Re: [PATCH v2] HID: i2c-hid: wait for i2c touchpad deep-sleep to power-up transition

[Kai-Heng Feng]

Hi Łukasz,

On Thu, Apr 11, 2024 at 10:23 PM Łukasz Majczak <lma@xxxxxxxxxxxx> wrote:
>
> > Sure, but what about other transactions that are initiated by the host
> > (e.g. SET_POWER)?
> >
> Somehow it is problematic only on reboot and works just fine on
> suspend/resume and
> set_power.
> I will dig more and try to find out what the difference is.

If cold boot doesn't have such issue, maybe I2C_HID_PWR_SLEEP
shouldn't be used by reboot?

Kai-Heng

>
> > Perhaps this hack at probe is enough for your use case, but is an
> > incomplete hack and at a minimum you'd need to add a comment explaining
> > why it is there.
> >
> You mean a comment in the code ?
>
> Lukasz