Unverified Commit 8d452acc authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
Browse files

ASoC: wm8962: Clear master mode when enter runtime suspend 



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: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250730064054.3006409-1-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent eb3bb145

sound/soc/codecs/wm8962.c

+11 −0
Original line number Diff line number Diff line
@@ -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);