// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * DMI based code to deal with broken DSDTs on X86 tablets which ship with
 * Android as (part of) the factory image. The factory kernels shipped on these
 * devices typically have a bunch of things hardcoded, rather than specified
 * in their DSDT.
 *
 * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
 */

#include <linux/acpi.h>
#include <linux/gpio/machine.h>
#include <linux/gpio/property.h>
#include <linux/input-event-codes.h>
#include <linux/leds.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>

#include <dt-bindings/leds/common.h>

#include "shared-psy-info.h"
#include "x86-android-tablets.h"

/*
 * Advantech MICA-071
 * This is a standard Windows tablet, but it has an extra "quick launch" button
 * which is not described in the ACPI tables in anyway.
 * Use the x86-android-tablets infra to create a gpio-keys device for this.
 */
static const struct software_node advantech_mica_071_gpio_keys_node = {
        .name = "prog1_key",
};

static const struct property_entry advantech_mica_071_prog1_key_props[] = {
        PROPERTY_ENTRY_U32("linux,code", KEY_PROG1),
        PROPERTY_ENTRY_STRING("label", "prog1_key"),
        PROPERTY_ENTRY_GPIO("gpios", &baytrail_gpiochip_nodes[0], 2, GPIO_ACTIVE_LOW),
        PROPERTY_ENTRY_U32("debounce-interval", 50),
        { }
};

static const struct software_node advantech_mica_071_prog1_key_node = {
        .parent = &advantech_mica_071_gpio_keys_node,
        .properties = advantech_mica_071_prog1_key_props,
};

static const struct software_node *advantech_mica_071_button_swnodes[] = {
        &advantech_mica_071_gpio_keys_node,
        &advantech_mica_071_prog1_key_node,
        NULL
};

const struct x86_dev_info advantech_mica_071_info __initconst = {
        .gpio_button_swnodes = advantech_mica_071_button_swnodes,
        .gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
};

/*
 * When booted with the BIOS set to Android mode the Chuwi Hi8 (CWI509) DSDT
 * contains a whole bunch of bogus ACPI I2C devices and is missing entries
 * for the touchscreen and the accelerometer.
 */
static const struct property_entry chuwi_hi8_gsl1680_props[] = {
        PROPERTY_ENTRY_U32("touchscreen-size-x", 1665),
        PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
        PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
        PROPERTY_ENTRY_BOOL("silead,home-button"),
        PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi8.fw"),
        { }
};

static const struct software_node chuwi_hi8_gsl1680_node = {
        .properties = chuwi_hi8_gsl1680_props,
};

static const char * const chuwi_hi8_mount_matrix[] = {
        "1", "0", "0",
        "0", "-1", "0",
        "0", "0", "1"
};

static const struct property_entry chuwi_hi8_bma250e_props[] = {
        PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", chuwi_hi8_mount_matrix),
        { }
};

static const struct software_node chuwi_hi8_bma250e_node = {
        .properties = chuwi_hi8_bma250e_props,
};

static const struct x86_i2c_client_info chuwi_hi8_i2c_clients[] __initconst = {
        {
                /* Silead touchscreen */
                .board_info = {
                        .type = "gsl1680",
                        .addr = 0x40,
                        .swnode = &chuwi_hi8_gsl1680_node,
                },
                .adapter_path = "\\_SB_.I2C4",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_APIC,
                        .index = 0x44,
                        .trigger = ACPI_EDGE_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                },
        }, {
                /* BMA250E accelerometer */
                .board_info = {
                        .type = "bma250e",
                        .addr = 0x18,
                        .swnode = &chuwi_hi8_bma250e_node,
                },
                .adapter_path = "\\_SB_.I2C3",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_GPIOINT,
                        .chip = "INT33FC:02",
                        .index = 23,
                        .trigger = ACPI_LEVEL_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                        .con_id = "bma250e_irq",
                },
        },
};

static int __init chuwi_hi8_init(struct device *dev)
{
        /*
         * Avoid the acpi_unregister_gsi() call in x86_acpi_irq_helper_get()
         * breaking the touchscreen + logging various errors when the Windows
         * BIOS is used.
         */
        if (acpi_dev_present("MSSL0001", NULL, 1))
                return -ENODEV;

        return 0;
}

const struct x86_dev_info chuwi_hi8_info __initconst = {
        .i2c_client_info = chuwi_hi8_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(chuwi_hi8_i2c_clients),
        .init = chuwi_hi8_init,
};

