diff options
Diffstat (limited to 'drivers/platform/x86/x86-android-tablets/other.c')
| -rw-r--r-- | drivers/platform/x86/x86-android-tablets/other.c | 883 |
1 files changed, 883 insertions, 0 deletions
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c new file mode 100644 index 000000000000..7532af2d72d1 --- /dev/null +++ b/drivers/platform/x86/x86-android-tablets/other.c @@ -0,0 +1,883 @@ +// 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, +}; |