ALSA: aoa-soundbus: Switch to dev_pm_ops

Update the aoa-soundbus framework to use dev_pm_ops rather than the
deprecated legacy suspend and resume callbacks.

Since there isn't anything special to do at the bus level the bus driver
does not have to implement any callbacks. The device driver core will
automatically pick up and execute the device's PM ops.

As there is only a single aoa-soundbus driver implementing suspend and
resume, update both the core and driver at the same time to avoid
unnecessary code churn.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/aoa/fabrics/layout.c

@@ -1120,10 +1120,10 @@ static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int aoa_fabric_layout_suspend(struct device *dev)
 {
-	struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
+	struct layout_dev *ldev = dev_get_drvdata(dev);
 
 	if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
 		ldev->gpio.methods->all_amps_off(&ldev->gpio);
@@ -1131,15 +1131,19 @@ static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t sta
 	return 0;
 }
 
-static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
+static int aoa_fabric_layout_resume(struct device *dev)
 {
-	struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
+	struct layout_dev *ldev = dev_get_drvdata(dev);
 
 	if (ldev->gpio.methods && ldev->gpio.methods->all_amps_restore)
 		ldev->gpio.methods->all_amps_restore(&ldev->gpio);
 
 	return 0;
 }
+
+static SIMPLE_DEV_PM_OPS(aoa_fabric_layout_pm_ops,
+	aoa_fabric_layout_suspend, aoa_fabric_layout_resume);
+
 #endif
 
 static struct soundbus_driver aoa_soundbus_driver = {
@@ -1147,12 +1151,11 @@ static struct soundbus_driver aoa_soundbus_driver = {
 	.owner = THIS_MODULE,
 	.probe = aoa_fabric_layout_probe,
 	.remove = aoa_fabric_layout_remove,
-#ifdef CONFIG_PM
-	.suspend = aoa_fabric_layout_suspend,
-	.resume = aoa_fabric_layout_resume,
-#endif
 	.driver = {
 		.owner = THIS_MODULE,
+#ifdef CONFIG_PM_SLEEP
+		.pm = &aoa_fabric_layout_pm_ops,
+#endif
 	}
 };