/*
 * Cyberbook T116 Android version
 * This comes in both Windows and Android versions and even on Android
 * the DSDT is mostly sane. This tablet has 2 extra general purpose buttons
 * in the button row with the power + volume-buttons labeled P and F.
 * Use the x86-android-tablets infra to create a gpio-keys device for these.
 */
static const struct software_node cyberbook_t116_gpio_keys_node = {
        .name = "prog_keys",
};

static const struct property_entry cyberbook_t116_prog1_key_props[] = {
        PROPERTY_ENTRY_U32("linux,code", KEY_PROG1),
        PROPERTY_ENTRY_STRING("label", "prog1_key"),
        PROPERTY_ENTRY_GPIO("gpios", &cherryview_gpiochip_nodes[0], 30, GPIO_ACTIVE_LOW),
        PROPERTY_ENTRY_U32("debounce-interval", 50),
        { }
};

static const struct software_node cyberbook_t116_prog1_key_node = {
        .parent = &cyberbook_t116_gpio_keys_node,
        .properties = cyberbook_t116_prog1_key_props,
};

static const struct property_entry cyberbook_t116_prog2_key_props[] = {
        PROPERTY_ENTRY_U32("linux,code", KEY_PROG2),
        PROPERTY_ENTRY_STRING("label", "prog2_key"),
        PROPERTY_ENTRY_GPIO("gpios", &cherryview_gpiochip_nodes[3], 48, GPIO_ACTIVE_LOW),
        PROPERTY_ENTRY_U32("debounce-interval", 50),
        { }
};

static const struct software_node cyberbook_t116_prog2_key_node = {
        .parent = &cyberbook_t116_gpio_keys_node,
        .properties = cyberbook_t116_prog2_key_props,
};

static const struct software_node *cyberbook_t116_buttons_swnodes[] = {
        &cyberbook_t116_gpio_keys_node,
        &cyberbook_t116_prog1_key_node,
        &cyberbook_t116_prog2_key_node,
        NULL
};

const struct x86_dev_info cyberbook_t116_info __initconst = {
        .gpio_button_swnodes = cyberbook_t116_buttons_swnodes,
        .gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
};

#define CZC_EC_EXTRA_PORT       0x68
#define CZC_EC_ANDROID_KEYS     0x63

static int __init czc_p10t_init(struct device *dev)
{
        /*
         * The device boots up in "Windows 7" mode, when the home button sends a
         * Windows specific key sequence (Left Meta + D) and the second button
         * sends an unknown one while also toggling the Radio Kill Switch.
         * This is a surprising behavior when the second button is labeled "Back".
         *
         * The vendor-supplied Android-x86 build switches the device to a "Android"
         * mode by writing value 0x63 to the I/O port 0x68. This just seems to just
         * set bit 6 on address 0x96 in the EC region; switching the bit directly
         * seems to achieve the same result. It uses a "p10t_switcher" to do the
         * job. It doesn't seem to be able to do anything else, and no other use
         * of the port 0x68 is known.
         *
         * In the Android mode, the home button sends just a single scancode,
         * which can be handled in Linux userspace more reasonably and the back
         * button only sends a scancode without toggling the kill switch.
         * The scancode can then be mapped either to Back or RF Kill functionality
         * in userspace, depending on how the button is labeled on that particular
         * model.
         */
        outb(CZC_EC_ANDROID_KEYS, CZC_EC_EXTRA_PORT);
        return 0;
}

const struct x86_dev_info czc_p10t __initconst = {
        .init = czc_p10t_init,
};

