Re: [PATCH 4/7] Input: cyttsp - Reduce reset pulse timings

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On Tue, Mar 30, 2021 at 10:54 AM Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
>
> The data sheet for CY8CTMA340 specifies that the reset pulse
> shall be at least 1 ms. Specify 1-2 ms with usleep_range()
> to cut some slack for the scheduler.
>
> Curiously the datasheet does not specify how long we have to
> wait after a hard reset until the chip is up, but I have found
> a vendor tree (Samsung GT-S7710) that has code for this touch
> screen and there this is set to 5 ms so I use this with
> the same 1 ms fuzz.
>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---

Makes sense.

Reviewed-by: Javier Martinez Canillas <javier@xxxxxxxxxxxx>



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