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platform/x86: x86-android-tablets: Add Advantech MICA-071 extra button

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The Advantech MICA-071 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.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20221127221928.123660-1-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2022-11-27 23:19:28 +01:00
parent b6c14ff1de
commit b03ae77e7e
1 changed files with 58 additions and 0 deletions
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58
drivers/platform/x86/x86-android-tablets.c
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@ -265,6 +265,56 @@ static struct gpiod_lookup_table int3496_gpo2_pin22_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,
@ -1385,6 +1435,14 @@ static const struct x86_dev_info xiaomi_mipad2_info __initconst = {
};
static const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
{
/* 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 = {