/* Medion Lifetab S10346 tablets have an Android factory image with everything hardcoded */
static const char * const medion_lifetab_s10346_accel_mount_matrix[] = {
        "0", "1", "0",
        "1", "0", "0",
        "0", "0", "1"
};

static const struct property_entry medion_lifetab_s10346_accel_props[] = {
        PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", medion_lifetab_s10346_accel_mount_matrix),
        { }
};

static const struct software_node medion_lifetab_s10346_accel_node = {
        .properties = medion_lifetab_s10346_accel_props,
};

/* Note the LCD panel is mounted upside down, this is correctly indicated in the VBT */
static const struct property_entry medion_lifetab_s10346_touchscreen_props[] = {
        PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
        PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
        PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_HIGH),
        PROPERTY_ENTRY_GPIO("irq-gpios", &baytrail_gpiochip_nodes[2], 3, GPIO_ACTIVE_HIGH),
        { }
};

static const struct software_node medion_lifetab_s10346_touchscreen_node = {
        .properties = medion_lifetab_s10346_touchscreen_props,
};

static const struct x86_i2c_client_info medion_lifetab_s10346_i2c_clients[] __initconst = {
        {
                /* kxtj21009 accelerometer */
                .board_info = {
                        .type = "kxtj21009",
                        .addr = 0x0f,
                        .dev_name = "kxtj21009",
                        .swnode = &medion_lifetab_s10346_accel_node,
                },
                .adapter_path = "\\_SB_.I2C3",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_GPIOINT,
                        .chip = "INT33FC:02",
                        .index = 23,
                        .trigger = ACPI_EDGE_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                        .con_id = "kxtj21009_irq",
                },
        }, {
                /* goodix touchscreen */
                .board_info = {
                        .type = "GDIX1001:00",
                        .addr = 0x14,
                        .dev_name = "goodix_ts",
                        .swnode = &medion_lifetab_s10346_touchscreen_node,
                },
                .adapter_path = "\\_SB_.I2C4",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_APIC,
                        .index = 0x44,
                        .trigger = ACPI_EDGE_SENSITIVE,
                        .polarity = ACPI_ACTIVE_LOW,
                },
        },
};

const struct x86_dev_info medion_lifetab_s10346_info __initconst = {
        .i2c_client_info = medion_lifetab_s10346_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(medion_lifetab_s10346_i2c_clients),
        .gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
};

/* Nextbook Ares 8 (BYT) tablets have an Android factory image with everything hardcoded */
static const char * const nextbook_ares8_accel_mount_matrix[] = {
        "0", "-1", "0",
        "-1", "0", "0",
        "0", "0", "1"
};

static const struct property_entry nextbook_ares8_accel_props[] = {
        PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", nextbook_ares8_accel_mount_matrix),
        { }
};

static const struct software_node nextbook_ares8_accel_node = {
        .properties = nextbook_ares8_accel_props,
};

static const struct property_entry nextbook_ares8_touchscreen_props[] = {
        PROPERTY_ENTRY_U32("touchscreen-size-x", 800),
        PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
        { }
};

static const struct software_node nextbook_ares8_touchscreen_node = {
        .properties = nextbook_ares8_touchscreen_props,
};

static const struct x86_i2c_client_info nextbook_ares8_i2c_clients[] __initconst = {
        {
                /* Freescale MMA8653FC accelerometer */
                .board_info = {
                        .type = "mma8653",
                        .addr = 0x1d,
                        .dev_name = "mma8653",
                        .swnode = &nextbook_ares8_accel_node,
                },
                .adapter_path = "\\_SB_.I2C3",
        }, {
                /* FT5416DQ9 touchscreen controller */
                .board_info = {
                        .type = "edt-ft5x06",
                        .addr = 0x38,
                        .dev_name = "ft5416",
                        .swnode = &nextbook_ares8_touchscreen_node,
                },
                .adapter_path = "\\_SB_.I2C4",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_GPIOINT,
                        .chip = "INT33FC:02",
                        .index = 3,
                        .trigger = ACPI_EDGE_SENSITIVE,
                        .polarity = ACPI_ACTIVE_LOW,
                        .con_id = "ft5416_irq",
                },
        },
};

