ASoC: au1x: dma: replace platform to component

Now platform can be replaced to component, let's do it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/au1x/dma.c

@@ -21,6 +21,8 @@
 
 #include "psc.h"
 
+#define DRV_NAME "au1x_dma"
+
 struct pcm_period {
 	u32 start;
 	u32 relative_end;	/* relative to start of buffer */
@@ -174,7 +176,8 @@ static const struct snd_pcm_hardware alchemy_pcm_hardware = {
 static inline struct alchemy_pcm_ctx *ss_to_ctx(struct snd_pcm_substream *ss)
 {
 	struct snd_soc_pcm_runtime *rtd = ss->private_data;
-	return snd_soc_platform_get_drvdata(rtd->platform);
+	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
+	return snd_soc_component_get_drvdata(component);
 }
 
 static inline struct audio_stream *ss_to_as(struct snd_pcm_substream *ss)
@@ -297,7 +300,8 @@ static int alchemy_pcm_new(struct snd_soc_pcm_runtime *rtd)
 	return 0;
 }
 
-static struct snd_soc_platform_driver alchemy_pcm_soc_platform = {
+static struct snd_soc_component_driver alchemy_pcm_soc_component = {
+	.name		= DRV_NAME,
 	.ops		= &alchemy_pcm_ops,
 	.pcm_new	= alchemy_pcm_new,
 };
@@ -312,8 +316,8 @@ static int alchemy_pcm_drvprobe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, ctx);
 
-	return devm_snd_soc_register_platform(&pdev->dev,
-					      &alchemy_pcm_soc_platform);
+	return devm_snd_soc_register_component(&pdev->dev,
+					&alchemy_pcm_soc_component, NULL, 0);
 }
 
 static struct platform_driver alchemy_pcmdma_driver = {