HID: add Lenovo Yoga C630 battery quirk

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@kali.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ceaa36f..cb2b48d 100644 (file)
--- 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

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 125043a..f197aed 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -335,6 +335,8 @@ static const struct hid_device_id hid_battery_quirks[] = {
          HID_BATTERY_QUIRK_IGNORE },
        { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN),
          HID_BATTERY_QUIRK_IGNORE },
+       { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_LENOVO_YOGA_C630_TOUCHSCREEN),
+         HID_BATTERY_QUIRK_IGNORE },
        {}
 };