const struct x86_dev_info nextbook_ares8_info __initconst = {
        .i2c_client_info = nextbook_ares8_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(nextbook_ares8_i2c_clients),
        .pdev_info = int3496_pdevs,
        .pdev_count = 1,
        .gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
};

/* Nextbook Ares 8A (CHT) tablets have an Android factory image with everything hardcoded */
static const char * const nextbook_ares8a_accel_mount_matrix[] = {
        "1", "0", "0",
        "0", "-1", "0",
        "0", "0", "1"
};

static const struct property_entry nextbook_ares8a_accel_props[] = {
        PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", nextbook_ares8a_accel_mount_matrix),
        { }
};

static const struct software_node nextbook_ares8a_accel_node = {
        .properties = nextbook_ares8a_accel_props,
};

static const struct property_entry nextbook_ares8a_ft5416_props[] = {
        PROPERTY_ENTRY_U32("touchscreen-size-x", 800),
        PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
        PROPERTY_ENTRY_GPIO("reset-gpios", &cherryview_gpiochip_nodes[1], 25, GPIO_ACTIVE_LOW),
        { }
};

static const struct software_node nextbook_ares8a_ft5416_node = {
        .properties = nextbook_ares8a_ft5416_props,
};

static const struct x86_i2c_client_info nextbook_ares8a_i2c_clients[] __initconst = {
        {
                /* Freescale MMA8653FC accelerometer */
                .board_info = {
                        .type = "mma8653",
                        .addr = 0x1d,
                        .dev_name = "mma8653",
                        .swnode = &nextbook_ares8a_accel_node,
                },
                .adapter_path = "\\_SB_.PCI0.I2C3",
        }, {
                /* FT5416DQ9 touchscreen controller */
                .board_info = {
                        .type = "edt-ft5x06",
                        .addr = 0x38,
                        .dev_name = "ft5416",
                        .swnode = &nextbook_ares8a_ft5416_node,
                },
                .adapter_path = "\\_SB_.PCI0.I2C6",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_GPIOINT,
                        .chip = "INT33FF:01",
                        .index = 17,
                        .trigger = ACPI_EDGE_SENSITIVE,
                        .polarity = ACPI_ACTIVE_LOW,
                        .con_id = "ft5416_irq",
                },
        },
};

const struct x86_dev_info nextbook_ares8a_info __initconst = {
        .i2c_client_info = nextbook_ares8a_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(nextbook_ares8a_i2c_clients),
        .gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
};

/*
 * Peaq C1010
 * This is a standard Windows tablet, but it has a special Dolby button.
 * This button has a WMI interface, but that is broken. Instead of trying to
 * use the broken WMI interface, instantiate a gpio-keys device for this.
 */
static const struct software_node peaq_c1010_gpio_keys_node = {
        .name = "gpio_keys",
};

static const struct property_entry peaq_c1010_dolby_key_props[] = {
        PROPERTY_ENTRY_U32("linux,code", KEY_SOUND),
        PROPERTY_ENTRY_STRING("label", "dolby_key"),
        PROPERTY_ENTRY_GPIO("gpios", &baytrail_gpiochip_nodes[0], 3, GPIO_ACTIVE_LOW),
        PROPERTY_ENTRY_U32("debounce-interval", 50),
        { }
};

static const struct software_node peaq_c1010_dolby_key_node = {
        .parent = &peaq_c1010_gpio_keys_node,
        .properties = peaq_c1010_dolby_key_props,
};

static const struct software_node *peaq_c1010_button_swnodes[] = {
        &peaq_c1010_gpio_keys_node,
        &peaq_c1010_dolby_key_node,
        NULL
};

const struct x86_dev_info peaq_c1010_info __initconst = {
        .gpio_button_swnodes = peaq_c1010_button_swnodes,
        .gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
};

