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ASoC: wm8962: Clear master mode when enter runtime suspend

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The enabled master mode causes power consumption to increase in idle
state. Clear the MSTR bit in runtime supsend and recover it in runtime
resume to reduce power.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250730064054.3006409-1-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shengjiu Wang 2025-07-30 14:40:54 +08:00 committed by Mark Brown
parent eb3bb14528
commit 8d452accd1
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GPG Key ID: 24D68B725D5487D0
1 changed files with 11 additions and 0 deletions
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11
sound/soc/codecs/wm8962.c
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@ -82,6 +82,7 @@ struct wm8962_priv {
#endif
int irq;
bool master_flag;
};
/* We can't use the same notifier block for more than one supply and
@ -2715,6 +2716,7 @@ static int wm8962_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
static int wm8962_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
struct wm8962_priv *wm8962 = snd_soc_component_get_drvdata(component);
int aif0 = 0;
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
@ -2761,9 +2763,11 @@ static int wm8962_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
return -EINVAL;
}
wm8962->master_flag = false;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBP_CFP:
aif0 |= WM8962_MSTR;
wm8962->master_flag = true;
break;
case SND_SOC_DAIFMT_CBC_CFC:
break;
@ -3903,6 +3907,9 @@ static int wm8962_runtime_resume(struct device *dev)
WM8962_BIAS_ENA | WM8962_VMID_SEL_MASK,
WM8962_BIAS_ENA | 0x180);
if (wm8962->master_flag)
regmap_update_bits(wm8962->regmap, WM8962_AUDIO_INTERFACE_0,
WM8962_MSTR, WM8962_MSTR);
msleep(5);
return 0;
@ -3916,6 +3923,10 @@ static int wm8962_runtime_suspend(struct device *dev)
{
struct wm8962_priv *wm8962 = dev_get_drvdata(dev);
if (wm8962->master_flag)
regmap_update_bits(wm8962->regmap, WM8962_AUDIO_INTERFACE_0,
WM8962_MSTR, 0);
regmap_update_bits(wm8962->regmap, WM8962_PWR_MGMT_1,
WM8962_VMID_SEL_MASK | WM8962_BIAS_ENA, 0);