Hi,

On Mon, Apr 12, 2021 at 6:20 PM Johnny Chuang
[off-list ref] wrote:

quoted

Fixes: 43b7029f475e ("HID: i2c-hid: Send power-on command after reset").

Note that the "Fixes" tag actually belongs down at the end. It also shouldn't
have a "." at the end. Presumably the maintainer can adjust this when landing?

Hi Dmitry,
Could you help to review this patch and give an advice?

quoted

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.

Signed-off-by: Johnny Chuang <redacted>

This patch looks fine to me, thus:

Reviewed-by: Douglas Anderson <dianders@chromium.org>

I can confirm that after applying this patch I can recovery my borked
touchscreen (which got borked by a failed firmware update ages ago):

Tested-by: Douglas Anderson <dianders@chromium.org>