From: Steev Klimaszewski <steev@xxxxxxxx>
commit 3a47fa7b14c7d9613909a844aba27f99d3c58634 upstream.
Similar to the Surface Go devices, the Elantech touchscreen/digitizer in
the Lenovo Yoga C630 mistakenly reports the battery of the stylus, and
always reports an empty battery.
Apply the HID_BATTERY_QUIRK_IGNORE quirk to ignore this battery and
prevent the erroneous low battery warnings.
Signed-off-by: Steev Klimaszewski <steev@xxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-input.c | 2 ++
2 files changed, 3 insertions(+)
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -399,6 +399,7 @@
#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 I2C_DEVICE_ID_LENOVO_YOGA_C630_TOUCHSCREEN 0x279F
#define USB_VENDOR_ID_ELECOM 0x056e
#define USB_DEVICE_ID_ELECOM_BM084 0x0061
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -335,6 +335,8 @@ static const struct hid_device_id hid_ba
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
+ { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_LENOVO_YOGA_C630_TOUCHSCREEN),
+ HID_BATTERY_QUIRK_IGNORE },
{}
};
