L: platform-driver-x86@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
-F: drivers/platform/x86/x86-android-tablets.c
+F: drivers/platform/x86/x86-android-tablets/
X86 PLATFORM DRIVERS
M: Hans de Goede <hdegoede@redhat.com>
the OS-image for the device. This option supplies the missing info.
Enable this for x86 tablets with Silead or Chipone touchscreens.
-config X86_ANDROID_TABLETS
- tristate "X86 Android tablet support"
- depends on I2C && SPI && SERIAL_DEV_BUS && ACPI && EFI && GPIOLIB
- help
- X86 tablets which ship with Android as (part of) the factory image
- typically have various problems with their DSDTs. The factory kernels
- shipped on these devices typically have device addresses and GPIOs
- hardcoded in the kernel, rather than specified in their DSDT.
-
- With the DSDT containing a random collection of devices which may or
- may not actually be present. This driver contains various fixes for
- such tablets, including instantiating kernel devices for devices which
- are missing from the DSDT.
-
- If you have a x86 Android tablet say Y or M here, for a generic x86
- distro config say M here.
+source "drivers/platform/x86/x86-android-tablets/Kconfig"
config FW_ATTR_CLASS
tristate
obj-$(CONFIG_MLX_PLATFORM) += mlx-platform.o
obj-$(CONFIG_TOUCHSCREEN_DMI) += touchscreen_dmi.o
obj-$(CONFIG_WIRELESS_HOTKEY) += wireless-hotkey.o
-obj-$(CONFIG_X86_ANDROID_TABLETS) += x86-android-tablets.o
+obj-$(CONFIG_X86_ANDROID_TABLETS) += x86-android-tablets/
# Intel uncore drivers
obj-$(CONFIG_INTEL_IPS) += intel_ips.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * 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) 2021-2022 Hans de Goede <hdegoede@redhat.com>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/acpi.h>
-#include <linux/dmi.h>
-#include <linux/efi.h>
-#include <linux/gpio_keys.h>
-#include <linux/gpio/consumer.h>
-#include <linux/gpio/driver.h>
-#include <linux/gpio/machine.h>
-#include <linux/i2c.h>
-#include <linux/input.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/module.h>
-#include <linux/mod_devicetable.h>
-#include <linux/pinctrl/consumer.h>
-#include <linux/pinctrl/machine.h>
-#include <linux/platform_data/lp855x.h>
-#include <linux/platform_device.h>
-#include <linux/power/bq24190_charger.h>
-#include <linux/reboot.h>
-#include <linux/rmi.h>
-#include <linux/serdev.h>
-#include <linux/spi/spi.h>
-#include <linux/string.h>
-/* For gpio_get_desc() which is EXPORT_SYMBOL_GPL() */
-#include "../../gpio/gpiolib.h"
-#include "../../gpio/gpiolib-acpi.h"
-
-/*
- * Helper code to get Linux IRQ numbers given a description of the IRQ source
- * (either IOAPIC index, or GPIO chip name + pin-number).
- */
-enum x86_acpi_irq_type {
- X86_ACPI_IRQ_TYPE_NONE,
- X86_ACPI_IRQ_TYPE_APIC,
- X86_ACPI_IRQ_TYPE_GPIOINT,
- X86_ACPI_IRQ_TYPE_PMIC,
-};
-
-struct x86_acpi_irq_data {
- char *chip; /* GPIO chip label (GPIOINT) or PMIC ACPI path (PMIC) */
- enum x86_acpi_irq_type type;
- enum irq_domain_bus_token domain;
- int index;
- int trigger; /* ACPI_EDGE_SENSITIVE / ACPI_LEVEL_SENSITIVE */
- int polarity; /* ACPI_ACTIVE_HIGH / ACPI_ACTIVE_LOW / ACPI_ACTIVE_BOTH */
-};
-
-static int gpiochip_find_match_label(struct gpio_chip *gc, void *data)
-{
- return gc->label && !strcmp(gc->label, data);
-}
-
-static int x86_android_tablet_get_gpiod(char *label, int pin, struct gpio_desc **desc)
-{
- struct gpio_desc *gpiod;
- struct gpio_chip *chip;
-
- chip = gpiochip_find(label, gpiochip_find_match_label);
- if (!chip) {
- pr_err("error cannot find GPIO chip %s\n", label);
- return -ENODEV;
- }
-
- gpiod = gpiochip_get_desc(chip, pin);
- if (IS_ERR(gpiod)) {
- pr_err("error %ld getting GPIO %s %d\n", PTR_ERR(gpiod), label, pin);
- return PTR_ERR(gpiod);
- }
-
- *desc = gpiod;
- return 0;
-}
-
-static int x86_acpi_irq_helper_get(const struct x86_acpi_irq_data *data)
-{
- struct irq_fwspec fwspec = { };
- struct irq_domain *domain;
- struct acpi_device *adev;
- struct gpio_desc *gpiod;
- unsigned int irq_type;
- acpi_handle handle;
- acpi_status status;
- int irq, ret;
-
- switch (data->type) {
- case X86_ACPI_IRQ_TYPE_APIC:
- /*
- * The DSDT may already reference the GSI in a device skipped by
- * acpi_quirk_skip_i2c_client_enumeration(). Unregister the GSI
- * to avoid EBUSY errors in this case.
- */
- acpi_unregister_gsi(data->index);
- irq = acpi_register_gsi(NULL, data->index, data->trigger, data->polarity);
- if (irq < 0)
- pr_err("error %d getting APIC IRQ %d\n", irq, data->index);
-
- return irq;
- case X86_ACPI_IRQ_TYPE_GPIOINT:
- /* Like acpi_dev_gpio_irq_get(), but without parsing ACPI resources */
- ret = x86_android_tablet_get_gpiod(data->chip, data->index, &gpiod);
- if (ret)
- return ret;
-
- irq = gpiod_to_irq(gpiod);
- if (irq < 0) {
- pr_err("error %d getting IRQ %s %d\n", irq, data->chip, data->index);
- return irq;
- }
-
- irq_type = acpi_dev_get_irq_type(data->trigger, data->polarity);
- if (irq_type != IRQ_TYPE_NONE && irq_type != irq_get_trigger_type(irq))
- irq_set_irq_type(irq, irq_type);
-
- return irq;
- case X86_ACPI_IRQ_TYPE_PMIC:
- status = acpi_get_handle(NULL, data->chip, &handle);
- if (ACPI_FAILURE(status)) {
- pr_err("error could not get %s handle\n", data->chip);
- return -ENODEV;
- }
-
- adev = acpi_fetch_acpi_dev(handle);
- if (!adev) {
- pr_err("error could not get %s adev\n", data->chip);
- return -ENODEV;
- }
-
- fwspec.fwnode = acpi_fwnode_handle(adev);
- domain = irq_find_matching_fwspec(&fwspec, data->domain);
- if (!domain) {
- pr_err("error could not find IRQ domain for %s\n", data->chip);
- return -ENODEV;
- }
-
- return irq_create_mapping(domain, data->index);
- default:
- return 0;
- }
-}
-
-struct x86_i2c_client_info {
- struct i2c_board_info board_info;
- char *adapter_path;
- struct x86_acpi_irq_data irq_data;
-};
-
-struct x86_serdev_info {
- const char *ctrl_hid;
- const char *ctrl_uid;
- const char *ctrl_devname;
- /*
- * ATM the serdev core only supports of or ACPI matching; and sofar all
- * Android x86 tablets DSDTs have usable serdev nodes, but sometimes
- * under the wrong controller. So we just tie the existing serdev ACPI
- * node to the right controller.
- */
- const char *serdev_hid;
-};
-
-struct x86_dev_info {
- char *invalid_aei_gpiochip;
- const char * const *modules;
- const struct software_node *bat_swnode;
- struct gpiod_lookup_table * const *gpiod_lookup_tables;
- const struct x86_i2c_client_info *i2c_client_info;
- const struct platform_device_info *pdev_info;
- const struct x86_serdev_info *serdev_info;
- int i2c_client_count;
- int pdev_count;
- int serdev_count;
- int (*init)(void);
- void (*exit)(void);
-};
-
-/* Generic / shared charger / battery settings */
-static const char * const tusb1211_chg_det_psy[] = { "tusb1211-charger-detect" };
-static const char * const bq24190_psy[] = { "bq24190-charger" };
-static const char * const bq25890_psy[] = { "bq25890-charger-0" };
-
-static const struct property_entry fg_bq24190_supply_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
- { }
-};
-
-static const struct software_node fg_bq24190_supply_node = {
- .properties = fg_bq24190_supply_props,
-};
-
-static const struct property_entry fg_bq25890_supply_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_psy),
- { }
-};
-
-static const struct software_node fg_bq25890_supply_node = {
- .properties = fg_bq25890_supply_props,
-};
-
-/* LiPo HighVoltage (max 4.35V) settings used by most devs with a HV bat. */
-static const struct property_entry generic_lipo_hv_4v35_battery_props[] = {
- PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
- PROPERTY_ENTRY_STRING("device-chemistry", "lithium-ion"),
- PROPERTY_ENTRY_U32("precharge-current-microamp", 256000),
- PROPERTY_ENTRY_U32("charge-term-current-microamp", 128000),
- PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 1856000),
- PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4352000),
- PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
- { }
-};
-
-static const struct software_node generic_lipo_hv_4v35_battery_node = {
- .properties = generic_lipo_hv_4v35_battery_props,
-};
-
-/* For enabling the bq24190 5V boost based on id-pin */
-static struct regulator_consumer_supply intel_int3496_consumer = {
- .supply = "vbus",
- .dev_name = "intel-int3496",
-};
-
-static const struct regulator_init_data bq24190_vbus_init_data = {
- .constraints = {
- .name = "bq24190_vbus",
- .valid_ops_mask = REGULATOR_CHANGE_STATUS,
- },
- .consumer_supplies = &intel_int3496_consumer,
- .num_consumer_supplies = 1,
-};
-
-static struct bq24190_platform_data bq24190_pdata = {
- .regulator_init_data = &bq24190_vbus_init_data,
-};
-
-static const char * const bq24190_modules[] __initconst = {
- "intel_crystal_cove_charger", /* For the bq24190 IRQ */
- "bq24190_charger", /* For the Vbus regulator for intel-int3496 */
- NULL
-};
-
-/* Generic pdevs array and gpio-lookups for micro USB ID pin handling */
-static const struct platform_device_info int3496_pdevs[] __initconst = {
- {
- /* For micro USB ID pin handling */
- .name = "intel-int3496",
- .id = PLATFORM_DEVID_NONE,
- },
-};
-
-static struct gpiod_lookup_table int3496_gpo2_pin22_gpios = {
- .dev_id = "intel-int3496",
- .table = {
- GPIO_LOOKUP("INT33FC:02", 22, "id", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-static struct gpiod_lookup_table int3496_reference_gpios = {
- .dev_id = "intel-int3496",
- .table = {
- GPIO_LOOKUP("INT33FC:01", 15, "vbus", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 18, "id", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-/* Acer Iconia One 7 B1-750 has an Android factory img with everything hardcoded */
-static const char * const acer_b1_750_mount_matrix[] = {
- "-1", "0", "0",
- "0", "1", "0",
- "0", "0", "1"
-};
-
-static const struct property_entry acer_b1_750_bma250e_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", acer_b1_750_mount_matrix),
- { }
-};
-
-static const struct software_node acer_b1_750_bma250e_node = {
- .properties = acer_b1_750_bma250e_props,
-};
-
-static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = {
- {
- /* Novatek NVT-ts touchscreen */
- .board_info = {
- .type = "NVT-ts",
- .addr = 0x34,
- .dev_name = "NVT-ts",
- },
- .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,
- },
- }, {
- /* BMA250E accelerometer */
- .board_info = {
- .type = "bma250e",
- .addr = 0x18,
- .swnode = &acer_b1_750_bma250e_node,
- },
- .adapter_path = "\\_SB_.I2C3",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_GPIOINT,
- .chip = "INT33FC:02",
- .index = 25,
- .trigger = ACPI_LEVEL_SENSITIVE,
- .polarity = ACPI_ACTIVE_HIGH,
- },
- },
-};
-
-static struct gpiod_lookup_table acer_b1_750_goodix_gpios = {
- .dev_id = "i2c-NVT-ts",
- .table = {
- GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_LOW),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const acer_b1_750_gpios[] = {
- &acer_b1_750_goodix_gpios,
- &int3496_reference_gpios,
- NULL
-};
-
-static const struct x86_dev_info acer_b1_750_info __initconst = {
- .i2c_client_info = acer_b1_750_i2c_clients,
- .i2c_client_count = ARRAY_SIZE(acer_b1_750_i2c_clients),
- .pdev_info = int3496_pdevs,
- .pdev_count = ARRAY_SIZE(int3496_pdevs),
- .gpiod_lookup_tables = acer_b1_750_gpios,
-};
-
-/*
- * 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-button device for this.
