diff options
| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2022-01-21 12:04:12 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-01-24 13:31:35 +0000 |
| commit | f8593e88540052b3feaf1fb36f2c1c0484c9dc14 (patch) | |
| tree | 5c4309ed1f7ddb6e43576c5b126b69e9899fc360 /sound/soc/codecs/cs42l42.h | |
| parent | 5982b5a8ec7ddb076e774bdd0b17d74681ab0943 (diff) | |
| download | linux-f8593e88540052b3feaf1fb36f2c1c0484c9dc14.tar.bz2 | |
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 <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220121120412.672284-4-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs42l42.h')
| -rw-r--r-- | sound/soc/codecs/cs42l42.h | 5 |
1 files changed, 5 insertions, 0 deletions
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__ */ |