ALSA: convert PM ops of platform_driver to new pm ops

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 3484411..1128b35 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -1177,10 +1177,9 @@
 }
 
 #ifdef CONFIG_PM
-static int loopback_suspend(struct platform_device *pdev,
-				pm_message_t state)
+static int loopback_suspend(struct device *pdev)
 {
-	struct snd_card *card = platform_get_drvdata(pdev);
+	struct snd_card *card = dev_get_drvdata(pdev);
 	struct loopback *loopback = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
@@ -1190,13 +1189,18 @@
 	return 0;
 }
 	
-static int loopback_resume(struct platform_device *pdev)
+static int loopback_resume(struct device *pdev)
 {
-	struct snd_card *card = platform_get_drvdata(pdev);
+	struct snd_card *card = dev_get_drvdata(pdev);
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 	return 0;
 }
+
+static SIMPLE_DEV_PM_OPS(loopback_pm, loopback_suspend, loopback_resume);
+#define LOOPBACK_PM_OPS	&loopback_pm
+#else
+#define LOOPBACK_PM_OPS	NULL
 #endif
 
 #define SND_LOOPBACK_DRIVER	"snd_aloop"
@@ -1204,13 +1208,10 @@
 static struct platform_driver loopback_driver = {
 	.probe		= loopback_probe,
 	.remove		= __devexit_p(loopback_remove),
-#ifdef CONFIG_PM
-	.suspend	= loopback_suspend,
-	.resume		= loopback_resume,
-#endif
 	.driver		= {
 		.name	= SND_LOOPBACK_DRIVER,
 		.owner	= THIS_MODULE,
+		.pm	= LOOPBACK_PM_OPS,
 	},
 };