From 8d452accd1380e1cb0b15a9876bcd19b14c5fabb Mon Sep 17 00:00:00 2001 From: Shengjiu Wang Date: Wed, 30 Jul 2025 14:40:54 +0800 Subject: [PATCH] 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: Shengjiu Wang Reviewed-by: Charles Keepax Link: https://patch.msgid.link/20250730064054.3006409-1-shengjiu.wang@nxp.com Signed-off-by: Mark Brown --- sound/soc/codecs/wm8962.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index d69aa8b15629a..27b4326429a0e 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -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); -- 2.51.0