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    Subject[PATCH AUTOSEL 6.1 08/24] HID: Ignore battery for Elan touchscreen on Asus TP420IA
    Date
    From: "marco.rodolfi@tuta.io" <marco.rodolfi@tuta.io>

    [ Upstream commit cb963b2c011a62838852c902eccb3f72e5d3dbb6 ]

    This device has a touchscreen thats report a battery even if it doesn't
    have one.
    Ask Linux to ignore the battery so it will not always report it as low.

    [jkosina@suse.cz: fix whitespace damage]
    Signed-off-by: Marco Rodolfi <marco.rodolfi@tuta.io>
    Signed-off-by: Jiri Kosina <jkosina@suse.cz>
    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 d01d798ebedca..46c0ce4203c08 100644
    --- a/drivers/hid/hid-ids.h
    +++ b/drivers/hid/hid-ids.h
    @@ -413,6 +413,7 @@
    #define I2C_DEVICE_ID_HP_ENVY_X360_15T_DR100 0x29CF
    #define I2C_DEVICE_ID_HP_ENVY_X360_EU0009NV 0x2CF9
    #define I2C_DEVICE_ID_HP_SPECTRE_X360_15 0x2817
    +#define I2C_DEVICE_ID_ASUS_TP420IA_TOUCHSCREEN 0x2BC8
    #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 3ee5a9fea20e6..3736b0afbff73 100644
    --- a/drivers/hid/hid-input.c
    +++ b/drivers/hid/hid-input.c
    @@ -370,6 +370,8 @@ static const struct hid_device_id hid_battery_quirks[] = {
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
    USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD),
    HID_BATTERY_QUIRK_IGNORE },
    + { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_ASUS_TP420IA_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),
    --
    2.39.0
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