[PATCH] HID: Ignore battery for ELAN touchscreens 2F2C and 4116 on ASUS Zenbook 14 OLED (2023) and ASUS Zenbook Pro 14 OLED (2023)

The touchscreen reports a battery status of 0% and jumps to 1% when a
stylus is used.
The device ID was added and the battery ignore quirk was enabled for it.

Signed-off-by: Louis Dalibard <redacted>
---
  drivers/hid/hid-ids.h   | 2 ++
  drivers/hid/hid-input.c | 4 ++++
  2 files changed, 6 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 61d2a21affa2..72d56ee7ce1b 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h

@@ -423,6 +423,8 @@

  #define I2C_DEVICE_ID_HP_SPECTRE_X360_13_AW0020NG  0x29DF
  #define I2C_DEVICE_ID_ASUS_TP420IA_TOUCHSCREEN 0x2BC8
  #define I2C_DEVICE_ID_ASUS_GV301RA_TOUCHSCREEN 0x2C82
+#define I2C_DEVICE_ID_ASUS_UX3402_TOUCHSCREEN 0x2F2C
+#define I2C_DEVICE_ID_ASUS_UX6404_TOUCHSCREEN 0x4116
  #define USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN 0x2544
  #define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706
  #define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index e03d300d2bac..0d21590e2d2c 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c

@@ -377,6 +377,10 @@ static const struct hid_device_id

hid_battery_quirks[] = {
    HID_BATTERY_QUIRK_IGNORE },
   { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN,
I2C_DEVICE_ID_ASUS_GV301RA_TOUCHSCREEN),
    HID_BATTERY_QUIRK_IGNORE },
+ { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_ASUS_UX3402_TOUCHSCREEN),
+  HID_BATTERY_QUIRK_IGNORE },
+ { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_ASUS_UX6404_TOUCHSCREEN),
+  HID_BATTERY_QUIRK_IGNORE },
   { HID_USB_DEVICE(USB_VENDOR_ID_ELAN,
USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN),
    HID_BATTERY_QUIRK_IGNORE },
   { HID_USB_DEVICE(USB_VENDOR_ID_ELAN,
USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN),
-- 
2.45.1

On Tue, 4 Jun 2024, Louis Dalibard wrote:

The touchscreen reports a battery status of 0% and jumps to 1% when a
stylus is used.
The device ID was added and the battery ignore quirk was enabled for it.

Signed-off-by: Louis Dalibard <redacted>

Unfortunately, it's still whitespace-damaged. See

	Documentation/process/email-clients.rst

for some hints on how to fix that up, please.

Thanks,

-- 
Jiri Kosina
SUSE Labs