- */
-static struct gpio_keys_button advantech_mica_071_button = {
- .code = KEY_PROG1,
- /* .gpio gets filled in by advantech_mica_071_init() */
- .active_low = true,
- .desc = "prog1_key",
- .type = EV_KEY,
- .wakeup = false,
- .debounce_interval = 50,
-};
-
-static const struct gpio_keys_platform_data advantech_mica_071_button_pdata __initconst = {
- .buttons = &advantech_mica_071_button,
- .nbuttons = 1,
- .name = "prog1_key",
-};
-
-static const struct platform_device_info advantech_mica_071_pdevs[] __initconst = {
- {
- .name = "gpio-keys",
- .id = PLATFORM_DEVID_AUTO,
- .data = &advantech_mica_071_button_pdata,
- .size_data = sizeof(advantech_mica_071_button_pdata),
- },
-};
-
-static int __init advantech_mica_071_init(void)
-{
- struct gpio_desc *gpiod;
- int ret;
-
- ret = x86_android_tablet_get_gpiod("INT33FC:00", 2, &gpiod);
- if (ret < 0)
- return ret;
- advantech_mica_071_button.gpio = desc_to_gpio(gpiod);
-
- return 0;
-}
-
-static const struct x86_dev_info advantech_mica_071_info __initconst = {
- .pdev_info = advantech_mica_071_pdevs,
- .pdev_count = ARRAY_SIZE(advantech_mica_071_pdevs),
- .init = advantech_mica_071_init,
-};
-
-/* Asus ME176C and TF103C tablets shared data */
-static struct gpio_keys_button asus_me176c_tf103c_lid = {
- .code = SW_LID,
- /* .gpio gets filled in by asus_me176c_tf103c_init() */
- .active_low = true,
- .desc = "lid_sw",
- .type = EV_SW,
- .wakeup = true,
- .debounce_interval = 50,
-};
-
-static const struct gpio_keys_platform_data asus_me176c_tf103c_lid_pdata __initconst = {
- .buttons = &asus_me176c_tf103c_lid,
- .nbuttons = 1,
- .name = "lid_sw",
-};
-
-static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst = {
- {
- .name = "gpio-keys",
- .id = PLATFORM_DEVID_AUTO,
- .data = &asus_me176c_tf103c_lid_pdata,
- .size_data = sizeof(asus_me176c_tf103c_lid_pdata),
- },
- {
- /* For micro USB ID pin handling */
- .name = "intel-int3496",
- .id = PLATFORM_DEVID_NONE,
- },
-};
-
-static int __init asus_me176c_tf103c_init(void)
-{
- struct gpio_desc *gpiod;
- int ret;
-
- ret = x86_android_tablet_get_gpiod("INT33FC:02", 12, &gpiod);
- if (ret < 0)
- return ret;
- asus_me176c_tf103c_lid.gpio = desc_to_gpio(gpiod);
-
- return 0;
-}
-
-
-/* Asus ME176C tablets have an Android factory img with everything hardcoded */
-static const char * const asus_me176c_accel_mount_matrix[] = {
- "-1", "0", "0",
- "0", "1", "0",
- "0", "0", "1"
-};
-
-static const struct property_entry asus_me176c_accel_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", asus_me176c_accel_mount_matrix),
- { }
-};
-
-static const struct software_node asus_me176c_accel_node = {
- .properties = asus_me176c_accel_props,
-};
-
-static const struct property_entry asus_me176c_bq24190_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
- PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
- PROPERTY_ENTRY_U32("ti,system-minimum-microvolt", 3600000),
- PROPERTY_ENTRY_BOOL("omit-battery-class"),
- PROPERTY_ENTRY_BOOL("disable-reset"),
- { }
-};
-
-static const struct software_node asus_me176c_bq24190_node = {
- .properties = asus_me176c_bq24190_props,
-};
-
-static const struct property_entry asus_me176c_ug3105_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
- PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
- PROPERTY_ENTRY_U32("upisemi,rsns-microohm", 10000),
- { }
-};
-
-static const struct software_node asus_me176c_ug3105_node = {
- .properties = asus_me176c_ug3105_props,
-};
-
-static const struct x86_i2c_client_info asus_me176c_i2c_clients[] __initconst = {
- {
- /* bq24297 battery charger */
- .board_info = {
- .type = "bq24190",
- .addr = 0x6b,
- .dev_name = "bq24297",
- .swnode = &asus_me176c_bq24190_node,
- .platform_data = &bq24190_pdata,
- },
- .adapter_path = "\\_SB_.I2C1",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_PMIC,
- .chip = "\\_SB_.I2C7.PMIC",
- .domain = DOMAIN_BUS_WAKEUP,
- .index = 0,
- },
- }, {
- /* ug3105 battery monitor */
- .board_info = {
- .type = "ug3105",
- .addr = 0x70,
- .dev_name = "ug3105",
- .swnode = &asus_me176c_ug3105_node,
- },
- .adapter_path = "\\_SB_.I2C1",
- }, {
- /* ak09911 compass */
- .board_info = {
- .type = "ak09911",
- .addr = 0x0c,
- .dev_name = "ak09911",
- },
- .adapter_path = "\\_SB_.I2C5",
- }, {
- /* kxtj21009 accel */
- .board_info = {
- .type = "kxtj21009",
- .addr = 0x0f,
- .dev_name = "kxtj21009",
- .swnode = &asus_me176c_accel_node,
- },
- .adapter_path = "\\_SB_.I2C5",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_APIC,
- .index = 0x44,
- .trigger = ACPI_EDGE_SENSITIVE,
- .polarity = ACPI_ACTIVE_LOW,
- },
- }, {
- /* goodix touchscreen */
- .board_info = {
- .type = "GDIX1001:00",
- .addr = 0x14,
- .dev_name = "goodix_ts",
- },
- .adapter_path = "\\_SB_.I2C6",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_APIC,
- .index = 0x45,
- .trigger = ACPI_EDGE_SENSITIVE,
- .polarity = ACPI_ACTIVE_LOW,
- },
- },
-};
-
-static const struct x86_serdev_info asus_me176c_serdevs[] __initconst = {
- {
- .ctrl_hid = "80860F0A",
- .ctrl_uid = "2",
- .ctrl_devname = "serial0",
- .serdev_hid = "BCM2E3A",
- },
-};
-
-static struct gpiod_lookup_table asus_me176c_goodix_gpios = {
- .dev_id = "i2c-goodix_ts",
- .table = {
- GPIO_LOOKUP("INT33FC:00", 60, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 28, "irq", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const asus_me176c_gpios[] = {
- &int3496_gpo2_pin22_gpios,
- &asus_me176c_goodix_gpios,
- NULL
-};
-
-static const struct x86_dev_info asus_me176c_info __initconst = {
- .i2c_client_info = asus_me176c_i2c_clients,
- .i2c_client_count = ARRAY_SIZE(asus_me176c_i2c_clients),
- .pdev_info = asus_me176c_tf103c_pdevs,
- .pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
- .serdev_info = asus_me176c_serdevs,
- .serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
- .gpiod_lookup_tables = asus_me176c_gpios,
- .bat_swnode = &generic_lipo_hv_4v35_battery_node,
- .modules = bq24190_modules,
- .invalid_aei_gpiochip = "INT33FC:02",
- .init = asus_me176c_tf103c_init,
-};
-
-/* Asus TF103C tablets have an Android factory img with everything hardcoded */
-static const char * const asus_tf103c_accel_mount_matrix[] = {
- "0", "-1", "0",
- "-1", "0", "0",
- "0", "0", "1"
-};
-
-static const struct property_entry asus_tf103c_accel_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", asus_tf103c_accel_mount_matrix),
- { }
-};
-
-static const struct software_node asus_tf103c_accel_node = {
- .properties = asus_tf103c_accel_props,
-};
-
-static const struct property_entry asus_tf103c_touchscreen_props[] = {
- PROPERTY_ENTRY_STRING("compatible", "atmel,atmel_mxt_ts"),
- { }
-};
-
-static const struct software_node asus_tf103c_touchscreen_node = {
- .properties = asus_tf103c_touchscreen_props,
-};
-
-static const struct property_entry asus_tf103c_battery_props[] = {
- PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
- PROPERTY_ENTRY_STRING("device-chemistry", "lithium-ion-polymer"),
- PROPERTY_ENTRY_U32("precharge-current-microamp", 256000),
- PROPERTY_ENTRY_U32("charge-term-current-microamp", 128000),
- PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 2048000),
- PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4208000),
- PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
- { }
-};
-
-static const struct software_node asus_tf103c_battery_node = {
- .properties = asus_tf103c_battery_props,
-};
-
-static const struct property_entry asus_tf103c_bq24190_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
- PROPERTY_ENTRY_REF("monitored-battery", &asus_tf103c_battery_node),
- PROPERTY_ENTRY_U32("ti,system-minimum-microvolt", 3600000),
- PROPERTY_ENTRY_BOOL("omit-battery-class"),
- PROPERTY_ENTRY_BOOL("disable-reset"),
- { }
-};
-
-static const struct software_node asus_tf103c_bq24190_node = {
- .properties = asus_tf103c_bq24190_props,
-};
-
-static const struct property_entry asus_tf103c_ug3105_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
- PROPERTY_ENTRY_REF("monitored-battery", &asus_tf103c_battery_node),
- PROPERTY_ENTRY_U32("upisemi,rsns-microohm", 5000),
- { }
-};
-
-static const struct software_node asus_tf103c_ug3105_node = {
- .properties = asus_tf103c_ug3105_props,
-};
-
-static const struct x86_i2c_client_info asus_tf103c_i2c_clients[] __initconst = {
- {
- /* bq24297 battery charger */
- .board_info = {
- .type = "bq24190",
- .addr = 0x6b,
- .dev_name = "bq24297",
- .swnode = &asus_tf103c_bq24190_node,
- .platform_data = &bq24190_pdata,
- },
- .adapter_path = "\\_SB_.I2C1",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_PMIC,
- .chip = "\\_SB_.I2C7.PMIC",
- .domain = DOMAIN_BUS_WAKEUP,
- .index = 0,
- },
- }, {
- /* ug3105 battery monitor */
- .board_info = {
- .type = "ug3105",
- .addr = 0x70,
- .dev_name = "ug3105",
- .swnode = &asus_tf103c_ug3105_node,
- },
- .adapter_path = "\\_SB_.I2C1",
- }, {
- /* ak09911 compass */
- .board_info = {
- .type = "ak09911",
- .addr = 0x0c,
- .dev_name = "ak09911",
- },
- .adapter_path = "\\_SB_.I2C5",
- }, {
- /* kxtj21009 accel */
- .board_info = {
- .type = "kxtj21009",
- .addr = 0x0f,
- .dev_name = "kxtj21009",
- .swnode = &asus_tf103c_accel_node,
- },
- .adapter_path = "\\_SB_.I2C5",
- }, {
- /* atmel touchscreen */
- .board_info = {
- .type = "atmel_mxt_ts",
- .addr = 0x4a,
- .dev_name = "atmel_mxt_ts",
- .swnode = &asus_tf103c_touchscreen_node,
- },
- .adapter_path = "\\_SB_.I2C6",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_GPIOINT,
- .chip = "INT33FC:02",
- .index = 28,
- .trigger = ACPI_EDGE_SENSITIVE,
- .polarity = ACPI_ACTIVE_LOW,
- },
- },
-};
-
-static struct gpiod_lookup_table * const asus_tf103c_gpios[] = {
- &int3496_gpo2_pin22_gpios,
- NULL
-};
-
-static const struct x86_dev_info asus_tf103c_info __initconst = {
- .i2c_client_info = asus_tf103c_i2c_clients,
- .i2c_client_count = ARRAY_SIZE(asus_tf103c_i2c_clients),
- .pdev_info = asus_me176c_tf103c_pdevs,
- .pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
- .gpiod_lookup_tables = asus_tf103c_gpios,
- .bat_swnode = &asus_tf103c_battery_node,
- .modules = bq24190_modules,
- .invalid_aei_gpiochip = "INT33FC:02",
- .init = asus_me176c_tf103c_init,
-};
-
-/*
- * 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,
- },
- },
-};
-
-static int __init chuwi_hi8_init(void)
-{
- /*
- * 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;
-}
-
-static 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,
-};
-
-#define CZC_EC_EXTRA_PORT 0x68
-#define CZC_EC_ANDROID_KEYS 0x63
-
-static int __init czc_p10t_init(void)
-{
- /*
- * 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;
-}
-
-static const struct x86_dev_info czc_p10t __initconst = {
- .init = czc_p10t_init,
-};
-
-/* Lenovo Yoga Book X90F / X91F / X91L need manual instantiation of the fg client */
-static const struct x86_i2c_client_info lenovo_yogabook_x9x_i2c_clients[] __initconst = {
- {
- /* BQ27542 fuel-gauge */
- .board_info = {
- .type = "bq27542",
- .addr = 0x55,
- .dev_name = "bq27542",
- .swnode = &fg_bq25890_supply_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C1",
- },
-};
-
-static const struct x86_dev_info lenovo_yogabook_x9x_info __initconst = {
- .i2c_client_info = lenovo_yogabook_x9x_i2c_clients,
- .i2c_client_count = ARRAY_SIZE(lenovo_yogabook_x9x_i2c_clients),
-};
-
-/* Lenovo Yoga Tablet 2 1050F/L's Android factory img has everything hardcoded */
-static const struct property_entry lenovo_yoga_tab2_830_1050_bq24190_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
- PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
- PROPERTY_ENTRY_BOOL("omit-battery-class"),
- PROPERTY_ENTRY_BOOL("disable-reset"),
- { }
-};
-
