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ASoC: Take a pm_runtime reference on DAPM devices that are enabled
As for PCMs take a runtime power management reference to devices that are in a non-off bias, avoiding the need to do this in individual drivers. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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1 changed files with 7 additions and 0 deletions
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@ -39,6 +39,7 @@
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#include <linux/platform_device.h>
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#include <linux/jiffies.h>
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#include <linux/debugfs.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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@ -1206,6 +1207,9 @@ static void dapm_pre_sequence_async(void *data, async_cookie_t cookie)
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/* If we're off and we're not supposed to be go into STANDBY */
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if (d->bias_level == SND_SOC_BIAS_OFF &&
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d->target_bias_level != SND_SOC_BIAS_OFF) {
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if (d->dev)
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pm_runtime_get_sync(d->dev);
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ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY);
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if (ret != 0)
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dev_err(d->dev,
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@ -1245,6 +1249,9 @@ static void dapm_post_sequence_async(void *data, async_cookie_t cookie)
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ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF);
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if (ret != 0)
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dev_err(d->dev, "Failed to turn off bias: %d\n", ret);
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if (d->dev)
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pm_runtime_put_sync(d->dev);
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}
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/* If we just powered up then move to active bias */
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