/*
 * Whitelabel (sold as various brands) TM800A550L tablets.
 * These tablet's DSDT contains a whole bunch of bogus ACPI I2C devices
 * (removed through acpi_quirk_skip_i2c_client_enumeration()) and
 * the touchscreen firmware node has the wrong GPIOs.
 */
static const char * const whitelabel_tm800a550l_accel_mount_matrix[] = {
        "-1", "0", "0",
        "0", "1", "0",
        "0", "0", "1"
};

static const struct property_entry whitelabel_tm800a550l_accel_props[] = {
        PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", whitelabel_tm800a550l_accel_mount_matrix),
        { }
};

static const struct software_node whitelabel_tm800a550l_accel_node = {
        .properties = whitelabel_tm800a550l_accel_props,
};

static const struct property_entry whitelabel_tm800a550l_goodix_props[] = {
        PROPERTY_ENTRY_STRING("firmware-name", "gt912-tm800a550l.fw"),
        PROPERTY_ENTRY_STRING("goodix,config-name", "gt912-tm800a550l.cfg"),
        PROPERTY_ENTRY_U32("goodix,main-clk", 54),
        PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_HIGH),
        PROPERTY_ENTRY_GPIO("irq-gpios", &baytrail_gpiochip_nodes[2], 3, GPIO_ACTIVE_HIGH),
        { }
};

static const struct software_node whitelabel_tm800a550l_goodix_node = {
        .properties = whitelabel_tm800a550l_goodix_props,
};

static const struct x86_i2c_client_info whitelabel_tm800a550l_i2c_clients[] __initconst = {
        {
                /* goodix touchscreen */
                .board_info = {
                        .type = "GDIX1001:00",
                        .addr = 0x14,
                        .dev_name = "goodix_ts",
                        .swnode = &whitelabel_tm800a550l_goodix_node,
                },
                .adapter_path = "\\_SB_.I2C2",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_APIC,
                        .index = 0x44,
                        .trigger = ACPI_EDGE_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                },
        }, {
                /* kxcj91008 accelerometer */
                .board_info = {
                        .type = "kxcj91008",
                        .addr = 0x0f,
                        .dev_name = "kxcj91008",
                        .swnode = &whitelabel_tm800a550l_accel_node,
                },
                .adapter_path = "\\_SB_.I2C3",
        },
};

const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
        .i2c_client_info = whitelabel_tm800a550l_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(whitelabel_tm800a550l_i2c_clients),
        .gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
};

/*
 * Vexia EDU ATLA 10 tablet 5V, Android 4.4 + Guadalinex Ubuntu tablet
 * distributed to schools in the Spanish Andalucía region.
 */
static const struct property_entry vexia_edu_atla10_5v_touchscreen_props[] = {
        PROPERTY_ENTRY_U32("hid-descr-addr", 0x0000),
        PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 120),
        PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_LOW),
        { }
};

static const struct software_node vexia_edu_atla10_5v_touchscreen_node = {
        .properties = vexia_edu_atla10_5v_touchscreen_props,
};

static const struct x86_i2c_client_info vexia_edu_atla10_5v_i2c_clients[] __initconst = {
        {
                /* kxcjk1013 accelerometer */
                .board_info = {
                        .type = "kxcjk1013",
                        .addr = 0x0f,
                        .dev_name = "kxcjk1013",
                },
                .adapter_path = "\\_SB_.I2C3",
        }, {
                /*  touchscreen controller */
                .board_info = {
                        .type = "hid-over-i2c",
                        .addr = 0x38,
                        .dev_name = "FTSC1000",
                        .swnode = &vexia_edu_atla10_5v_touchscreen_node,
                },
                .adapter_path = "\\_SB_.I2C4",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_APIC,
                        .index = 0x44,
                        .trigger = ACPI_LEVEL_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                },
        }
};

const struct x86_dev_info vexia_edu_atla10_5v_info __initconst = {
        .i2c_client_info = vexia_edu_atla10_5v_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(vexia_edu_atla10_5v_i2c_clients),
        .gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
};

