From 109f0544a518d504ee12b855c192a9a4d55f6b55 Mon Sep 17 00:00:00 2001 From: Maximilian Luz Date: Thu, 26 May 2022 01:08:27 +0200 Subject: [PATCH] HID: hid-input: add Surface Go battery quirk commit db925d809011c37b246434fdce71209fc2e6c0c2 upstream. Similar to the Surface Go (1), the (Elantech) touchscreen/digitizer in the Surface Go 2 mistakenly reports the battery of the stylus. Instead of over the touchscreen device, battery information is provided via bluetooth and the touchscreen device reports an empty battery. Apply the HID_BATTERY_QUIRK_IGNORE quirk to ignore this battery and prevent the erroneous low battery warnings. Cc: stable@vger.kernel.org Signed-off-by: Maximilian Luz Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-input.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 42b5b050b72d1..ceaa36fc429ef 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -398,6 +398,7 @@ #define USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN 0x2544 #define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706 #define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A +#define I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN 0x2A1C #define USB_VENDOR_ID_ELECOM 0x056e #define USB_DEVICE_ID_ELECOM_BM084 0x0061 diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 3172987a9ebd3..125043a28a35c 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -333,6 +333,8 @@ static const struct hid_device_id hid_battery_quirks[] = { HID_BATTERY_QUIRK_IGNORE }, { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN), HID_BATTERY_QUIRK_IGNORE }, + { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN), + HID_BATTERY_QUIRK_IGNORE }, {} }; -- 2.30.2