// 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 <[email protected]> */ #include <linux/acpi.h> #include <linux/gpio/machine.h> #include <linux/input.h> #include <linux/leds.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" /* Acer Iconia One 7 B1-750 has an Android factory image with everything hardcoded */ static const char * const acer_b1_750_mount_matrix[] = …; static const struct property_entry acer_b1_750_bma250e_props[] = …; static const struct software_node acer_b1_750_bma250e_node = …; static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = …; static struct gpiod_lookup_table acer_b1_750_nvt_ts_gpios = …; static struct gpiod_lookup_table * const acer_b1_750_gpios[] = …; const struct x86_dev_info acer_b1_750_info __initconst = …; /* * 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 x86_gpio_button advantech_mica_071_button __initconst = …; const struct x86_dev_info advantech_mica_071_info __initconst = …; /* * 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[] = …; static const struct software_node chuwi_hi8_gsl1680_node = …; static const char * const chuwi_hi8_mount_matrix[] = …; static const struct property_entry chuwi_hi8_bma250e_props[] = …; static const struct software_node chuwi_hi8_bma250e_node = …; static const struct x86_i2c_client_info chuwi_hi8_i2c_clients[] __initconst = …; static int __init chuwi_hi8_init(struct device *dev) { … } const struct x86_dev_info chuwi_hi8_info __initconst = …; /* * 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 x86_gpio_button cyberbook_t116_buttons[] __initconst = …; const struct x86_dev_info cyberbook_t116_info __initconst = …; #define CZC_EC_EXTRA_PORT … #define CZC_EC_ANDROID_KEYS … static int __init czc_p10t_init(struct device *dev) { … } const struct x86_dev_info czc_p10t __initconst = …; /* Medion Lifetab S10346 tablets have an Android factory image with everything hardcoded */ static const char * const medion_lifetab_s10346_accel_mount_matrix[] = …; static const struct property_entry medion_lifetab_s10346_accel_props[] = …; static const struct software_node medion_lifetab_s10346_accel_node = …; /* 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[] = …; static const struct software_node medion_lifetab_s10346_touchscreen_node = …; static const struct x86_i2c_client_info medion_lifetab_s10346_i2c_clients[] __initconst = …; static struct gpiod_lookup_table medion_lifetab_s10346_goodix_gpios = …; static struct gpiod_lookup_table * const medion_lifetab_s10346_gpios[] = …; const struct x86_dev_info medion_lifetab_s10346_info __initconst = …; /* Nextbook Ares 8 (BYT) tablets have an Android factory image with everything hardcoded */ static const char * const nextbook_ares8_accel_mount_matrix[] = …; static const struct property_entry nextbook_ares8_accel_props[] = …; static const struct software_node nextbook_ares8_accel_node = …; static const struct property_entry nextbook_ares8_touchscreen_props[] = …; static const struct software_node nextbook_ares8_touchscreen_node = …; static const struct x86_i2c_client_info nextbook_ares8_i2c_clients[] __initconst = …; static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = …; const struct x86_dev_info nextbook_ares8_info __initconst = …; /* Nextbook Ares 8A (CHT) tablets have an Android factory image with everything hardcoded */ static const char * const nextbook_ares8a_accel_mount_matrix[] = …; static const struct property_entry nextbook_ares8a_accel_props[] = …; static const struct software_node nextbook_ares8a_accel_node = …; static const struct x86_i2c_client_info nextbook_ares8a_i2c_clients[] __initconst = …; static struct gpiod_lookup_table nextbook_ares8a_ft5416_gpios = …; static struct gpiod_lookup_table * const nextbook_ares8a_gpios[] = …; const struct x86_dev_info nextbook_ares8a_info __initconst = …; /* * 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 x86_gpio_button peaq_c1010_button __initconst = …; const struct x86_dev_info peaq_c1010_info __initconst = …; /* * 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[] = …; static const struct property_entry whitelabel_tm800a550l_accel_props[] = …; static const struct software_node whitelabel_tm800a550l_accel_node = …; static const struct property_entry whitelabel_tm800a550l_goodix_props[] = …; static const struct software_node whitelabel_tm800a550l_goodix_node = …; static const struct x86_i2c_client_info whitelabel_tm800a550l_i2c_clients[] __initconst = …; static struct gpiod_lookup_table whitelabel_tm800a550l_goodix_gpios = …; static struct gpiod_lookup_table * const whitelabel_tm800a550l_gpios[] = …; const struct x86_dev_info whitelabel_tm800a550l_info __initconst = …; /* * 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 = …; static const struct property_entry ktd2026_rgb_led_props[] = …; static const struct software_node ktd2026_rgb_led_node = …; static const struct property_entry ktd2026_blue_led_props[] = …; static const struct software_node ktd2026_blue_led_node = …; static const struct property_entry ktd2026_green_led_props[] = …; static const struct software_node ktd2026_green_led_node = …; static const struct property_entry ktd2026_red_led_props[] = …; static const struct software_node ktd2026_red_led_node = …; static const struct software_node *ktd2026_node_group[] = …; /* * 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 … #define XIAOMI_MIPAD2_LED_MAX_DUTY_NS … static struct pwm_device *xiaomi_mipad2_led_pwm; static int xiaomi_mipad2_brightness_set(struct led_classdev *led_cdev, enum led_brightness val) { … } static int __init xiaomi_mipad2_init(struct device *dev) { … } static void xiaomi_mipad2_exit(void) { … } /* * 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 = …; const struct x86_dev_info xiaomi_mipad2_info __initconst = …;
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