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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: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230416212841.311152-4-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2023-04-16 23:28:41 +02:00
parent 1d3f7a31aa
commit e578c943e3
1 changed files with 31 additions and 1 deletions
drivers/platform/x86/x86-android-tablets
lenovo.c

32
drivers/platform/x86/x86-android-tablets/lenovo.c
View File

@ -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;