[PATCH 5.13 234/800] HID: hid-input: add Surface Go battery quirk
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-12 08:25:19
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
From: Zoltan Tamas Vajda <redacted> [ Upstream commit b5539722eb832441f309642fe5102cc3536f92b8 ] The Elantech touchscreen/digitizer in the Surface Go mistakenly reports having a battery. This results in a low battery message every time you try to use the pen. This patch adds a quirk to ignore the non-existent battery and gets rid of the false low battery messages. Signed-off-by: Zoltan Tamas Vajda <redacted> Signed-off-by: Jiri Kosina <redacted> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 b84a0a11e05b..63ca5959dc67 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h@@ -396,6 +396,7 @@ #define USB_DEVICE_ID_HP_X2_10_COVER 0x0755 #define I2C_DEVICE_ID_HP_SPECTRE_X360_15 0x2817 #define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706 +#define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A #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 abbfa91e73e4..68c8644234a4 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c@@ -326,6 +326,8 @@ static const struct hid_device_id hid_battery_quirks[] = { HID_BATTERY_QUIRK_IGNORE }, { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15), HID_BATTERY_QUIRK_IGNORE }, + { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN), + HID_BATTERY_QUIRK_IGNORE }, {} };
--
2.30.2