diff options
| author | Shuming Fan <shumingf@realtek.com> | 2021-07-27 11:48:46 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-07-27 15:14:52 +0300 |
| commit | 89d751d8f9dcfb69d1153070d5e5a86d36ac1b45 (patch) | |
| tree | d76e1f234a369b4e2b25e26da8f548d1dd55abba /sound/soc/codecs | |
| parent | bc1c8e4eee79646b9ae10ededed06a569c7c2bc9 (diff) | |
| download | linux-89d751d8f9dcfb69d1153070d5e5a86d36ac1b45.tar.xz | |
ASoC: rt5682: enable SAR ADC power saving mode during suspend
The SAR ADC power saving mode could reduce power consumption on MICVDD rail.
Therefore, this patch saves power consumption during suspend state if the headset was connected.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20210727084846.9867-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/rt5682.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index e4c91571abae..f50c0c8133d4 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -2911,10 +2911,46 @@ static void rt5682_remove(struct snd_soc_component *component) static int rt5682_suspend(struct snd_soc_component *component) { struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component); + unsigned int val; if (rt5682->is_sdw) return 0; + cancel_delayed_work_sync(&rt5682->jack_detect_work); + cancel_delayed_work_sync(&rt5682->jd_check_work); + if (rt5682->hs_jack && rt5682->jack_type == SND_JACK_HEADSET) { + snd_soc_component_update_bits(component, RT5682_CBJ_CTRL_1, + RT5682_MB1_PATH_MASK | RT5682_MB2_PATH_MASK, + RT5682_CTRL_MB1_REG | RT5682_CTRL_MB2_REG); + val = snd_soc_component_read(component, + RT5682_CBJ_CTRL_2) & RT5682_JACK_TYPE_MASK; + + switch (val) { + case 0x1: + snd_soc_component_update_bits(component, RT5682_SAR_IL_CMD_1, + RT5682_SAR_SEL_MB1_MASK | RT5682_SAR_SEL_MB2_MASK, + RT5682_SAR_SEL_MB1_NOSEL | RT5682_SAR_SEL_MB2_SEL); + break; + case 0x2: + snd_soc_component_update_bits(component, RT5682_SAR_IL_CMD_1, + RT5682_SAR_SEL_MB1_MASK | RT5682_SAR_SEL_MB2_MASK, + RT5682_SAR_SEL_MB1_SEL | RT5682_SAR_SEL_MB2_NOSEL); + break; + default: + break; + } + + snd_soc_component_update_bits(component, RT5682_PWR_ANLG_3, + RT5682_PWR_CBJ, 0); + + /* enter SAR ADC power saving mode */ + snd_soc_component_update_bits(component, RT5682_SAR_IL_CMD_1, + RT5682_SAR_BUTT_DET_MASK | RT5682_SAR_BUTDET_MODE_MASK | RT5682_SAR_BUTDET_RST_MASK, 0); + snd_soc_component_update_bits(component, RT5682_SAR_IL_CMD_1, + RT5682_SAR_BUTT_DET_MASK | RT5682_SAR_BUTDET_MODE_MASK | RT5682_SAR_BUTDET_RST_MASK, + RT5682_SAR_BUTT_DET_EN | RT5682_SAR_BUTDET_POW_SAV | RT5682_SAR_BUTDET_RST_NORMAL); + } + regcache_cache_only(rt5682->regmap, true); regcache_mark_dirty(rt5682->regmap); return 0; @@ -2930,6 +2966,14 @@ static int rt5682_resume(struct snd_soc_component *component) regcache_cache_only(rt5682->regmap, false); regcache_sync(rt5682->regmap); + if (rt5682->hs_jack && rt5682->jack_type == SND_JACK_HEADSET) { + snd_soc_component_update_bits(component, RT5682_CBJ_CTRL_1, + RT5682_MB1_PATH_MASK | RT5682_MB2_PATH_MASK, + RT5682_CTRL_MB1_FSM | RT5682_CTRL_MB2_FSM); + snd_soc_component_update_bits(component, RT5682_PWR_ANLG_3, + RT5682_PWR_CBJ, RT5682_PWR_CBJ); + } + mod_delayed_work(system_power_efficient_wq, &rt5682->jack_detect_work, msecs_to_jiffies(250)); |