| Message ID | 20220422191239.6271-6-quic_amelende@quicinc.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | Extend pm8941-pwrkey driver | expand |
On Fri, Apr 22, 2022 at 12:12:43PM -0700, Anjelique Melendez wrote: > From: David Collins <collinsd@codeaurora.org> > > The status of the keys connected to the KPDPWR_N and RESIN_N pins > is identified by reading corresponding bits in the interrupt real > time status register. If the status has changed by the time that > the interrupt is handled then a press event will be missed. > > Maintain a last known status variable to find unbalanced release > events and simulate press events for each accordingly. > > Signed-off-by: David Collins <collinsd@codeaurora.org> > Signed-off-by: Anjelique Melendez <quic_amelende@quicinc.com> Applied, thank you.
diff --git a/drivers/input/misc/pm8941-pwrkey.c b/drivers/input/misc/pm8941-pwrkey.c index 881943ab4d55..3519152759dd 100644 --- a/drivers/input/misc/pm8941-pwrkey.c +++ b/drivers/input/misc/pm8941-pwrkey.c @@ -76,6 +76,7 @@ struct pm8941_pwrkey { u32 code; u32 sw_debounce_time_us; ktime_t sw_debounce_end_time; + bool last_status; const struct pm8941_data *data; }; @@ -162,6 +163,16 @@ static irqreturn_t pm8941_pwrkey_irq(int irq, void *_data) pwrkey->sw_debounce_end_time = ktime_add_us(ktime_get(), pwrkey->sw_debounce_time_us); + /* + * Simulate a press event in case a release event occurred without a + * corresponding press event. + */ + if (!pwrkey->last_status && !sts) { + input_report_key(pwrkey->input, pwrkey->code, 1); + input_sync(pwrkey->input); + } + pwrkey->last_status = sts; + input_report_key(pwrkey->input, pwrkey->code, sts); input_sync(pwrkey->input);