From: Hans de Goede hdegoede@redhat.com
[ Upstream commit b03ae77e7e057f4b3b858f10c840557e71448a91 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/x86-android-tablets.c | 58 ++++++++++++++++++++++ 1 file changed, 58 insertions(+)
diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c index bbfae1395e18..123a4618db55 100644 --- a/drivers/platform/x86/x86-android-tablets.c +++ b/drivers/platform/x86/x86-android-tablets.c @@ -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 = {