From: Richard Fitzgerald rf@opensource.cirrus.com

[ Upstream commit 8d06f797f844d04a961f201f886f7f9985edc9bf ]

When a plug event is detect report the full state of all status bits, don't assume that there will have been a previous unplug event to clear all the bits. Report the state of both HEADPHONE and MICROPHONE bits according to detected type, and clear all the button status bits. The current button status is already checked and reported at the end of the function.

During a system suspend the jack could be unplugged and plugged, possibly changing the jack type. On resume the interrupt status will indicate a plug event - there will not be an unplug event to clear the bits.

Signed-off-by: Richard Fitzgerald rf@opensource.cirrus.com Link: https://lore.kernel.org/r/20220121120412.672284-2-rf@opensource.cirrus.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/cs42l42.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 43d98bdb5b5b..2c294868008e 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -1637,7 +1637,11 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data)

mutex_lock(&cs42l42->jack_detect_mutex);

- /* Check auto-detect status */ + /* + * Check auto-detect status. Don't assume a previous unplug event has + * cleared the flags. If the jack is unplugged and plugged during + * system suspend there won't have been an unplug event. + */ if ((~masks[5]) & irq_params_table[5].mask) { if (stickies[5] & CS42L42_HSDET_AUTO_DONE_MASK) { cs42l42_process_hs_type_detect(cs42l42); @@ -1645,11 +1649,15 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) case CS42L42_PLUG_CTIA: case CS42L42_PLUG_OMTP: snd_soc_jack_report(cs42l42->jack, SND_JACK_HEADSET, - SND_JACK_HEADSET); + SND_JACK_HEADSET | + SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3); break; case CS42L42_PLUG_HEADPHONE: snd_soc_jack_report(cs42l42->jack, SND_JACK_HEADPHONE, - SND_JACK_HEADPHONE); + SND_JACK_HEADSET | + SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3); break; default: break;