/*
 * Vexia EDU ATLA 10 tablet 9V, Android 4.2 + Guadalinex Ubuntu tablet
 * distributed to schools in the Spanish Andalucía region.
 */
static const char * const crystal_cove_pwrsrc_psy[] = { "crystal_cove_pwrsrc" };

static const struct property_entry vexia_edu_atla10_9v_ulpmc_props[] = {
        PROPERTY_ENTRY_STRING_ARRAY("supplied-from", crystal_cove_pwrsrc_psy),
        { }
};

static const struct software_node vexia_edu_atla10_9v_ulpmc_node = {
        .properties = vexia_edu_atla10_9v_ulpmc_props,
};

static const char * const vexia_edu_atla10_9v_accel_mount_matrix[] = {
        "0", "-1", "0",
        "1", "0", "0",
        "0", "0", "1"
};

static const struct property_entry vexia_edu_atla10_9v_accel_props[] = {
        PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", vexia_edu_atla10_9v_accel_mount_matrix),
        { }
};

static const struct software_node vexia_edu_atla10_9v_accel_node = {
        .properties = vexia_edu_atla10_9v_accel_props,
};

static const struct property_entry vexia_edu_atla10_9v_touchscreen_props[] = {
        PROPERTY_ENTRY_U32("hid-descr-addr", 0x0000),
        PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 120),
        PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[0], 60, GPIO_ACTIVE_LOW),
        { }
};

static const struct software_node vexia_edu_atla10_9v_touchscreen_node = {
        .properties = vexia_edu_atla10_9v_touchscreen_props,
};

static const struct property_entry vexia_edu_atla10_9v_pmic_props[] = {
        PROPERTY_ENTRY_BOOL("linux,register-pwrsrc-power_supply"),
        { }
};

static const struct software_node vexia_edu_atla10_9v_pmic_node = {
        .properties = vexia_edu_atla10_9v_pmic_props,
};

static const struct x86_i2c_client_info vexia_edu_atla10_9v_i2c_clients[] __initconst = {
        {
                /* I2C attached embedded controller, used to access fuel-gauge */
                .board_info = {
                        .type = "vexia_atla10_ec",
                        .addr = 0x76,
                        .dev_name = "ulpmc",
                        .swnode = &vexia_edu_atla10_9v_ulpmc_node,
                },
                .adapter_path = "0000:00:18.1",
        }, {
                /* RT5642 audio codec */
                .board_info = {
                        .type = "rt5640",
                        .addr = 0x1c,
                        .dev_name = "rt5640",
                },
                .adapter_path = "0000:00:18.2",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_GPIOINT,
                        .chip = "INT33FC:02",
                        .index = 4,
                        .trigger = ACPI_EDGE_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                        .con_id = "rt5640_irq",
                },
        }, {
                /* kxtj21009 accelerometer */
                .board_info = {
                        .type = "kxtj21009",
                        .addr = 0x0f,
                        .dev_name = "kxtj21009",
                        .swnode = &vexia_edu_atla10_9v_accel_node,
                },
                .adapter_path = "0000:00:18.5",
        }, {
                /* FT5416DQ9 touchscreen controller */
                .board_info = {
                        .type = "hid-over-i2c",
                        .addr = 0x38,
                        .dev_name = "FTSC1000",
                        .swnode = &vexia_edu_atla10_9v_touchscreen_node,
                },
                .adapter_path = "0000:00:18.6",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_APIC,
                        .index = 0x45,
                        .trigger = ACPI_LEVEL_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                },
        }, {
                /* Crystal Cove PMIC */
                .board_info = {
                        .type = "intel_soc_pmic_crc",
                        .addr = 0x6e,
                        .dev_name = "intel_soc_pmic_crc",
                        .swnode = &vexia_edu_atla10_9v_pmic_node,
                },
                .adapter_path = "0000:00:18.7",
                .irq_data = {
                        .type = X86_ACPI_IRQ_TYPE_APIC,
                        .index = 0x43,
                        .trigger = ACPI_LEVEL_SENSITIVE,
                        .polarity = ACPI_ACTIVE_HIGH,
                },
        }
};

