ASoC: stm32: dfsdm: add pm_runtime support for audio

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

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/20211119104752.13564-3-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index e6078f50e508e05210c223f0e2d1cfcfe4227e8d..6ee714542b84a1a9643cfa476db5583927fe337e 100644 (file)
--- 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;
 }