Re: [PATCH v3 3/4] input: misc: pm8941-pwrkey: add software key press debouncing support

From: Stephen Boyd
Date: Thu Feb 03 2022 - 16:20:49 EST


Quoting Anjelique Melendez (2022-02-02 17:08:07)
> From: David Collins <collinsd@xxxxxxxxxxxxxx>
>
> On certain PMICs, an unexpected assertion of KPDPWR_DEB (the
> positive logic hardware debounced power key signal) may be seen
> during the falling edge of KPDPWR_N (i.e. a power key press) when
> it occurs close to the rising edge of SLEEP_CLK. This then
> triggers a spurious KPDPWR interrupt.
>
> Handle this issue by adding software debouncing support to ignore
> key events that occur within the hardware debounce delay after the
> most recent key release event.
>
> Signed-off-by: David Collins <collinsd@xxxxxxxxxxxxxx>
> Signed-off-by: Anjelique Melendez <quic_amelende@xxxxxxxxxxx>
> ---

Is there a Fixes tag that should be here? Is it a new problem with newer
PMICs?