-static const struct software_node lenovo_yoga_tab2_830_1050_bq24190_node = {
- .properties = lenovo_yoga_tab2_830_1050_bq24190_props,
-};
-
-/* This gets filled by lenovo_yoga_tab2_830_1050_init() */
-static struct rmi_device_platform_data lenovo_yoga_tab2_830_1050_rmi_pdata = { };
-
-static struct lp855x_platform_data lenovo_yoga_tab2_830_1050_lp8557_pdata = {
- .device_control = 0x86,
- .initial_brightness = 128,
-};
-
-static const struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __initconst = {
- {
- /* bq24292i battery charger */
- .board_info = {
- .type = "bq24190",
- .addr = 0x6b,
- .dev_name = "bq24292i",
- .swnode = &lenovo_yoga_tab2_830_1050_bq24190_node,
- .platform_data = &bq24190_pdata,
- },
- .adapter_path = "\\_SB_.I2C1",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_GPIOINT,
- .chip = "INT33FC:02",
- .index = 2,
- .trigger = ACPI_EDGE_SENSITIVE,
- .polarity = ACPI_ACTIVE_HIGH,
- },
- }, {
- /* BQ27541 fuel-gauge */
- .board_info = {
- .type = "bq27541",
- .addr = 0x55,
- .dev_name = "bq27541",
- .swnode = &fg_bq24190_supply_node,
- },
- .adapter_path = "\\_SB_.I2C1",
- }, {
- /* Synaptics RMI touchscreen */
- .board_info = {
- .type = "rmi4_i2c",
- .addr = 0x38,
- .dev_name = "rmi4_i2c",
- .platform_data = &lenovo_yoga_tab2_830_1050_rmi_pdata,
- },
- .adapter_path = "\\_SB_.I2C6",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_APIC,
- .index = 0x45,
- .trigger = ACPI_EDGE_SENSITIVE,
- .polarity = ACPI_ACTIVE_HIGH,
- },
- }, {
- /* LP8557 Backlight controller */
- .board_info = {
- .type = "lp8557",
- .addr = 0x2c,
- .dev_name = "lp8557",
- .platform_data = &lenovo_yoga_tab2_830_1050_lp8557_pdata,
- },
- .adapter_path = "\\_SB_.I2C3",
- },
-};
-
-static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_int3496_gpios = {
- .dev_id = "intel-int3496",
- .table = {
- GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_LOW),
- GPIO_LOOKUP("INT33FC:02", 24, "id", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-#define LENOVO_YOGA_TAB2_830_1050_CODEC_NAME "spi-10WM5102:00"
-
-static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
- .dev_id = LENOVO_YOGA_TAB2_830_1050_CODEC_NAME,
- .table = {
- GPIO_LOOKUP("gpio_crystalcove", 3, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:01", 23, "wlf,ldoena", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("arizona", 2, "wlf,spkvdd-ena", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("arizona", 4, "wlf,micd-pol", GPIO_ACTIVE_LOW),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
- &lenovo_yoga_tab2_830_1050_int3496_gpios,
- &lenovo_yoga_tab2_830_1050_codec_gpios,
- NULL
-};
-
-static int __init lenovo_yoga_tab2_830_1050_init(void);
-static void lenovo_yoga_tab2_830_1050_exit(void);
-
-static struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = {
- .i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
- /* i2c_client_count gets set by lenovo_yoga_tab2_830_1050_init() */
- .pdev_info = int3496_pdevs,
- .pdev_count = ARRAY_SIZE(int3496_pdevs),
- .gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
- .bat_swnode = &generic_lipo_hv_4v35_battery_node,
- .modules = bq24190_modules,
- .invalid_aei_gpiochip = "INT33FC:02",
- .init = lenovo_yoga_tab2_830_1050_init,
- .exit = lenovo_yoga_tab2_830_1050_exit,
-};
-
-/*
- * The Lenovo Yoga Tablet 2 830 and 1050 (8" vs 10") versions use the same
- * mainboard, but they need some different treatment related to the display:
- * 1. The 830 uses a portrait LCD panel with a landscape touchscreen, requiring
- * the touchscreen driver to adjust the touch-coords to match the LCD.
- * 2. Both use an TI LP8557 LED backlight controller. On the 1050 the LP8557's
- * PWM input is connected to the PMIC's PWM output and everything works fine
- * with the defaults programmed into the LP8557 by the BIOS.
- * But on the 830 the LP8557's PWM input is connected to a PWM output coming
- * from the LCD panel's controller. The Android code has a hack in the i915
- * driver to write the non-standard DSI reg 0x9f with the desired backlight
- * level to set the duty-cycle of the LCD's PWM output.
- *
- * To avoid having to have a similar hack in the mainline kernel the LP8557
- * entry in lenovo_yoga_tab2_830_1050_i2c_clients instead just programs the
- * LP8557 to directly set the level, ignoring the PWM input. This means that
- * the LP8557 i2c_client should only be instantiated on the 830.
- */
-static int __init lenovo_yoga_tab2_830_1050_init_display(void)
-{
- struct gpio_desc *gpiod;
- int ret;
-
- /* Use PMIC GPIO 10 bootstrap pin to differentiate 830 vs 1050 */
- ret = x86_android_tablet_get_gpiod("gpio_crystalcove", 10, &gpiod);
- if (ret)
- return ret;
-
- ret = gpiod_get_value_cansleep(gpiod);
- if (ret) {
- pr_info("detected Lenovo Yoga Tablet 2 1050F/L\n");
- lenovo_yoga_tab2_830_1050_info.i2c_client_count =
- ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients) - 1;
- } else {
- pr_info("detected Lenovo Yoga Tablet 2 830F/L\n");
- lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.swap_axes = true;
- lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.flip_y = true;
- lenovo_yoga_tab2_830_1050_info.i2c_client_count =
- ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients);
- }
-
- return 0;
-}
-
-/* SUS (INT33FC:02) pin 6 needs to be configured as pmu_clk for the audio codec */
-static const struct pinctrl_map lenovo_yoga_tab2_830_1050_codec_pinctrl_map =
- PIN_MAP_MUX_GROUP(LENOVO_YOGA_TAB2_830_1050_CODEC_NAME, "codec_32khz_clk",
- "INT33FC:02", "pmu_clk2_grp", "pmu_clk");
-
-static struct pinctrl *lenovo_yoga_tab2_830_1050_codec_pinctrl;
-static struct sys_off_handler *lenovo_yoga_tab2_830_1050_sys_off_handler;
-
-static int __init lenovo_yoga_tab2_830_1050_init_codec(void)
-{
- struct device *codec_dev;
- struct pinctrl *pinctrl;
- int ret;
-
- codec_dev = bus_find_device_by_name(&spi_bus_type, NULL,
- LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
- if (!codec_dev) {
- pr_err("error cannot find %s device\n", LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
- return -ENODEV;
- }
-
- ret = pinctrl_register_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map, 1);
- if (ret)
- goto err_put_device;
-
- pinctrl = pinctrl_get_select(codec_dev, "codec_32khz_clk");
- if (IS_ERR(pinctrl)) {
- ret = dev_err_probe(codec_dev, PTR_ERR(pinctrl), "selecting codec_32khz_clk\n");
- goto err_unregister_mappings;
- }
-
- /* We're done with the codec_dev now */
- put_device(codec_dev);
-
- lenovo_yoga_tab2_830_1050_codec_pinctrl = pinctrl;
- return 0;
-
-err_unregister_mappings:
- pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
-err_put_device:
- put_device(codec_dev);
- return ret;
-}
-
-/*
- * These tablet's DSDT does not set acpi_gbl_reduced_hardware, so acpi_power_off
- * gets used as pm_power_off handler. This causes "poweroff" on these tablets
- * to hang hard. Requiring pressing the powerbutton for 30 seconds *twice*
- * followed by a normal 3 second press to recover. Avoid this by doing an EFI
- * poweroff instead.
- */
-static int lenovo_yoga_tab2_830_1050_power_off(struct sys_off_data *data)
-{
- efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
-
- return NOTIFY_DONE;
-}
-
-static int __init lenovo_yoga_tab2_830_1050_init(void)
-{
- int ret;
-
- ret = lenovo_yoga_tab2_830_1050_init_display();
- if (ret)
- return ret;
-
- ret = lenovo_yoga_tab2_830_1050_init_codec();
- if (ret)
- return ret;
-
- /* SYS_OFF_PRIO_FIRMWARE + 1 so that it runs before acpi_power_off */
- lenovo_yoga_tab2_830_1050_sys_off_handler =
- register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_FIRMWARE + 1,
- lenovo_yoga_tab2_830_1050_power_off, NULL);
- if (IS_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler))
- return PTR_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler);
-
- return 0;
-}
-
-static void lenovo_yoga_tab2_830_1050_exit(void)
-{
- unregister_sys_off_handler(lenovo_yoga_tab2_830_1050_sys_off_handler);
-
- if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
- pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
- pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
- }
-}
-
-/* Lenovo Yoga Tab 3 Pro YT3-X90F */
-
-/*
- * There are 2 batteries, with 2 bq27500 fuel-gauges and 2 bq25892 chargers,
- * "bq25890-charger-1" is instantiated from: drivers/i2c/busses/i2c-cht-wc.c.
- */
-static const char * const lenovo_yt3_bq25892_0_suppliers[] = { "cht_wcove_pwrsrc" };
-static const char * const bq25890_1_psy[] = { "bq25890-charger-1" };
-
-static const struct property_entry fg_bq25890_1_supply_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_1_psy),
- { }
-};
-
-static const struct software_node fg_bq25890_1_supply_node = {
- .properties = fg_bq25890_1_supply_props,
-};
-
-/* bq25892 charger settings for the flat lipo battery behind the screen */
-static const struct property_entry lenovo_yt3_bq25892_0_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_0_suppliers),
- PROPERTY_ENTRY_STRING("linux,power-supply-name", "bq25892-second-chrg"),
- PROPERTY_ENTRY_U32("linux,iinlim-percentage", 40),
- PROPERTY_ENTRY_BOOL("linux,skip-reset"),
- /* Values taken from Android Factory Image */
- PROPERTY_ENTRY_U32("ti,charge-current", 2048000),
- PROPERTY_ENTRY_U32("ti,battery-regulation-voltage", 4352000),
- PROPERTY_ENTRY_U32("ti,termination-current", 128000),
- PROPERTY_ENTRY_U32("ti,precharge-current", 128000),
- PROPERTY_ENTRY_U32("ti,minimum-sys-voltage", 3700000),
- PROPERTY_ENTRY_U32("ti,boost-voltage", 4998000),
- PROPERTY_ENTRY_U32("ti,boost-max-current", 500000),
- PROPERTY_ENTRY_BOOL("ti,use-ilim-pin"),
- { }
-};
-
-static const struct software_node lenovo_yt3_bq25892_0_node = {
- .properties = lenovo_yt3_bq25892_0_props,
-};
-
-static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = {
- {
- /* bq27500 fuel-gauge for the flat lipo battery behind the screen */
- .board_info = {
- .type = "bq27500",
- .addr = 0x55,
- .dev_name = "bq27500_0",
- .swnode = &fg_bq25890_supply_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C1",
- }, {
- /* bq25892 charger for the flat lipo battery behind the screen */
- .board_info = {
- .type = "bq25892",
- .addr = 0x6b,
- .dev_name = "bq25892_0",
- .swnode = &lenovo_yt3_bq25892_0_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C1",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_GPIOINT,
- .chip = "INT33FF:01",
- .index = 5,
- .trigger = ACPI_EDGE_SENSITIVE,
- .polarity = ACPI_ACTIVE_LOW,
- },
- }, {
- /* bq27500 fuel-gauge for the round li-ion cells in the hinge */
- .board_info = {
- .type = "bq27500",
- .addr = 0x55,
- .dev_name = "bq27500_1",
- .swnode = &fg_bq25890_1_supply_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C2",
- }
-};
-
-static int __init lenovo_yt3_init(void)
-{
- struct gpio_desc *gpiod;
- int ret;
-
- /*
- * The "bq25892_0" charger IC has its /CE (Charge-Enable) and OTG pins
- * connected to GPIOs, rather then having them hardwired to the correct
- * values as is normally done.
- *
- * The bq25890_charger driver controls these through I2C, but this only
- * works if not overridden by the pins. Set these pins here:
- * 1. Set /CE to 0 to allow charging.
- * 2. Set OTG to 0 disable V5 boost output since the 5V boost output of
- * the main "bq25892_1" charger is used when necessary.
- */
-
- /* /CE pin */
- ret = x86_android_tablet_get_gpiod("INT33FF:02", 22, &gpiod);
- if (ret < 0)
- return ret;
-
- /*
- * The gpio_desc returned by x86_android_tablet_get_gpiod() is a "raw"
- * gpio_desc, that is there is no way to pass lookup-flags like
- * GPIO_ACTIVE_LOW. Set the GPIO to 0 here to enable charging since
- * the /CE pin is active-low, but not marked as such in the gpio_desc.
