On Wed, May 18, 2022 at 10:49:01PM +0200, Marek Vasut wrote:
> According to Ilitek "231x & ILI251x Programming Guide" Version: 2.30
> "2.1. Power Sequence", "T4 Chip Reset and discharge time" is minimum
> 10ms and "T2 Chip initial time" is maximum 150ms. Adjust the reset
> timings such that T4 is 12ms and T2 is 160ms to fit those figures.
>
> This prevents sporadic touch controller start up failures when some
> systems with at least ILI251x controller boot, without this patch
> the systems sometimes fail to communicate with the touch controller.
>
> Fixes: 201f3c803544c ("Input: ili210x - add reset GPIO support")
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Applied, thank you.
--
Dmitry
