Commit e578c943 authored by Hans de Goede's avatar Hans de Goede
Browse files

platform/x86: x86-android-tablets: Add accelerometer support for Yoga Tablet 2 1050/830 series 



The Yoga Tablet 2 1050/830 series have a LSM303DA accelerometer +
magnetometer (IMU), add this to the list of i2c_clients to
instantiate on these models.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230416212841.311152-4-hdegoede@redhat.com
parent 1d3f7a31

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

+31 −1
Original line number Diff line number Diff line
@@ -255,8 +255,19 @@ static struct x86_gpio_button lenovo_yoga_tab2_830_1050_lid = { 
/* This gets filled by lenovo_yoga_tab2_830_1050_init() */

static struct rmi_device_platform_data lenovo_yoga_tab2_830_1050_rmi_pdata = { };



static const struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __initconst = {

static struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __initdata = {

	{

		/*

		 * This must be the first entry because lenovo_yoga_tab2_830_1050_init()

		 * may update its swnode. LSM303DA accelerometer + magnetometer.

		 */

		.board_info = {

			.type = "lsm303d",

			.addr = 0x1d,

			.dev_name = "lsm303d",

		},

		.adapter_path = "\\_SB_.I2C5",

	}, {

		/* bq24292i battery charger */

		.board_info = {

			.type = "bq24190",
@@ -357,7 +368,24 @@ const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = { 
 * The Lenovo Yoga Tablet 2 830 and 1050 (8" vs 10") versions use the same

 * mainboard, but the 830 uses a portrait LCD panel with a landscape touchscreen,

 * requiring the touchscreen driver to adjust the touch-coords to match the LCD.

 * And requiring the accelerometer to have a mount-matrix set to correct for

 * the 90° rotation of the LCD vs the frame.

 */

static const char * const lenovo_yoga_tab2_830_lms303d_mount_matrix[] = {

	"0", "1", "0",

	"-1", "0", "0",

	"0", "0", "1"

};



static const struct property_entry lenovo_yoga_tab2_830_lms303d_props[] = {

	PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", lenovo_yoga_tab2_830_lms303d_mount_matrix),

	{ }

};



static const struct software_node lenovo_yoga_tab2_830_lms303d_node = {

	.properties = lenovo_yoga_tab2_830_lms303d_props,

};



static int __init lenovo_yoga_tab2_830_1050_init_touchscreen(void)

{

	struct gpio_desc *gpiod;
@@ -375,6 +403,8 @@ static int __init lenovo_yoga_tab2_830_1050_init_touchscreen(void) 
		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_i2c_clients[0].board_info.swnode =

			&lenovo_yoga_tab2_830_lms303d_node;

	}



	return 0;