ASoC: davinci-i2s: 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/davinci/davinci-i2s.c

@@ -34,6 +34,7 @@
 #include "edma-pcm.h"
 #include "davinci-i2s.h"
 
+#define DRV_NAME "davinci-i2s"
 
 /*
  * NOTE:  terminology here is confusing.
@@ -190,7 +191,7 @@ static void davinci_mcbsp_start(struct davinci_mcbsp_dev *dev,
 		struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_platform *platform = rtd->platform;
+	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 	int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
 	u32 spcr;
 	u32 mask = playback ? DAVINCI_MCBSP_SPCR_XRST : DAVINCI_MCBSP_SPCR_RRST;
@@ -211,8 +212,8 @@ static void davinci_mcbsp_start(struct davinci_mcbsp_dev *dev,
 	if (playback) {
 		/* Stop the DMA to avoid data loss */
 		/* while the transmitter is out of reset to handle XSYNCERR */
-		if (platform->driver->ops->trigger) {
-			int ret = platform->driver->ops->trigger(substream,
+		if (component->driver->ops->trigger) {
+			int ret = component->driver->ops->trigger(substream,
 				SNDRV_PCM_TRIGGER_STOP);
 			if (ret < 0)
 				printk(KERN_DEBUG "Playback DMA stop failed\n");
@@ -233,8 +234,8 @@ static void davinci_mcbsp_start(struct davinci_mcbsp_dev *dev,
 		toggle_clock(dev, playback);
 
 		/* Restart the DMA */
-		if (platform->driver->ops->trigger) {
-			int ret = platform->driver->ops->trigger(substream,
+		if (component->driver->ops->trigger) {
+			int ret = component->driver->ops->trigger(substream,
 				SNDRV_PCM_TRIGGER_START);
 			if (ret < 0)
 				printk(KERN_DEBUG "Playback DMA start failed\n");
@@ -651,7 +652,7 @@ static struct snd_soc_dai_driver davinci_i2s_dai = {
 };
 
 static const struct snd_soc_component_driver davinci_i2s_component = {
-	.name		= "davinci-i2s",
+	.name		= DRV_NAME,
 };
 
 static int davinci_i2s_probe(struct platform_device *pdev)