diff options
| author | David Collins <collinsd@codeaurora.org> | 2022-04-24 18:21:58 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-04-24 18:25:15 -0700 |
| commit | be8fc023ef64dcb11042aaa4bb0f29f7e0335d85 (patch) | |
| tree | b277e1e6f94015058c9b595fcecc2c27fdc7dd14 /drivers/input | |
| parent | 0b65118e6ba3024b8d9330cbca9b4c8b439d2057 (diff) | |
| download | linux-be8fc023ef64dcb11042aaa4bb0f29f7e0335d85.tar.bz2 | |
Input: pm8941-pwrkey - simulate missed key press events
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>
Link: https://lore.kernel.org/r/20220422191239.6271-6-quic_amelende@quicinc.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/misc/pm8941-pwrkey.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/input/misc/pm8941-pwrkey.c b/drivers/input/misc/pm8941-pwrkey.c index 4ae6d0f6afa3..549df01b6ee3 100644 --- a/drivers/input/misc/pm8941-pwrkey.c +++ b/drivers/input/misc/pm8941-pwrkey.c @@ -77,6 +77,7 @@ struct pm8941_pwrkey { u32 code; u32 sw_debounce_time_us; ktime_t sw_debounce_end_time; + bool last_status; const struct pm8941_data *data; }; @@ -167,6 +168,16 @@ 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); |