- */
- gpiod_set_value(gpiod, 0);
-
- /* OTG pin */
- ret = x86_android_tablet_get_gpiod("INT33FF:03", 19, &gpiod);
- if (ret < 0)
- return ret;
-
- gpiod_set_value(gpiod, 0);
-
- return 0;
-}
-
-static const struct x86_dev_info lenovo_yt3_info __initconst = {
- .i2c_client_info = lenovo_yt3_i2c_clients,
- .i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
- .init = lenovo_yt3_init,
-};
-
-/* Medion Lifetab S10346 tablets have an Android factory img 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"),
- { }
-};
-
-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 accel */
- .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,
- },
- }, {
- /* 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,
- },
- },
-};
-
-static struct gpiod_lookup_table medion_lifetab_s10346_goodix_gpios = {
- .dev_id = "i2c-goodix_ts",
- .table = {
- GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const medion_lifetab_s10346_gpios[] = {
- &medion_lifetab_s10346_goodix_gpios,
- NULL
-};
-
-static 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),
- .gpiod_lookup_tables = medion_lifetab_s10346_gpios,
-};
-
-/* Nextbook Ares 8 tablets have an Android factory img 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 accel */
- .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,
- },
- },
-};
-
-static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = {
- &int3496_reference_gpios,
- NULL
-};
-
-static 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 = ARRAY_SIZE(int3496_pdevs),
- .gpiod_lookup_tables = nextbook_ares8_gpios,
- .invalid_aei_gpiochip = "INT33FC:02",
-};
-
-/*
- * 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 fwnode 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),
- { }
-};
-
-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 accel */
- .board_info = {
- .type = "kxcj91008",
- .addr = 0x0f,
- .dev_name = "kxcj91008",
- .swnode = &whitelabel_tm800a550l_accel_node,
- },
- .adapter_path = "\\_SB_.I2C3",
- },
-};
-
-static struct gpiod_lookup_table whitelabel_tm800a550l_goodix_gpios = {
- .dev_id = "i2c-goodix_ts",
- .table = {
- GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const whitelabel_tm800a550l_gpios[] = {
- &whitelabel_tm800a550l_goodix_gpios,
- NULL
-};
-
-static 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),
- .gpiod_lookup_tables = whitelabel_tm800a550l_gpios,
-};
-
-/*
- * 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",
- },
- .adapter_path = "\\_SB_.PCI0.I2C3",
- },
-};
-
-static 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),
-};
-
-static const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
- {
- /* Acer Iconia One 7 B1-750 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
- DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"),
- },
- .driver_data = (void *)&acer_b1_750_info,
- },
- {
- /* Advantech MICA-071 */
- .matches = {
- DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Advantech"),
- DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MICA-071"),
- },
- .driver_data = (void *)&advantech_mica_071_info,
- },
- {
- /* Asus MeMO Pad 7 ME176C */
- .matches = {
- DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
- },
- .driver_data = (void *)&asus_me176c_info,
- },
- {
- /* Asus TF103C */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
- },
- .driver_data = (void *)&asus_tf103c_info,
- },
- {
- /* Chuwi Hi8 (CWI509) */
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
- DMI_MATCH(DMI_BOARD_NAME, "BYT-PA03C"),
- DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
- DMI_MATCH(DMI_PRODUCT_NAME, "S806"),
- },
- .driver_data = (void *)&chuwi_hi8_info,
- },
- {
- /* CZC P10T */
- .ident = "CZC ODEON TPC-10 (\"P10T\")",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "CZC"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ODEON*TPC-10"),
- },
- .driver_data = (void *)&czc_p10t,
- },
- {
- /* CZC P10T variant */
- .ident = "ViewSonic ViewPad 10",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ViewSonic"),
- DMI_MATCH(DMI_PRODUCT_NAME, "VPAD10"),
- },
- .driver_data = (void *)&czc_p10t,
- },
- {
- /* Lenovo Yoga Book X90F / X91F / X91L */
- .matches = {
- /* Non exact match to match all versions */
- DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
- },
- .driver_data = (void *)&lenovo_yogabook_x9x_info,
- },
- {
- /*
- * Lenovo Yoga Tablet 2 830F/L or 1050F/L (The 8" and 10"
- * Lenovo Yoga Tablet 2 use the same mainboard)
- */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
- DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
- DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
- /* Partial match on beginning of BIOS version */
- DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
- },
- .driver_data = (void *)&lenovo_yoga_tab2_830_1050_info,
- },
- {
- /* Lenovo Yoga Tab 3 Pro YT3-X90F */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
- DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
- },
- .driver_data = (void *)&lenovo_yt3_info,
- },
- {
- /* Medion Lifetab S10346 */
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
- DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
- /* Above strings are much too generic, also match on BIOS date */
- DMI_MATCH(DMI_BIOS_DATE, "10/22/2015"),
- },
- .driver_data = (void *)&medion_lifetab_s10346_info,
- },
- {
- /* Nextbook Ares 8 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
- DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
- },
- .driver_data = (void *)&nextbook_ares8_info,
- },
- {
- /* Whitelabel (sold as various brands) TM800A550L */
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
- DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
- /* Above strings are too generic, also match on BIOS version */
- DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
- },
- .driver_data = (void *)&whitelabel_tm800a550l_info,
- },
- {
- /* Xiaomi Mi Pad 2 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
- },
- .driver_data = (void *)&xiaomi_mipad2_info,
- },
- { }
-};
-MODULE_DEVICE_TABLE(dmi, x86_android_tablet_ids);
-
-static int i2c_client_count;
-static int pdev_count;
-static int serdev_count;
-static struct i2c_client **i2c_clients;
-static struct platform_device **pdevs;
-static struct serdev_device **serdevs;
-static struct gpiod_lookup_table * const *gpiod_lookup_tables;
-static const struct software_node *bat_swnode;
-static void (*exit_handler)(void);
-
-static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info,
- int idx)
-{
- const struct x86_i2c_client_info *client_info = &dev_info->i2c_client_info[idx];
- struct i2c_board_info board_info = client_info->board_info;
- struct i2c_adapter *adap;
- acpi_handle handle;
- acpi_status status;
-
- board_info.irq = x86_acpi_irq_helper_get(&client_info->irq_data);
- if (board_info.irq < 0)
- return board_info.irq;
-
- status = acpi_get_handle(NULL, client_info->adapter_path, &handle);
- if (ACPI_FAILURE(status)) {
- pr_err("Error could not get %s handle\n", client_info->adapter_path);
- return -ENODEV;
- }
-
- adap = i2c_acpi_find_adapter_by_handle(handle);
- if (!adap) {
- pr_err("error could not get %s adapter\n", client_info->adapter_path);
- return -ENODEV;
- }
-
- i2c_clients[idx] = i2c_new_client_device(adap, &board_info);
- put_device(&adap->dev);
- if (IS_ERR(i2c_clients[idx]))
- return dev_err_probe(&adap->dev, PTR_ERR(i2c_clients[idx]),
- "creating I2C-client %d\n", idx);
-
- return 0;
-}
-
-static __init int x86_instantiate_serdev(const struct x86_serdev_info *info, int idx)
-{
- struct acpi_device *ctrl_adev, *serdev_adev;
- struct serdev_device *serdev;
- struct device *ctrl_dev;
- int ret = -ENODEV;
-
- ctrl_adev = acpi_dev_get_first_match_dev(info->ctrl_hid, info->ctrl_uid, -1);
- if (!ctrl_adev) {
- pr_err("error could not get %s/%s ctrl adev\n",
- info->ctrl_hid, info->ctrl_uid);
- return -ENODEV;
- }
-
- serdev_adev = acpi_dev_get_first_match_dev(info->serdev_hid, NULL, -1);
- if (!serdev_adev) {
- pr_err("error could not get %s serdev adev\n", info->serdev_hid);
- goto put_ctrl_adev;
- }
-
- /* get_first_physical_node() returns a weak ref, no need to put() it */
- ctrl_dev = acpi_get_first_physical_node(ctrl_adev);
- if (!ctrl_dev) {
- pr_err("error could not get %s/%s ctrl physical dev\n",
- info->ctrl_hid, info->ctrl_uid);
- goto put_serdev_adev;
- }
-
- /* ctrl_dev now points to the controller's parent, get the controller */
- ctrl_dev = device_find_child_by_name(ctrl_dev, info->ctrl_devname);
- if (!ctrl_dev) {
- pr_err("error could not get %s/%s %s ctrl dev\n",
- info->ctrl_hid, info->ctrl_uid, info->ctrl_devname);
- goto put_serdev_adev;
- }
-
- serdev = serdev_device_alloc(to_serdev_controller(ctrl_dev));
- if (!serdev) {
- ret = -ENOMEM;
- goto put_serdev_adev;
- }
-
- ACPI_COMPANION_SET(&serdev->dev, serdev_adev);
- acpi_device_set_enumerated(serdev_adev);
-
- ret = serdev_device_add(serdev);
- if (ret) {
- dev_err(&serdev->dev, "error %d adding serdev\n", ret);
- serdev_device_put(serdev);
- goto put_serdev_adev;
- }
-
- serdevs[idx] = serdev;
-
-put_serdev_adev:
- acpi_dev_put(serdev_adev);
-put_ctrl_adev:
- acpi_dev_put(ctrl_adev);
- return ret;
-}
-
-static void x86_android_tablet_cleanup(void)
-{
- int i;
-
- for (i = 0; i < serdev_count; i++) {
- if (serdevs[i])
- serdev_device_remove(serdevs[i]);
- }
-
- kfree(serdevs);
-
- for (i = 0; i < pdev_count; i++)
- platform_device_unregister(pdevs[i]);
-
- kfree(pdevs);
-
- for (i = 0; i < i2c_client_count; i++)
- i2c_unregister_device(i2c_clients[i]);
-
- kfree(i2c_clients);
-
- if (exit_handler)
- exit_handler();
-
- for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
- gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
-
- software_node_unregister(bat_swnode);
-}
-
-static __init int x86_android_tablet_init(void)
-{
- const struct x86_dev_info *dev_info;
- const struct dmi_system_id *id;
- struct gpio_chip *chip;
- int i, ret = 0;
-
- id = dmi_first_match(x86_android_tablet_ids);
- if (!id)
- return -ENODEV;
-
- dev_info = id->driver_data;
-
- /*
- * The broken DSDTs on these devices often also include broken
- * _AEI (ACPI Event Interrupt) handlers, disable these.
- */
- if (dev_info->invalid_aei_gpiochip) {
- chip = gpiochip_find(dev_info->invalid_aei_gpiochip,
- gpiochip_find_match_label);
- if (!chip) {
- pr_err("error cannot find GPIO chip %s\n", dev_info->invalid_aei_gpiochip);
- return -ENODEV;
- }
- acpi_gpiochip_free_interrupts(chip);
- }
-
- /*
- * Since this runs from module_init() it cannot use -EPROBE_DEFER,
- * instead pre-load any modules which are listed as requirements.
- */
- for (i = 0; dev_info->modules && dev_info->modules[i]; i++)
- request_module(dev_info->modules[i]);
-
- bat_swnode = dev_info->bat_swnode;
- if (bat_swnode) {
- ret = software_node_register(bat_swnode);
- if (ret)
- return ret;
- }
-
- gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
- for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
- gpiod_add_lookup_table(gpiod_lookup_tables[i]);
-
- if (dev_info->init) {
- ret = dev_info->init();
- if (ret < 0) {
- x86_android_tablet_cleanup();
- return ret;
- }
- exit_handler = dev_info->exit;
- }
-
- i2c_clients = kcalloc(dev_info->i2c_client_count, sizeof(*i2c_clients), GFP_KERNEL);
- if (!i2c_clients) {
- x86_android_tablet_cleanup();
- return -ENOMEM;
- }
-
- i2c_client_count = dev_info->i2c_client_count;
- for (i = 0; i < i2c_client_count; i++) {
- ret = x86_instantiate_i2c_client(dev_info, i);
- if (ret < 0) {
- x86_android_tablet_cleanup();
- return ret;
- }
- }
-
- pdevs = kcalloc(dev_info->pdev_count, sizeof(*pdevs), GFP_KERNEL);
- if (!pdevs) {
- x86_android_tablet_cleanup();
- return -ENOMEM;
- }
-
- pdev_count = dev_info->pdev_count;
- for (i = 0; i < pdev_count; i++) {
- pdevs[i] = platform_device_register_full(&dev_info->pdev_info[i]);
- if (IS_ERR(pdevs[i])) {
- x86_android_tablet_cleanup();
- return PTR_ERR(pdevs[i]);
- }
- }
-
- serdevs = kcalloc(dev_info->serdev_count, sizeof(*serdevs), GFP_KERNEL);
- if (!serdevs) {
- x86_android_tablet_cleanup();
- return -ENOMEM;
- }
-
- serdev_count = dev_info->serdev_count;
- for (i = 0; i < serdev_count; i++) {
- ret = x86_instantiate_serdev(&dev_info->serdev_info[i], i);
- if (ret < 0) {
- x86_android_tablet_cleanup();
- return ret;
- }
- }
-
- return 0;
-}
-
-module_init(x86_android_tablet_init);
-module_exit(x86_android_tablet_cleanup);
-
-MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
-MODULE_DESCRIPTION("X86 Android tablets DSDT fixups driver");
-MODULE_LICENSE("GPL");
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# X86 Android tablet support Kconfig
+#
+
+config X86_ANDROID_TABLETS
+ tristate "X86 Android tablet support"
+ depends on I2C && SPI && SERIAL_DEV_BUS && ACPI && EFI && GPIOLIB
+ help
+ X86 tablets which ship with Android as (part of) the factory image
+ typically have various problems with their DSDTs. The factory kernels
+ shipped on these devices typically have device addresses and GPIOs
+ hardcoded in the kernel, rather than specified in their DSDT.
+
+ With the DSDT containing a random collection of devices which may or
+ may not actually be present. This driver contains various fixes for
+ such tablets, including instantiating kernel devices for devices which
+ are missing from the DSDT.
+
+ If you have a x86 Android tablet say Y or M here, for a generic x86
+ distro config say M here.
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# X86 Android tablet support Makefile
+#
+
+obj-$(CONFIG_X86_ANDROID_TABLETS) += x86-android-tablets.o
+
+x86-android-tablets-y := x86-android-tablets-main.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 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) 2021-2022 Hans de Goede <hdegoede@redhat.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/efi.h>
+#include <linux/gpio_keys.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
+#include <linux/gpio/machine.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/platform_data/lp855x.h>
+#include <linux/platform_device.h>
+#include <linux/power/bq24190_charger.h>
+#include <linux/reboot.h>
+#include <linux/rmi.h>
+#include <linux/serdev.h>
+#include <linux/spi/spi.h>
+#include <linux/string.h>
+/* For gpio_get_desc() which is EXPORT_SYMBOL_GPL() */
+#include "../../../gpio/gpiolib.h"
+#include "../../../gpio/gpiolib-acpi.h"
+
+/*
+ * Helper code to get Linux IRQ numbers given a description of the IRQ source
+ * (either IOAPIC index, or GPIO chip name + pin-number).
+ */
+enum x86_acpi_irq_type {
+ X86_ACPI_IRQ_TYPE_NONE,
+ X86_ACPI_IRQ_TYPE_APIC,
+ X86_ACPI_IRQ_TYPE_GPIOINT,
+ X86_ACPI_IRQ_TYPE_PMIC,
+};
+
+struct x86_acpi_irq_data {
+ char *chip; /* GPIO chip label (GPIOINT) or PMIC ACPI path (PMIC) */
+ enum x86_acpi_irq_type type;
+ enum irq_domain_bus_token domain;
+ int index;
+ int trigger; /* ACPI_EDGE_SENSITIVE / ACPI_LEVEL_SENSITIVE */
+ int polarity; /* ACPI_ACTIVE_HIGH / ACPI_ACTIVE_LOW / ACPI_ACTIVE_BOTH */
+};
+
+static int gpiochip_find_match_label(struct gpio_chip *gc, void *data)
+{
+ return gc->label && !strcmp(gc->label, data);
+}
+
+static int x86_android_tablet_get_gpiod(char *label, int pin, struct gpio_desc **desc)
+{
+ struct gpio_desc *gpiod;
+ struct gpio_chip *chip;
+
+ chip = gpiochip_find(label, gpiochip_find_match_label);
+ if (!chip) {
+ pr_err("error cannot find GPIO chip %s\n", label);
+ return -ENODEV;
+ }
+
+ gpiod = gpiochip_get_desc(chip, pin);
+ if (IS_ERR(gpiod)) {
+ pr_err("error %ld getting GPIO %s %d\n", PTR_ERR(gpiod), label, pin);
+ return PTR_ERR(gpiod);
+ }
+
+ *desc = gpiod;
+ return 0;
+}
+
+static int x86_acpi_irq_helper_get(const struct x86_acpi_irq_data *data)
+{
+ struct irq_fwspec fwspec = { };
+ struct irq_domain *domain;
+ struct acpi_device *adev;
+ struct gpio_desc *gpiod;
+ unsigned int irq_type;
+ acpi_handle handle;
+ acpi_status status;
+ int irq, ret;
+
+ switch (data->type) {
+ case X86_ACPI_IRQ_TYPE_APIC:
+ /*
+ * The DSDT may already reference the GSI in a device skipped by
+ * acpi_quirk_skip_i2c_client_enumeration(). Unregister the GSI
+ * to avoid EBUSY errors in this case.
+ */
+ acpi_unregister_gsi(data->index);
+ irq = acpi_register_gsi(NULL, data->index, data->trigger, data->polarity);
+ if (irq < 0)
+ pr_err("error %d getting APIC IRQ %d\n", irq, data->index);
+
+ return irq;
+ case X86_ACPI_IRQ_TYPE_GPIOINT:
+ /* Like acpi_dev_gpio_irq_get(), but without parsing ACPI resources */
+ ret = x86_android_tablet_get_gpiod(data->chip, data->index, &gpiod);
+ if (ret)
+ return ret;
+
+ irq = gpiod_to_irq(gpiod);
+ if (irq < 0) {
+ pr_err("error %d getting IRQ %s %d\n", irq, data->chip, data->index);
+ return irq;
+ }
+
+ irq_type = acpi_dev_get_irq_type(data->trigger, data->polarity);
+ if (irq_type != IRQ_TYPE_NONE && irq_type != irq_get_trigger_type(irq))
+ irq_set_irq_type(irq, irq_type);
+
+ return irq;
+ case X86_ACPI_IRQ_TYPE_PMIC:
+ status = acpi_get_handle(NULL, data->chip, &handle);
+ if (ACPI_FAILURE(status)) {
+ pr_err("error could not get %s handle\n", data->chip);
+ return -ENODEV;
+ }
+
+ adev = acpi_fetch_acpi_dev(handle);
+ if (!adev) {
+ pr_err("error could not get %s adev\n", data->chip);
+ return -ENODEV;
+ }
+
+ fwspec.fwnode = acpi_fwnode_handle(adev);
+ domain = irq_find_matching_fwspec(&fwspec, data->domain);
+ if (!domain) {
+ pr_err("error could not find IRQ domain for %s\n", data->chip);
+ return -ENODEV;
+ }
+
+ return irq_create_mapping(domain, data->index);
+ default:
+ return 0;
+ }
+}
+
+struct x86_i2c_client_info {
+ struct i2c_board_info board_info;
+ char *adapter_path;
+ struct x86_acpi_irq_data irq_data;
+};
+
+struct x86_serdev_info {
+ const char *ctrl_hid;
+ const char *ctrl_uid;
+ const char *ctrl_devname;
+ /*
+ * ATM the serdev core only supports of or ACPI matching; and sofar all
+ * Android x86 tablets DSDTs have usable serdev nodes, but sometimes
+ * under the wrong controller. So we just tie the existing serdev ACPI
+ * node to the right controller.
+ */
+ const char *serdev_hid;
+};
+
+struct x86_dev_info {
+ char *invalid_aei_gpiochip;
+ const char * const *modules;
+ const struct software_node *bat_swnode;
+ struct gpiod_lookup_table * const *gpiod_lookup_tables;
+ const struct x86_i2c_client_info *i2c_client_info;
+ const struct platform_device_info *pdev_info;
+ const struct x86_serdev_info *serdev_info;
+ int i2c_client_count;
+ int pdev_count;
+ int serdev_count;
+ int (*init)(void);
+ void (*exit)(void);
+};
+
+/* Generic / shared charger / battery settings */
+static const char * const tusb1211_chg_det_psy[] = { "tusb1211-charger-detect" };
+static const char * const bq24190_psy[] = { "bq24190-charger" };
+static const char * const bq25890_psy[] = { "bq25890-charger-0" };
+
+static const struct property_entry fg_bq24190_supply_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
+ { }
+};
+
+static const struct software_node fg_bq24190_supply_node = {
+ .properties = fg_bq24190_supply_props,
+};
+
+static const struct property_entry fg_bq25890_supply_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_psy),
+ { }
+};
+
+static const struct software_node fg_bq25890_supply_node = {
+ .properties = fg_bq25890_supply_props,
+};
+
+/* LiPo HighVoltage (max 4.35V) settings used by most devs with a HV bat. */
+static const struct property_entry generic_lipo_hv_4v35_battery_props[] = {
+ PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
+ PROPERTY_ENTRY_STRING("device-chemistry", "lithium-ion"),
+ PROPERTY_ENTRY_U32("precharge-current-microamp", 256000),
+ PROPERTY_ENTRY_U32("charge-term-current-microamp", 128000),
+ PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 1856000),
+ PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4352000),
+ PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
+ { }
+};
+
+static const struct software_node generic_lipo_hv_4v35_battery_node = {
+ .properties = generic_lipo_hv_4v35_battery_props,
+};
+
+/* For enabling the bq24190 5V boost based on id-pin */
+static struct regulator_consumer_supply intel_int3496_consumer = {
+ .supply = "vbus",
+ .dev_name = "intel-int3496",
+};
+
+static const struct regulator_init_data bq24190_vbus_init_data = {
+ .constraints = {
+ .name = "bq24190_vbus",
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .consumer_supplies = &intel_int3496_consumer,
+ .num_consumer_supplies = 1,
+};
+
+static struct bq24190_platform_data bq24190_pdata = {
+ .regulator_init_data = &bq24190_vbus_init_data,
+};
+
+static const char * const bq24190_modules[] __initconst = {
+ "intel_crystal_cove_charger", /* For the bq24190 IRQ */
+ "bq24190_charger", /* For the Vbus regulator for intel-int3496 */
+ NULL
+};
+
+/* Generic pdevs array and gpio-lookups for micro USB ID pin handling */
+static const struct platform_device_info int3496_pdevs[] __initconst = {
+ {
+ /* For micro USB ID pin handling */
+ .name = "intel-int3496",
+ .id = PLATFORM_DEVID_NONE,
+ },
+};
+
+static struct gpiod_lookup_table int3496_gpo2_pin22_gpios = {
+ .dev_id = "intel-int3496",
+ .table = {
+ GPIO_LOOKUP("INT33FC:02", 22, "id", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table int3496_reference_gpios = {
+ .dev_id = "intel-int3496",
+ .table = {
+ GPIO_LOOKUP("INT33FC:01", 15, "vbus", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("INT33FC:02", 18, "id", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+/* Acer Iconia One 7 B1-750 has an Android factory img with everything hardcoded */
+static const char * const acer_b1_750_mount_matrix[] = {
+ "-1", "0", "0",
+ "0", "1", "0",
+ "0", "0", "1"
+};
+
+static const struct property_entry acer_b1_750_bma250e_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", acer_b1_750_mount_matrix),
+ { }
+};
+
+static const struct software_node acer_b1_750_bma250e_node = {
+ .properties = acer_b1_750_bma250e_props,
+};
+
+static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = {
+ {
+ /* Novatek NVT-ts touchscreen */
+ .board_info = {
+ .type = "NVT-ts",
+ .addr = 0x34,
+ .dev_name = "NVT-ts",
+ },
+ .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,
+ },
+ }, {
+ /* BMA250E accelerometer */
+ .board_info = {
+ .type = "bma250e",
+ .addr = 0x18,
+ .swnode = &acer_b1_750_bma250e_node,
+ },
+ .adapter_path = "\\_SB_.I2C3",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FC:02",
+ .index = 25,
+ .trigger = ACPI_LEVEL_SENSITIVE,
+ .polarity = ACPI_ACTIVE_HIGH,
+ },
+ },
+};
+
+static struct gpiod_lookup_table acer_b1_750_goodix_gpios = {
+ .dev_id = "i2c-NVT-ts",
+ .table = {
+ GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_LOW),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table * const acer_b1_750_gpios[] = {
+ &acer_b1_750_goodix_gpios,
+ &int3496_reference_gpios,
+ NULL
+};
+
+static const struct x86_dev_info acer_b1_750_info __initconst = {
+ .i2c_client_info = acer_b1_750_i2c_clients,
+ .i2c_client_count = ARRAY_SIZE(acer_b1_750_i2c_clients),
+ .pdev_info = int3496_pdevs,
+ .pdev_count = ARRAY_SIZE(int3496_pdevs),
+ .gpiod_lookup_tables = acer_b1_750_gpios,
+};
+
+/*
+ * 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-button device for this.
