(ab8500)) {
                abx500_regulator.info = ab8505_regulator_info;
                abx500_regulator.info_size = ARRAY_SIZE(ab8505_regulator_info);
                abx500_regulator.init = ab8505_reg_init;
                abx500_regulator.init_size = AB8505_NUM_REGULATOR_REGISTERS;
                abx500_regulator.match = ab8505_regulator_match;
                abx500_regulator.match_size = ARRAY_SIZE(ab8505_regulator_match);
        } else {
                abx500_regulator.info = ab8500_regulator_info;
                abx500_regulator.info_size = ARRAY_SIZE(ab8500_regulator_info);
                abx500_regulator.init = ab8500_reg_init;
                abx500_regulator.init_size = AB8500_NUM_REGULATOR_REGISTERS;
                abx500_regulator.match = ab8500_regulator_match;
                abx500_regulator.match_size = ARRAY_SIZE(ab8500_regulator_match);
        }
}

static int ab8500_regulator_register(struct platform_device *pdev,
                                     struct regulator_init_data *init_data,
                                     int id, struct device_node *np)
{
        struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
        struct ab8500_regulator_info *info = NULL;
        struct regulator_config config = { };
        struct regulator_dev *rdev;

        /* assign per-regulator data */
        info = &abx500_regulator.info[id];
        info->dev = &pdev->dev;

        config.dev = &pdev->dev;
        config.init_data = init_data;
        config.driver_data = info;
        config.of_node = np;

        /* fix for hardware before ab8500v2.0 */
        if (is_ab8500_1p1_or_earlier(ab8500)) {
                if (info->desc.id == AB8500_LDO_AUX3) {
                        info->desc.n_voltages =
                                ARRAY_SIZE(ldo_vauxn_voltages);
                        info->desc.volt_table = ldo_vauxn_voltages;
                        info->voltage_mask = 0xf;
                }
        }

        /* register regulator with framework */
        rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);
        if (IS_ERR(rdev)) {
                dev_err(&pdev->dev, "failed to register regulator %s\n",
                        info->desc.name);
                return PTR_ERR(rdev);
        }

        return 0;
}

static int ab8500_regulator_probe(struct platform_device *pdev)
{
        struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
        struct device_node *np = pdev->dev.of_node;
        struct of_regulator_match *match;
        int err, i;

        if (!ab8500) {
                dev_err(&pdev->dev, "null mfd parent\n");
                return -EINVAL;
        }

        abx500_get_regulator_info(ab8500);

        err = of_regulator_match(&pdev->dev, np,
                                 abx500_regulator.match,
                                 abx500_regulator.match_size);
        if (err < 0) {
                dev_err(&pdev->dev,
                        "Error parsing regulator init data: %d\n", err);
                return err;
        }

        match = abx500_regulator.match;
        for (i = 0; i < abx500_regulator.info_size; i++) {
                err = ab8500_regulator_register(pdev, match[i].init_data, i,
                                                match[i].of_node);
                if (err)
                        return err;
        }

        return 0;
}

static struct platform_driver ab8500_regulator_driver = {
        .probe = ab8500_regulator_probe,
        .driver         = {
                .name   = "ab8500-regulator",
                .probe_type = PROBE_PREFER_ASYNCHRONOUS,
        },
};

static int __init ab8500_regulator_init(void)
{
        int ret;

        ret = platform_driver_register(&ab8500_regulator_driver);
        if (ret != 0)
                pr_err("Failed to register ab8500 regulator: %d\n", ret);

        return ret;
}
subsys_initcall(ab8500_regulator_init);

static void __exit ab8500_regulator_exit(void)
{
        platform_driver_unregister(&ab8500_regulator_driver);
}
module_exit(ab8500_regulator_exit);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
MODULE_AUTHOR("Bengt Jonsson <bengt.g.jonsson@stericsson.com>");
MODULE_AUTHOR("Daniel Willerud <daniel.willerud@stericsson.com>");
MODULE_DESCRIPTION("Regulator Driver for ST-Ericsson AB8500 Mixed-Sig PMIC");
MODULE_ALIAS("platform:ab8500-regulator");