Commit 902ce18a authored by Hans de Goede's avatar Hans de Goede
Browse files

platform/x86: x86-android-tablets: Add Medion Lifetab S10346 data 



The Medion Lifetab S10346 is a x86 ACPI tablet which ships with Android
x86 as factory OS. Its DSDT contains a bunch of I2C devices which are not
actually there, causing various resource conflicts. Enumeration of these
is skipped through the acpi_quirk_skip_i2c_client_enumeration().

Add support for manually instantiating the I2C devices which are
actually present on this tablet by adding the necessary device info to
the x86-android-tablets module.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20221208110224.107354-1-hdegoede@redhat.com
parent 6f70a53a

drivers/platform/x86/x86-android-tablets.c

+92 −0
Original line number Diff line number Diff line
@@ -987,6 +987,88 @@ static void lenovo_yoga_tab2_830_1050_exit(void) 
	}

}



/* 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",
@@ -1245,6 +1327,16 @@ static const struct dmi_system_id x86_android_tablet_ids[] __initconst = { 
		},

		.driver_data = (void *)&lenovo_yoga_tab2_830_1050_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 = {