+ */
+static struct gpio_keys_button advantech_mica_071_button = {
+ .code = KEY_PROG1,
+ /* .gpio gets filled in by advantech_mica_071_init() */
+ .active_low = true,
+ .desc = "prog1_key",
+ .type = EV_KEY,
+ .wakeup = false,
+ .debounce_interval = 50,
+};
+
+static const struct gpio_keys_platform_data advantech_mica_071_button_pdata __initconst = {
+ .buttons = &advantech_mica_071_button,
+ .nbuttons = 1,
+ .name = "prog1_key",
+};
+
+static const struct platform_device_info advantech_mica_071_pdevs[] __initconst = {
+ {
+ .name = "gpio-keys",
+ .id = PLATFORM_DEVID_AUTO,
+ .data = &advantech_mica_071_button_pdata,
+ .size_data = sizeof(advantech_mica_071_button_pdata),
+ },
+};
+
+static int __init advantech_mica_071_init(void)
+{
+ struct gpio_desc *gpiod;
+ int ret;
+
+ ret = x86_android_tablet_get_gpiod("INT33FC:00", 2, &gpiod);
+ if (ret < 0)
+ return ret;
+ advantech_mica_071_button.gpio = desc_to_gpio(gpiod);
+
+ return 0;
+}
+
+static const struct x86_dev_info advantech_mica_071_info __initconst = {
+ .pdev_info = advantech_mica_071_pdevs,
+ .pdev_count = ARRAY_SIZE(advantech_mica_071_pdevs),
+ .init = advantech_mica_071_init,
+};
+
+/* Asus ME176C and TF103C tablets shared data */
+static struct gpio_keys_button asus_me176c_tf103c_lid = {
+ .code = SW_LID,
+ /* .gpio gets filled in by asus_me176c_tf103c_init() */
+ .active_low = true,
+ .desc = "lid_sw",
+ .type = EV_SW,
+ .wakeup = true,
+ .debounce_interval = 50,
+};
+
+static const struct gpio_keys_platform_data asus_me176c_tf103c_lid_pdata __initconst = {
+ .buttons = &asus_me176c_tf103c_lid,
+ .nbuttons = 1,
+ .name = "lid_sw",
+};
+
+static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst = {
+ {
+ .name = "gpio-keys",
+ .id = PLATFORM_DEVID_AUTO,
+ .data = &asus_me176c_tf103c_lid_pdata,
+ .size_data = sizeof(asus_me176c_tf103c_lid_pdata),
+ },
+ {
+ /* For micro USB ID pin handling */
+ .name = "intel-int3496",
+ .id = PLATFORM_DEVID_NONE,
+ },
+};
+
+static int __init asus_me176c_tf103c_init(void)
+{
+ struct gpio_desc *gpiod;
+ int ret;
+
+ ret = x86_android_tablet_get_gpiod("INT33FC:02", 12, &gpiod);
+ if (ret < 0)
+ return ret;
+ asus_me176c_tf103c_lid.gpio = desc_to_gpio(gpiod);
+
+ return 0;
+}
+
+
+/* Asus ME176C tablets have an Android factory img with everything hardcoded */
+static const char * const asus_me176c_accel_mount_matrix[] = {
+ "-1", "0", "0",
+ "0", "1", "0",
+ "0", "0", "1"
+};
+
+static const struct property_entry asus_me176c_accel_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", asus_me176c_accel_mount_matrix),
+ { }
+};
+
+static const struct software_node asus_me176c_accel_node = {
+ .properties = asus_me176c_accel_props,
+};
+
+static const struct property_entry asus_me176c_bq24190_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
+ PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
+ PROPERTY_ENTRY_U32("ti,system-minimum-microvolt", 3600000),
+ PROPERTY_ENTRY_BOOL("omit-battery-class"),
+ PROPERTY_ENTRY_BOOL("disable-reset"),
+ { }
+};
+
+static const struct software_node asus_me176c_bq24190_node = {
+ .properties = asus_me176c_bq24190_props,
+};
+
+static const struct property_entry asus_me176c_ug3105_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
+ PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
+ PROPERTY_ENTRY_U32("upisemi,rsns-microohm", 10000),
+ { }
+};
+
+static const struct software_node asus_me176c_ug3105_node = {
+ .properties = asus_me176c_ug3105_props,
+};
+
+static const struct x86_i2c_client_info asus_me176c_i2c_clients[] __initconst = {
+ {
+ /* bq24297 battery charger */
+ .board_info = {
+ .type = "bq24190",
+ .addr = 0x6b,
+ .dev_name = "bq24297",
+ .swnode = &asus_me176c_bq24190_node,
+ .platform_data = &bq24190_pdata,
+ },
+ .adapter_path = "\\_SB_.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_PMIC,
+ .chip = "\\_SB_.I2C7.PMIC",
+ .domain = DOMAIN_BUS_WAKEUP,
+ .index = 0,
+ },
+ }, {
+ /* ug3105 battery monitor */
+ .board_info = {
+ .type = "ug3105",
+ .addr = 0x70,
+ .dev_name = "ug3105",
+ .swnode = &asus_me176c_ug3105_node,
+ },
+ .adapter_path = "\\_SB_.I2C1",
+ }, {
+ /* ak09911 compass */
+ .board_info = {
+ .type = "ak09911",
+ .addr = 0x0c,
+ .dev_name = "ak09911",
+ },
+ .adapter_path = "\\_SB_.I2C5",
+ }, {
+ /* kxtj21009 accel */
+ .board_info = {
+ .type = "kxtj21009",
+ .addr = 0x0f,
+ .dev_name = "kxtj21009",
+ .swnode = &asus_me176c_accel_node,
+ },
+ .adapter_path = "\\_SB_.I2C5",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_APIC,
+ .index = 0x44,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ },
+ }, {
+ /* goodix touchscreen */
+ .board_info = {
+ .type = "GDIX1001:00",
+ .addr = 0x14,
+ .dev_name = "goodix_ts",
+ },
+ .adapter_path = "\\_SB_.I2C6",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_APIC,
+ .index = 0x45,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ },
+ },
+};
+
+static const struct x86_serdev_info asus_me176c_serdevs[] __initconst = {
+ {
+ .ctrl_hid = "80860F0A",
+ .ctrl_uid = "2",
+ .ctrl_devname = "serial0",
+ .serdev_hid = "BCM2E3A",
+ },
+};
+
+static struct gpiod_lookup_table asus_me176c_goodix_gpios = {
+ .dev_id = "i2c-goodix_ts",
+ .table = {
+ GPIO_LOOKUP("INT33FC:00", 60, "reset", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("INT33FC:02", 28, "irq", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table * const asus_me176c_gpios[] = {
+ &int3496_gpo2_pin22_gpios,
+ &asus_me176c_goodix_gpios,
+ NULL
+};
+
+static const struct x86_dev_info asus_me176c_info __initconst = {
+ .i2c_client_info = asus_me176c_i2c_clients,
+ .i2c_client_count = ARRAY_SIZE(asus_me176c_i2c_clients),
+ .pdev_info = asus_me176c_tf103c_pdevs,
+ .pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
+ .serdev_info = asus_me176c_serdevs,
+ .serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
+ .gpiod_lookup_tables = asus_me176c_gpios,
+ .bat_swnode = &generic_lipo_hv_4v35_battery_node,
+ .modules = bq24190_modules,
+ .invalid_aei_gpiochip = "INT33FC:02",
+ .init = asus_me176c_tf103c_init,
+};
+
+/* Asus TF103C tablets have an Android factory img with everything hardcoded */
+static const char * const asus_tf103c_accel_mount_matrix[] = {
+ "0", "-1", "0",
+ "-1", "0", "0",
+ "0", "0", "1"
+};
+
+static const struct property_entry asus_tf103c_accel_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", asus_tf103c_accel_mount_matrix),
+ { }
+};
+
+static const struct software_node asus_tf103c_accel_node = {
+ .properties = asus_tf103c_accel_props,
+};
+
+static const struct property_entry asus_tf103c_touchscreen_props[] = {
+ PROPERTY_ENTRY_STRING("compatible", "atmel,atmel_mxt_ts"),
+ { }
+};
+
+static const struct software_node asus_tf103c_touchscreen_node = {
+ .properties = asus_tf103c_touchscreen_props,
+};
+
+static const struct property_entry asus_tf103c_battery_props[] = {
+ PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
+ PROPERTY_ENTRY_STRING("device-chemistry", "lithium-ion-polymer"),
+ PROPERTY_ENTRY_U32("precharge-current-microamp", 256000),
+ PROPERTY_ENTRY_U32("charge-term-current-microamp", 128000),
+ PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 2048000),
+ PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4208000),
+ PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
+ { }
+};
+
+static const struct software_node asus_tf103c_battery_node = {
+ .properties = asus_tf103c_battery_props,
+};
+
+static const struct property_entry asus_tf103c_bq24190_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
+ PROPERTY_ENTRY_REF("monitored-battery", &asus_tf103c_battery_node),
+ PROPERTY_ENTRY_U32("ti,system-minimum-microvolt", 3600000),
+ PROPERTY_ENTRY_BOOL("omit-battery-class"),
+ PROPERTY_ENTRY_BOOL("disable-reset"),
+ { }
+};
+
+static const struct software_node asus_tf103c_bq24190_node = {
+ .properties = asus_tf103c_bq24190_props,
+};
+
+static const struct property_entry asus_tf103c_ug3105_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
+ PROPERTY_ENTRY_REF("monitored-battery", &asus_tf103c_battery_node),
+ PROPERTY_ENTRY_U32("upisemi,rsns-microohm", 5000),
+ { }
+};
+
+static const struct software_node asus_tf103c_ug3105_node = {
+ .properties = asus_tf103c_ug3105_props,
+};
+
+static const struct x86_i2c_client_info asus_tf103c_i2c_clients[] __initconst = {
+ {
+ /* bq24297 battery charger */
+ .board_info = {
+ .type = "bq24190",
+ .addr = 0x6b,
+ .dev_name = "bq24297",
+ .swnode = &asus_tf103c_bq24190_node,
+ .platform_data = &bq24190_pdata,
+ },
+ .adapter_path = "\\_SB_.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_PMIC,
+ .chip = "\\_SB_.I2C7.PMIC",
+ .domain = DOMAIN_BUS_WAKEUP,
+ .index = 0,
+ },
+ }, {
+ /* ug3105 battery monitor */
+ .board_info = {
+ .type = "ug3105",
+ .addr = 0x70,
+ .dev_name = "ug3105",
+ .swnode = &asus_tf103c_ug3105_node,
+ },
+ .adapter_path = "\\_SB_.I2C1",
+ }, {
+ /* ak09911 compass */
+ .board_info = {
+ .type = "ak09911",
+ .addr = 0x0c,
+ .dev_name = "ak09911",
+ },
+ .adapter_path = "\\_SB_.I2C5",
+ }, {
+ /* kxtj21009 accel */
+ .board_info = {
+ .type = "kxtj21009",
+ .addr = 0x0f,
+ .dev_name = "kxtj21009",
+ .swnode = &asus_tf103c_accel_node,
+ },
+ .adapter_path = "\\_SB_.I2C5",
+ }, {
+ /* atmel touchscreen */
+ .board_info = {
+ .type = "atmel_mxt_ts",
+ .addr = 0x4a,
+ .dev_name = "atmel_mxt_ts",
+ .swnode = &asus_tf103c_touchscreen_node,
+ },
+ .adapter_path = "\\_SB_.I2C6",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FC:02",
+ .index = 28,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ },
+ },
+};
+
+static struct gpiod_lookup_table * const asus_tf103c_gpios[] = {
+ &int3496_gpo2_pin22_gpios,
+ NULL
+};
+
+static const struct x86_dev_info asus_tf103c_info __initconst = {
+ .i2c_client_info = asus_tf103c_i2c_clients,
+ .i2c_client_count = ARRAY_SIZE(asus_tf103c_i2c_clients),
+ .pdev_info = asus_me176c_tf103c_pdevs,
+ .pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
+ .gpiod_lookup_tables = asus_tf103c_gpios,
+ .bat_swnode = &asus_tf103c_battery_node,
+ .modules = bq24190_modules,
+ .invalid_aei_gpiochip = "INT33FC:02",
+ .init = asus_me176c_tf103c_init,
+};
+
+/*
+ * 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,
+ },
+ },
+};
+
+static int __init chuwi_hi8_init(void)
+{
+ /*
+ * 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;
+}
+
+static 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,
+};
+
+#define CZC_EC_EXTRA_PORT 0x68
+#define CZC_EC_ANDROID_KEYS 0x63
+
+static int __init czc_p10t_init(void)
+{
+ /*
+ * 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;
+}
+
+static const struct x86_dev_info czc_p10t __initconst = {
+ .init = czc_p10t_init,
+};
+
+/* Lenovo Yoga Book X90F / X91F / X91L need manual instantiation of the fg client */
+static const struct x86_i2c_client_info lenovo_yogabook_x9x_i2c_clients[] __initconst = {
+ {
+ /* BQ27542 fuel-gauge */
+ .board_info = {
+ .type = "bq27542",
+ .addr = 0x55,
+ .dev_name = "bq27542",
+ .swnode = &fg_bq25890_supply_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ },
+};
+
+static const struct x86_dev_info lenovo_yogabook_x9x_info __initconst = {
+ .i2c_client_info = lenovo_yogabook_x9x_i2c_clients,
+ .i2c_client_count = ARRAY_SIZE(lenovo_yogabook_x9x_i2c_clients),
+};
+
+/* Lenovo Yoga Tablet 2 1050F/L's Android factory img has everything hardcoded */
+static const struct property_entry lenovo_yoga_tab2_830_1050_bq24190_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
+ PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
+ PROPERTY_ENTRY_BOOL("omit-battery-class"),
+ PROPERTY_ENTRY_BOOL("disable-reset"),
+ { }
+};
+
+static const struct software_node lenovo_yoga_tab2_830_1050_bq24190_node = {
+ .properties = lenovo_yoga_tab2_830_1050_bq24190_props,
+};
+
+/* This gets filled by lenovo_yoga_tab2_830_1050_init() */
+static struct rmi_device_platform_data lenovo_yoga_tab2_830_1050_rmi_pdata = { };
+
+static struct lp855x_platform_data lenovo_yoga_tab2_830_1050_lp8557_pdata = {
+ .device_control = 0x86,
+ .initial_brightness = 128,
+};
+
+static const struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __initconst = {
+ {
+ /* bq24292i battery charger */
+ .board_info = {
+ .type = "bq24190",
+ .addr = 0x6b,
+ .dev_name = "bq24292i",
+ .swnode = &lenovo_yoga_tab2_830_1050_bq24190_node,
+ .platform_data = &bq24190_pdata,
+ },
+ .adapter_path = "\\_SB_.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FC:02",
+ .index = 2,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_HIGH,
+ },
+ }, {
+ /* BQ27541 fuel-gauge */
+ .board_info = {
+ .type = "bq27541",
+ .addr = 0x55,
+ .dev_name = "bq27541",
+ .swnode = &fg_bq24190_supply_node,
+ },
+ .adapter_path = "\\_SB_.I2C1",
+ }, {
+ /* Synaptics RMI touchscreen */
+ .board_info = {
+ .type = "rmi4_i2c",
+ .addr = 0x38,
+ .dev_name = "rmi4_i2c",
+ .platform_data = &lenovo_yoga_tab2_830_1050_rmi_pdata,
+ },
+ .adapter_path = "\\_SB_.I2C6",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_APIC,
+ .index = 0x45,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_HIGH,
+ },
+ }, {
+ /* LP8557 Backlight controller */
+ .board_info = {
+ .type = "lp8557",
+ .addr = 0x2c,
+ .dev_name = "lp8557",
+ .platform_data = &lenovo_yoga_tab2_830_1050_lp8557_pdata,
+ },
+ .adapter_path = "\\_SB_.I2C3",
+ },
+};
+
+static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_int3496_gpios = {
+ .dev_id = "intel-int3496",
+ .table = {
+ GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("INT33FC:02", 24, "id", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+#define LENOVO_YOGA_TAB2_830_1050_CODEC_NAME "spi-10WM5102:00"
+
+static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
+ .dev_id = LENOVO_YOGA_TAB2_830_1050_CODEC_NAME,
+ .table = {
+ GPIO_LOOKUP("gpio_crystalcove", 3, "reset", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("INT33FC:01", 23, "wlf,ldoena", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("arizona", 2, "wlf,spkvdd-ena", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("arizona", 4, "wlf,micd-pol", GPIO_ACTIVE_LOW),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
+ &lenovo_yoga_tab2_830_1050_int3496_gpios,
+ &lenovo_yoga_tab2_830_1050_codec_gpios,
+ NULL
+};
+
+static int __init lenovo_yoga_tab2_830_1050_init(void);
+static void lenovo_yoga_tab2_830_1050_exit(void);
+
+static struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = {
+ .i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
+ /* i2c_client_count gets set by lenovo_yoga_tab2_830_1050_init() */
+ .pdev_info = int3496_pdevs,
+ .pdev_count = ARRAY_SIZE(int3496_pdevs),
+ .gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
+ .bat_swnode = &generic_lipo_hv_4v35_battery_node,
+ .modules = bq24190_modules,
+ .invalid_aei_gpiochip = "INT33FC:02",
+ .init = lenovo_yoga_tab2_830_1050_init,
+ .exit = lenovo_yoga_tab2_830_1050_exit,
+};
+
+/*
+ * The Lenovo Yoga Tablet 2 830 and 1050 (8" vs 10") versions use the same
+ * mainboard, but they need some different treatment related to the display:
+ * 1. The 830 uses a portrait LCD panel with a landscape touchscreen, requiring
+ * the touchscreen driver to adjust the touch-coords to match the LCD.
