[PATCH v2 2/3] ASoC: stm32: dfsdm: add pm_runtime support for audio

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Enable support of pm_runtime on STM32 DFSDM audio driver
to allow power state monitoring.

Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxxxxxxx>
---
 sound/soc/stm/stm32_adfsdm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index e6078f50e508..6ee714542b84 100644
--- a/sound/soc/stm/stm32_adfsdm.c
+++ b/sound/soc/stm/stm32_adfsdm.c
@@ -12,7 +12,7 @@
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
-
+#include <linux/pm_runtime.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/consumer.h>
 #include <linux/iio/adc/stm32-dfsdm-adc.h>
@@ -334,6 +334,8 @@ static int stm32_adfsdm_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(&pdev->dev, priv);
 
+	pm_runtime_enable(&pdev->dev);
+
 	ret = devm_snd_soc_register_component(&pdev->dev,
 					      &stm32_adfsdm_dai_component,
 					      &priv->dai_drv, 1);
@@ -373,6 +375,7 @@ static int stm32_adfsdm_probe(struct platform_device *pdev)
 static int stm32_adfsdm_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_component(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 
 	return 0;
 }
-- 
2.17.1




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