From f8593e88540052b3feaf1fb36f2c1c0484c9dc14 Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Fri, 21 Jan 2022 12:04:12 +0000 Subject: ASoC: cs42l42: Handle system suspend Add system suspend functions to handle clean power-down on suspend and restoring registers on resume. The jack state could change during suspend. Plug->unplug and unplug->plug are straightforward because this looks no different from any other plug state change - there will be a plugged or unplugged interrupt pending. The jack could be unplugged and a different type of jack plugged, and on resume the plug state would not have changed. Setting plug_state back to TS_TRANS (transitioning) will make the next plug interrupt after resume run a type detection. During system suspend any jack plug/unplug and button events will not be reported or generate a system wakeup. If the plug state or headset type has changed it will be reported after resume. Signed-off-by: Richard Fitzgerald Link: https://lore.kernel.org/r/20220121120412.672284-4-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- sound/soc/codecs/cs42l42.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'sound/soc/codecs/cs42l42.h') diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index 53d96287abba..244b24d1f5e9 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -826,6 +826,10 @@ #define CS42L42_PLL_LOCK_POLL_US 250 #define CS42L42_PLL_LOCK_TIMEOUT_US 1250 #define CS42L42_HP_ADC_EN_TIME_US 20000 +#define CS42L42_PDN_DONE_POLL_US 1000 +#define CS42L42_PDN_DONE_TIMEOUT_US 200000 +#define CS42L42_PDN_DONE_TIME_MS 100 +#define CS42L42_FILT_DISCHARGE_TIME_MS 46 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = { "VA", @@ -860,6 +864,7 @@ struct cs42l42_private { u8 hs_bias_sense_en; u8 stream_use; bool hp_adc_up_pending; + bool suspended; }; #endif /* __CS42L42_H__ */ -- cgit v1.2.3