+ * 2. Both use an TI LP8557 LED backlight controller. On the 1050 the LP8557's
+ * PWM input is connected to the PMIC's PWM output and everything works fine
+ * with the defaults programmed into the LP8557 by the BIOS.
+ * But on the 830 the LP8557's PWM input is connected to a PWM output coming
+ * from the LCD panel's controller. The Android code has a hack in the i915
+ * driver to write the non-standard DSI reg 0x9f with the desired backlight
+ * level to set the duty-cycle of the LCD's PWM output.
+ *
+ * To avoid having to have a similar hack in the mainline kernel the LP8557
+ * entry in lenovo_yoga_tab2_830_1050_i2c_clients instead just programs the
+ * LP8557 to directly set the level, ignoring the PWM input. This means that
+ * the LP8557 i2c_client should only be instantiated on the 830.
+ */
+static int __init lenovo_yoga_tab2_830_1050_init_display(void)
+{
+ struct gpio_desc *gpiod;
+ int ret;
+
+ /* Use PMIC GPIO 10 bootstrap pin to differentiate 830 vs 1050 */
+ ret = x86_android_tablet_get_gpiod("gpio_crystalcove", 10, &gpiod);
+ if (ret)
+ return ret;
+
+ ret = gpiod_get_value_cansleep(gpiod);
+ if (ret) {
+ pr_info("detected Lenovo Yoga Tablet 2 1050F/L\n");
+ lenovo_yoga_tab2_830_1050_info.i2c_client_count =
+ ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients) - 1;
+ } else {
+ pr_info("detected Lenovo Yoga Tablet 2 830F/L\n");
+ lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.swap_axes = true;
+ lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.flip_y = true;
+ lenovo_yoga_tab2_830_1050_info.i2c_client_count =
+ ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients);
+ }
+
+ return 0;
+}
+
+/* SUS (INT33FC:02) pin 6 needs to be configured as pmu_clk for the audio codec */
+static const struct pinctrl_map lenovo_yoga_tab2_830_1050_codec_pinctrl_map =
+ PIN_MAP_MUX_GROUP(LENOVO_YOGA_TAB2_830_1050_CODEC_NAME, "codec_32khz_clk",
+ "INT33FC:02", "pmu_clk2_grp", "pmu_clk");
+
+static struct pinctrl *lenovo_yoga_tab2_830_1050_codec_pinctrl;
+static struct sys_off_handler *lenovo_yoga_tab2_830_1050_sys_off_handler;
+
+static int __init lenovo_yoga_tab2_830_1050_init_codec(void)
+{
+ struct device *codec_dev;
+ struct pinctrl *pinctrl;
+ int ret;
+
+ codec_dev = bus_find_device_by_name(&spi_bus_type, NULL,
+ LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
+ if (!codec_dev) {
+ pr_err("error cannot find %s device\n", LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
+ return -ENODEV;
+ }
+
+ ret = pinctrl_register_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map, 1);
+ if (ret)
+ goto err_put_device;
+
+ pinctrl = pinctrl_get_select(codec_dev, "codec_32khz_clk");
+ if (IS_ERR(pinctrl)) {
+ ret = dev_err_probe(codec_dev, PTR_ERR(pinctrl), "selecting codec_32khz_clk\n");
+ goto err_unregister_mappings;
+ }
+
+ /* We're done with the codec_dev now */
+ put_device(codec_dev);
+
+ lenovo_yoga_tab2_830_1050_codec_pinctrl = pinctrl;
+ return 0;
+
+err_unregister_mappings:
+ pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
+err_put_device:
+ put_device(codec_dev);
+ return ret;
+}
+
+/*
+ * These tablet's DSDT does not set acpi_gbl_reduced_hardware, so acpi_power_off
+ * gets used as pm_power_off handler. This causes "poweroff" on these tablets
+ * to hang hard. Requiring pressing the powerbutton for 30 seconds *twice*
+ * followed by a normal 3 second press to recover. Avoid this by doing an EFI
+ * poweroff instead.
+ */
+static int lenovo_yoga_tab2_830_1050_power_off(struct sys_off_data *data)
+{
+ efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
+
+ return NOTIFY_DONE;
+}
+
+static int __init lenovo_yoga_tab2_830_1050_init(void)
+{
+ int ret;
+
+ ret = lenovo_yoga_tab2_830_1050_init_display();
+ if (ret)
+ return ret;
+
+ ret = lenovo_yoga_tab2_830_1050_init_codec();
+ if (ret)
+ return ret;
+
+ /* SYS_OFF_PRIO_FIRMWARE + 1 so that it runs before acpi_power_off */
+ lenovo_yoga_tab2_830_1050_sys_off_handler =
+ register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_FIRMWARE + 1,
+ lenovo_yoga_tab2_830_1050_power_off, NULL);
+ if (IS_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler))
+ return PTR_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler);
+
+ return 0;
+}
+
+static void lenovo_yoga_tab2_830_1050_exit(void)
+{
+ unregister_sys_off_handler(lenovo_yoga_tab2_830_1050_sys_off_handler);
+
+ if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
+ pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
+ pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
+ }
+}
+
+/* Lenovo Yoga Tab 3 Pro YT3-X90F */
+
+/*
+ * There are 2 batteries, with 2 bq27500 fuel-gauges and 2 bq25892 chargers,
+ * "bq25890-charger-1" is instantiated from: drivers/i2c/busses/i2c-cht-wc.c.
+ */
+static const char * const lenovo_yt3_bq25892_0_suppliers[] = { "cht_wcove_pwrsrc" };
+static const char * const bq25890_1_psy[] = { "bq25890-charger-1" };
+
+static const struct property_entry fg_bq25890_1_supply_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_1_psy),
+ { }
+};
+
+static const struct software_node fg_bq25890_1_supply_node = {
+ .properties = fg_bq25890_1_supply_props,
+};
+
+/* bq25892 charger settings for the flat lipo battery behind the screen */
+static const struct property_entry lenovo_yt3_bq25892_0_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_0_suppliers),
+ PROPERTY_ENTRY_STRING("linux,power-supply-name", "bq25892-second-chrg"),
+ PROPERTY_ENTRY_U32("linux,iinlim-percentage", 40),
+ PROPERTY_ENTRY_BOOL("linux,skip-reset"),
+ /* Values taken from Android Factory Image */
+ PROPERTY_ENTRY_U32("ti,charge-current", 2048000),
+ PROPERTY_ENTRY_U32("ti,battery-regulation-voltage", 4352000),
+ PROPERTY_ENTRY_U32("ti,termination-current", 128000),
+ PROPERTY_ENTRY_U32("ti,precharge-current", 128000),
+ PROPERTY_ENTRY_U32("ti,minimum-sys-voltage", 3700000),
+ PROPERTY_ENTRY_U32("ti,boost-voltage", 4998000),
+ PROPERTY_ENTRY_U32("ti,boost-max-current", 500000),
+ PROPERTY_ENTRY_BOOL("ti,use-ilim-pin"),
+ { }
+};
+
+static const struct software_node lenovo_yt3_bq25892_0_node = {
+ .properties = lenovo_yt3_bq25892_0_props,
+};
+
+static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = {
+ {
+ /* bq27500 fuel-gauge for the flat lipo battery behind the screen */
+ .board_info = {
+ .type = "bq27500",
+ .addr = 0x55,
+ .dev_name = "bq27500_0",
+ .swnode = &fg_bq25890_supply_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ }, {
+ /* bq25892 charger for the flat lipo battery behind the screen */
+ .board_info = {
+ .type = "bq25892",
+ .addr = 0x6b,
+ .dev_name = "bq25892_0",
+ .swnode = &lenovo_yt3_bq25892_0_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FF:01",
+ .index = 5,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ },
+ }, {
+ /* bq27500 fuel-gauge for the round li-ion cells in the hinge */
+ .board_info = {
+ .type = "bq27500",
+ .addr = 0x55,
+ .dev_name = "bq27500_1",
+ .swnode = &fg_bq25890_1_supply_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C2",
+ }
+};
+
+static int __init lenovo_yt3_init(void)
+{
+ struct gpio_desc *gpiod;
+ int ret;
+
+ /*
+ * The "bq25892_0" charger IC has its /CE (Charge-Enable) and OTG pins
+ * connected to GPIOs, rather then having them hardwired to the correct
+ * values as is normally done.
+ *
+ * The bq25890_charger driver controls these through I2C, but this only
+ * works if not overridden by the pins. Set these pins here:
+ * 1. Set /CE to 0 to allow charging.
+ * 2. Set OTG to 0 disable V5 boost output since the 5V boost output of
+ * the main "bq25892_1" charger is used when necessary.
+ */
+
+ /* /CE pin */
+ ret = x86_android_tablet_get_gpiod("INT33FF:02", 22, &gpiod);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * The gpio_desc returned by x86_android_tablet_get_gpiod() is a "raw"
+ * gpio_desc, that is there is no way to pass lookup-flags like
+ * GPIO_ACTIVE_LOW. Set the GPIO to 0 here to enable charging since
+ * the /CE pin is active-low, but not marked as such in the gpio_desc.