static const struct x86_serdev_info vexia_edu_atla10_9v_serdevs[] __initconst = {
        {
                .ctrl.pci.devfn = PCI_DEVFN(0x1e, 3),
                .ctrl_devname = "serial0",
                .serdev_hid = "OBDA8723",
        },
};

static int __init vexia_edu_atla10_9v_init(struct device *dev)
{
        struct pci_dev *pdev;
        int ret;

        /* Enable the Wifi module by setting the wifi_enable pin to 1 */
        ret = x86_android_tablet_get_gpiod("INT33FC:02", 20, "wifi_enable",
                                           false, GPIOD_OUT_HIGH, NULL);
        if (ret)
                return ret;

        /* Reprobe the SDIO controller to enumerate the now enabled Wifi module */
        pdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0x11, 0));
        if (!pdev) {
                pr_warn("Could not get PCI SDIO at devfn 0x%02x\n", PCI_DEVFN(0x11, 0));
                return 0;
        }

        ret = device_reprobe(&pdev->dev);
        if (ret)
                pci_warn(pdev, "Reprobing error: %d\n", ret);

        pci_dev_put(pdev);
        return 0;
}

const struct x86_dev_info vexia_edu_atla10_9v_info __initconst = {
        .i2c_client_info = vexia_edu_atla10_9v_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(vexia_edu_atla10_9v_i2c_clients),
        .serdev_info = vexia_edu_atla10_9v_serdevs,
        .serdev_count = ARRAY_SIZE(vexia_edu_atla10_9v_serdevs),
        .init = vexia_edu_atla10_9v_init,
        .use_pci = true,
        .gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
};

/*
 * The firmware node for ktd2026 on Xaomi pad2. It composed of a RGB LED node
 * with three subnodes for each color (B/G/R). The RGB LED node is named
 * "multi-led" to align with the name in the device tree.
 */

/* Main firmware node for ktd2026 */
static const struct software_node ktd2026_node = {
        .name = "ktd2026",
};

static const struct property_entry ktd2026_rgb_led_props[] = {
        PROPERTY_ENTRY_U32("reg", 0),
        PROPERTY_ENTRY_U32("color", LED_COLOR_ID_RGB),
        PROPERTY_ENTRY_STRING("label", "mipad2:rgb:indicator"),
        PROPERTY_ENTRY_STRING("linux,default-trigger", "bq27520-0-charging-orange-full-green"),
        { }
};

static const struct software_node ktd2026_rgb_led_node = {
        .name = "multi-led",
        .properties = ktd2026_rgb_led_props,
        .parent = &ktd2026_node,
};

static const struct property_entry ktd2026_blue_led_props[] = {
        PROPERTY_ENTRY_U32("reg", 0),
        PROPERTY_ENTRY_U32("color", LED_COLOR_ID_BLUE),
        { }
};

static const struct software_node ktd2026_blue_led_node = {
        .properties = ktd2026_blue_led_props,
        .parent = &ktd2026_rgb_led_node,
};

static const struct property_entry ktd2026_green_led_props[] = {
        PROPERTY_ENTRY_U32("reg", 1),
        PROPERTY_ENTRY_U32("color", LED_COLOR_ID_GREEN),
        { }
};

static const struct software_node ktd2026_green_led_node = {
        .properties = ktd2026_green_led_props,
        .parent = &ktd2026_rgb_led_node,
};

