linux/drivers/hid/i2c-hid
Johnny Chuang 142d5ca797 HID: i2c-hid: Skip ELAN power-on command after reset
commit ca66a6770bd9d6d99e469debd1c7363ac455daf9 upstream.

For ELAN touchscreen, we found our boot code of IC was not flexible enough
to receive and handle this command.
Once the FW main code of our controller is crashed for some reason,
the controller could not be enumerated successfully to be recognized
by the system host. therefore, it lost touch functionality.

Add quirk for skip send power-on command after reset.
It will impact to ELAN touchscreen and touchpad on HID over I2C projects.

Fixes: 43b7029f47 ("HID: i2c-hid: Send power-on command after reset").

Cc: stable@vger.kernel.org
Signed-off-by: Johnny Chuang <johnny.chuang.emc@gmail.com>
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-10 13:37:10 +02:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
i2c-hid-core.c HID: i2c-hid: Skip ELAN power-on command after reset 2021-06-10 13:37:10 +02:00
i2c-hid-dmi-quirks.c HID: i2c-hid: add Vero K147 to descriptor override 2020-12-30 11:51:00 +01:00
i2c-hid.h HID: i2c-hid: override HID descriptors for certain devices 2018-09-29 21:25:59 +02:00