+ */
+ gpiod_set_value(gpiod, 0);
+
+ /* OTG pin */
+ ret = x86_android_tablet_get_gpiod("INT33FF:03", 19, &gpiod);
+ if (ret < 0)
+ return ret;
+
+ gpiod_set_value(gpiod, 0);
+
+ return 0;
+}
+
+static const struct x86_dev_info lenovo_yt3_info __initconst = {
+ .i2c_client_info = lenovo_yt3_i2c_clients,
+ .i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
+ .init = lenovo_yt3_init,
+};
+
+/* Medion Lifetab S10346 tablets have an Android factory img 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"),
+ { }
+};
+
+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 accel */
+ .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,
+ },
+ }, {
+ /* 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,
+ },
+ },
+};
+
+static struct gpiod_lookup_table medion_lifetab_s10346_goodix_gpios = {
+ .dev_id = "i2c-goodix_ts",
+ .table = {
+ GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table * const medion_lifetab_s10346_gpios[] = {
+ &medion_lifetab_s10346_goodix_gpios,
+ NULL
+};
+
+static 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),
+ .gpiod_lookup_tables = medion_lifetab_s10346_gpios,
+};
+
+/* Nextbook Ares 8 tablets have an Android factory img 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 accel */
+ .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,
+ },
+ },
+};
+
+static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = {
+ &int3496_reference_gpios,
+ NULL
+};
+
+static 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 = ARRAY_SIZE(int3496_pdevs),
+ .gpiod_lookup_tables = nextbook_ares8_gpios,
+ .invalid_aei_gpiochip = "INT33FC:02",
+};
+
+/*
+ * 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 fwnode 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),
+ { }
+};
+
+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 accel */
+ .board_info = {
+ .type = "kxcj91008",
+ .addr = 0x0f,
+ .dev_name = "kxcj91008",
+ .swnode = &whitelabel_tm800a550l_accel_node,
+ },
+ .adapter_path = "\\_SB_.I2C3",
+ },
+};
+
+static struct gpiod_lookup_table whitelabel_tm800a550l_goodix_gpios = {
+ .dev_id = "i2c-goodix_ts",
+ .table = {
+ GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table * const whitelabel_tm800a550l_gpios[] = {
+ &whitelabel_tm800a550l_goodix_gpios,
+ NULL
+};
+
+static 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),
+ .gpiod_lookup_tables = whitelabel_tm800a550l_gpios,
+};
+
+/*
+ * 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",
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C3",
+ },
+};
+
+static 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),
+};
+
+static const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
+ {
+ /* Acer Iconia One 7 B1-750 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"),
+ },
+ .driver_data = (void *)&acer_b1_750_info,
+ },
+ {
+ /* Advantech MICA-071 */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Advantech"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MICA-071"),
+ },
+ .driver_data = (void *)&advantech_mica_071_info,
+ },
+ {
+ /* Asus MeMO Pad 7 ME176C */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
+ },
+ .driver_data = (void *)&asus_me176c_info,
+ },
+ {
+ /* Asus TF103C */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
+ },
+ .driver_data = (void *)&asus_tf103c_info,
+ },
+ {
+ /* Chuwi Hi8 (CWI509) */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
+ DMI_MATCH(DMI_BOARD_NAME, "BYT-PA03C"),
+ DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "S806"),
+ },
+ .driver_data = (void *)&chuwi_hi8_info,
+ },
+ {
+ /* CZC P10T */
+ .ident = "CZC ODEON TPC-10 (\"P10T\")",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "CZC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ODEON*TPC-10"),
+ },
+ .driver_data = (void *)&czc_p10t,
+ },
+ {
+ /* CZC P10T variant */
+ .ident = "ViewSonic ViewPad 10",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ViewSonic"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VPAD10"),
+ },
+ .driver_data = (void *)&czc_p10t,
+ },
+ {
+ /* Lenovo Yoga Book X90F / X91F / X91L */
+ .matches = {
+ /* Non exact match to match all versions */
+ DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
+ },
+ .driver_data = (void *)&lenovo_yogabook_x9x_info,
+ },
+ {
+ /*
+ * Lenovo Yoga Tablet 2 830F/L or 1050F/L (The 8" and 10"
+ * Lenovo Yoga Tablet 2 use the same mainboard)
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
+ DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+ /* Partial match on beginning of BIOS version */
+ DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
+ },
+ .driver_data = (void *)&lenovo_yoga_tab2_830_1050_info,
+ },
+ {
+ /* Lenovo Yoga Tab 3 Pro YT3-X90F */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
+ },
+ .driver_data = (void *)&lenovo_yt3_info,
+ },
+ {
+ /* Medion Lifetab S10346 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+ /* Above strings are much too generic, also match on BIOS date */
+ DMI_MATCH(DMI_BIOS_DATE, "10/22/2015"),
+ },
+ .driver_data = (void *)&medion_lifetab_s10346_info,
+ },
+ {
+ /* Nextbook Ares 8 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
+ },
+ .driver_data = (void *)&nextbook_ares8_info,
+ },
+ {
+ /* Whitelabel (sold as various brands) TM800A550L */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+ /* Above strings are too generic, also match on BIOS version */
+ DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
+ },
+ .driver_data = (void *)&whitelabel_tm800a550l_info,
+ },
+ {
+ /* Xiaomi Mi Pad 2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
+ },
+ .driver_data = (void *)&xiaomi_mipad2_info,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(dmi, x86_android_tablet_ids);
+
+static int i2c_client_count;
+static int pdev_count;
+static int serdev_count;
+static struct i2c_client **i2c_clients;
+static struct platform_device **pdevs;
+static struct serdev_device **serdevs;
+static struct gpiod_lookup_table * const *gpiod_lookup_tables;
+static const struct software_node *bat_swnode;
+static void (*exit_handler)(void);
+
+static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info,
+ int idx)
+{
+ const struct x86_i2c_client_info *client_info = &dev_info->i2c_client_info[idx];
+ struct i2c_board_info board_info = client_info->board_info;
+ struct i2c_adapter *adap;
+ acpi_handle handle;
+ acpi_status status;
+
+ board_info.irq = x86_acpi_irq_helper_get(&client_info->irq_data);
+ if (board_info.irq < 0)
+ return board_info.irq;
+
+ status = acpi_get_handle(NULL, client_info->adapter_path, &handle);
+ if (ACPI_FAILURE(status)) {
+ pr_err("Error could not get %s handle\n", client_info->adapter_path);
+ return -ENODEV;
+ }
+
+ adap = i2c_acpi_find_adapter_by_handle(handle);
+ if (!adap) {
+ pr_err("error could not get %s adapter\n", client_info->adapter_path);
+ return -ENODEV;
+ }
+
+ i2c_clients[idx] = i2c_new_client_device(adap, &board_info);
+ put_device(&adap->dev);
+ if (IS_ERR(i2c_clients[idx]))
+ return dev_err_probe(&adap->dev, PTR_ERR(i2c_clients[idx]),
+ "creating I2C-client %d\n", idx);
+
+ return 0;
+}
+
+static __init int x86_instantiate_serdev(const struct x86_serdev_info *info, int idx)
+{
+ struct acpi_device *ctrl_adev, *serdev_adev;
+ struct serdev_device *serdev;
+ struct device *ctrl_dev;
+ int ret = -ENODEV;
+
+ ctrl_adev = acpi_dev_get_first_match_dev(info->ctrl_hid, info->ctrl_uid, -1);
+ if (!ctrl_adev) {
+ pr_err("error could not get %s/%s ctrl adev\n",
+ info->ctrl_hid, info->ctrl_uid);
+ return -ENODEV;
+ }
+
+ serdev_adev = acpi_dev_get_first_match_dev(info->serdev_hid, NULL, -1);
+ if (!serdev_adev) {
+ pr_err("error could not get %s serdev adev\n", info->serdev_hid);
+ goto put_ctrl_adev;
+ }
+
+ /* get_first_physical_node() returns a weak ref, no need to put() it */
+ ctrl_dev = acpi_get_first_physical_node(ctrl_adev);
+ if (!ctrl_dev) {
+ pr_err("error could not get %s/%s ctrl physical dev\n",
+ info->ctrl_hid, info->ctrl_uid);
+ goto put_serdev_adev;
+ }
+
+ /* ctrl_dev now points to the controller's parent, get the controller */
+ ctrl_dev = device_find_child_by_name(ctrl_dev, info->ctrl_devname);
+ if (!ctrl_dev) {
+ pr_err("error could not get %s/%s %s ctrl dev\n",
+ info->ctrl_hid, info->ctrl_uid, info->ctrl_devname);
+ goto put_serdev_adev;
+ }
+
+ serdev = serdev_device_alloc(to_serdev_controller(ctrl_dev));
+ if (!serdev) {
+ ret = -ENOMEM;
+ goto put_serdev_adev;
+ }
+
+ ACPI_COMPANION_SET(&serdev->dev, serdev_adev);
+ acpi_device_set_enumerated(serdev_adev);
+
+ ret = serdev_device_add(serdev);
+ if (ret) {
+ dev_err(&serdev->dev, "error %d adding serdev\n", ret);
+ serdev_device_put(serdev);
+ goto put_serdev_adev;
+ }
+
+ serdevs[idx] = serdev;
+
+put_serdev_adev:
+ acpi_dev_put(serdev_adev);
+put_ctrl_adev:
+ acpi_dev_put(ctrl_adev);
+ return ret;
+}
+
+static void x86_android_tablet_cleanup(void)
+{
+ int i;
+
+ for (i = 0; i < serdev_count; i++) {
+ if (serdevs[i])
+ serdev_device_remove(serdevs[i]);
+ }
+
+ kfree(serdevs);
+
+ for (i = 0; i < pdev_count; i++)
+ platform_device_unregister(pdevs[i]);
+
+ kfree(pdevs);
+
+ for (i = 0; i < i2c_client_count; i++)
+ i2c_unregister_device(i2c_clients[i]);
+
+ kfree(i2c_clients);
+
+ if (exit_handler)
+ exit_handler();
+
+ for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
+ gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
+
+ software_node_unregister(bat_swnode);
+}
+
+static __init int x86_android_tablet_init(void)
+{
+ const struct x86_dev_info *dev_info;
+ const struct dmi_system_id *id;
+ struct gpio_chip *chip;
+ int i, ret = 0;
+
+ id = dmi_first_match(x86_android_tablet_ids);
+ if (!id)
+ return -ENODEV;
+
+ dev_info = id->driver_data;
+
+ /*
+ * The broken DSDTs on these devices often also include broken
+ * _AEI (ACPI Event Interrupt) handlers, disable these.
+ */
+ if (dev_info->invalid_aei_gpiochip) {
+ chip = gpiochip_find(dev_info->invalid_aei_gpiochip,
+ gpiochip_find_match_label);
+ if (!chip) {
+ pr_err("error cannot find GPIO chip %s\n", dev_info->invalid_aei_gpiochip);
+ return -ENODEV;
+ }
+ acpi_gpiochip_free_interrupts(chip);
+ }
+
+ /*
+ * Since this runs from module_init() it cannot use -EPROBE_DEFER,
+ * instead pre-load any modules which are listed as requirements.
+ */
+ for (i = 0; dev_info->modules && dev_info->modules[i]; i++)
+ request_module(dev_info->modules[i]);
+
+ bat_swnode = dev_info->bat_swnode;
+ if (bat_swnode) {
+ ret = software_node_register(bat_swnode);
+ if (ret)
+ return ret;
+ }
+
+ gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
+ for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
+ gpiod_add_lookup_table(gpiod_lookup_tables[i]);
+
+ if (dev_info->init) {
+ ret = dev_info->init();
+ if (ret < 0) {
+ x86_android_tablet_cleanup();
+ return ret;
+ }
+ exit_handler = dev_info->exit;
+ }
+
+ i2c_clients = kcalloc(dev_info->i2c_client_count, sizeof(*i2c_clients), GFP_KERNEL);
+ if (!i2c_clients) {
+ x86_android_tablet_cleanup();
+ return -ENOMEM;
+ }
+
+ i2c_client_count = dev_info->i2c_client_count;
+ for (i = 0; i < i2c_client_count; i++) {
+ ret = x86_instantiate_i2c_client(dev_info, i);
+ if (ret < 0) {
+ x86_android_tablet_cleanup();
+ return ret;
+ }
+ }
+
+ pdevs = kcalloc(dev_info->pdev_count, sizeof(*pdevs), GFP_KERNEL);
+ if (!pdevs) {
+ x86_android_tablet_cleanup();
+ return -ENOMEM;
+ }
+
+ pdev_count = dev_info->pdev_count;
+ for (i = 0; i < pdev_count; i++) {
+ pdevs[i] = platform_device_register_full(&dev_info->pdev_info[i]);
+ if (IS_ERR(pdevs[i])) {
+ x86_android_tablet_cleanup();
+ return PTR_ERR(pdevs[i]);
+ }
+ }
+
+ serdevs = kcalloc(dev_info->serdev_count, sizeof(*serdevs), GFP_KERNEL);
+ if (!serdevs) {
+ x86_android_tablet_cleanup();
+ return -ENOMEM;
+ }
+
+ serdev_count = dev_info->serdev_count;
+ for (i = 0; i < serdev_count; i++) {
+ ret = x86_instantiate_serdev(&dev_info->serdev_info[i], i);
+ if (ret < 0) {
+ x86_android_tablet_cleanup();
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+module_init(x86_android_tablet_init);
+module_exit(x86_android_tablet_cleanup);
+
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_DESCRIPTION("X86 Android tablets DSDT fixups driver");
+MODULE_LICENSE("GPL");
projects / linux.git / commitdiff