static const struct property_entry ktd2026_red_led_props[] = {
        PROPERTY_ENTRY_U32("reg", 2),
        PROPERTY_ENTRY_U32("color", LED_COLOR_ID_RED),
        { }
};

static const struct software_node ktd2026_red_led_node = {
        .properties = ktd2026_red_led_props,
        .parent = &ktd2026_rgb_led_node,
};

static const struct software_node *ktd2026_node_group[] = {
        &ktd2026_node,
        &ktd2026_rgb_led_node,
        &ktd2026_red_led_node,
        &ktd2026_green_led_node,
        &ktd2026_blue_led_node,
        NULL
};

/*
 * For the LEDs which backlight the Menu / Home / Back capacitive buttons on
 * the bottom bezel. These are attached to a TPS61158 LED controller which
 * is controlled by the "pwm_soc_lpss_2" PWM output.
 */
#define XIAOMI_MIPAD2_LED_PERIOD_NS             19200
#define XIAOMI_MIPAD2_LED_MAX_DUTY_NS            6000 /* From Android kernel */

static struct pwm_device *xiaomi_mipad2_led_pwm;

static int xiaomi_mipad2_brightness_set(struct led_classdev *led_cdev,
                                        enum led_brightness val)
{
        struct pwm_state state = {
                .period = XIAOMI_MIPAD2_LED_PERIOD_NS,
                .duty_cycle = XIAOMI_MIPAD2_LED_MAX_DUTY_NS * val / LED_FULL,
                /* Always set PWM enabled to avoid the pin floating */
                .enabled = true,
        };

        return pwm_apply_might_sleep(xiaomi_mipad2_led_pwm, &state);
}

static int __init xiaomi_mipad2_init(struct device *dev)
{
        struct led_classdev *led_cdev;

        xiaomi_mipad2_led_pwm = devm_pwm_get(dev, "pwm_soc_lpss_2");
        if (IS_ERR(xiaomi_mipad2_led_pwm))
                return dev_err_probe(dev, PTR_ERR(xiaomi_mipad2_led_pwm), "getting pwm\n");

        led_cdev = devm_kzalloc(dev, sizeof(*led_cdev), GFP_KERNEL);
        if (!led_cdev)
                return -ENOMEM;

        led_cdev->name = "mipad2:white:touch-buttons-backlight";
        led_cdev->max_brightness = LED_FULL;
        led_cdev->default_trigger = "input-events";
        led_cdev->brightness_set_blocking = xiaomi_mipad2_brightness_set;
        /* Turn LED off during suspend */
        led_cdev->flags = LED_CORE_SUSPENDRESUME;

        return devm_led_classdev_register(dev, led_cdev);
}

/*
 * If the EFI bootloader is not Xiaomi's own signed Android loader, then the
 * Xiaomi Mi Pad 2 X86 tablet sets OSID in the DSDT to 1 (Windows), causing
 * a bunch of devices to be hidden.
 *
 * This takes care of instantiating the hidden devices manually.
 */
static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst = {
        {
                /* BQ27520 fuel-gauge */
                .board_info = {
                        .type = "bq27520",
                        .addr = 0x55,
                        .dev_name = "bq27520",
                        .swnode = &fg_bq25890_supply_node,
                },
                .adapter_path = "\\_SB_.PCI0.I2C1",
        }, {
                /* KTD2026 RGB notification LED controller */
                .board_info = {
                        .type = "ktd2026",
                        .addr = 0x30,
                        .dev_name = "ktd2026",
                        .swnode = &ktd2026_node,
                },
                .adapter_path = "\\_SB_.PCI0.I2C3",
        },
};

const struct x86_dev_info xiaomi_mipad2_info __initconst = {
        .i2c_client_info = xiaomi_mipad2_i2c_clients,
        .i2c_client_count = ARRAY_SIZE(xiaomi_mipad2_i2c_clients),
        .swnode_group = ktd2026_node_group,
        .init = xiaomi_mipad2_init,
};