From: Sylwester Nawrocki s.nawrocki@samsung.com

[ Upstream commit f5a2cda4f1db89776b64c4f0f2c2ac609527ac70 ]

When the wm8958_mic_detect, wm8994_mic_detect functions get called from the machine driver, e.g. from the card's late_probe() callback, the CODEC device may be PM runtime suspended and any regmap writes have no effect. Add PM runtime calls to these functions to ensure the device registers are updated as expected. This suppresses an error during boot "wm8994-codec: ASoC: error at snd_soc_component_update_bits on wm8994-codec" caused by the regmap access error due to the cache_only flag being set.

Signed-off-by: Sylwester Nawrocki s.nawrocki@samsung.com Acked-by: Krzysztof Kozlowski krzk@kernel.org Acked-by: Charles Keepax ckeepax@opensource.cirrus.com Link: https://lore.kernel.org/r/20200827173357.31891-2-s.nawrocki@samsung.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/wm8994.c | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 64635f9cdae65..6dbab3fc6537e 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -3372,6 +3372,8 @@ int wm8994_mic_detect(struct snd_soc_component *component, struct snd_soc_jack * return -EINVAL; }

+ pm_runtime_get_sync(component->dev); + switch (micbias) { case 1: micdet = &wm8994->micdet[0]; @@ -3419,6 +3421,8 @@ int wm8994_mic_detect(struct snd_soc_component *component, struct snd_soc_jack *

snd_soc_dapm_sync(dapm);

+ pm_runtime_put(component->dev); + return 0; } EXPORT_SYMBOL_GPL(wm8994_mic_detect); @@ -3786,6 +3790,8 @@ int wm8958_mic_detect(struct snd_soc_component *component, struct snd_soc_jack * return -EINVAL; }

+ pm_runtime_get_sync(component->dev); + if (jack) { snd_soc_dapm_force_enable_pin(dapm, "CLK_SYS"); snd_soc_dapm_sync(dapm); @@ -3854,6 +3860,8 @@ int wm8958_mic_detect(struct snd_soc_component *component, struct snd_soc_jack * snd_soc_dapm_sync(dapm); }

+ pm_runtime_put(component->dev); + return 0; } EXPORT_SYMBOL_GPL(wm8958_mic_detect);