ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions

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>

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index b3ba0536736e2643f7ea3f2932d66af3cd905740..fc9ea198ac799047720178693b48ffae8a4d2315 100644 (file)
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -3514,6 +3514,8 @@ 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];
@@ -3561,6 +3563,8 @@ 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);
@@ -3932,6 +3936,8 @@ 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);
@@ -4000,6 +4006,8 @@ 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);