ASoC: stm32: spdifrx: add pm_runtime support

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

Signed-off-by: Olivier Moysan <[email protected]>
Change-Id: I70e673cf9f6aeeed040b4ec829ee281e6dff12d6
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/195608
Reviewed-by: CITOOLS <[email protected]>
Reviewed-by: CIBUILD <[email protected]>
Reviewed-by: Arnaud POULIQUEN <[email protected]>

Author: Olivier Moysan

sound/soc/stm/stm32_spdifrx.c

@@ -12,6 +12,7 @@
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>
 
@@ -955,6 +956,7 @@ static int stm32_spdifrx_remove(struct platform_device *pdev)
 
 	snd_dmaengine_pcm_unregister(&pdev->dev);
 	snd_soc_unregister_component(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 
 	return 0;
 }
@@ -1045,6 +1047,8 @@ static int stm32_spdifrx_probe(struct platform_device *pdev)
 			FIELD_GET(SPDIFRX_VERR_MIN_MASK, ver));
 	}
 
+	pm_runtime_enable(&pdev->dev);
+
 	return ret;
 
 error: