ASoC: ux500: use asoc_substream_to_rtd()

Now we can use asoc_substream_to_rtd() macro,
let's use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v9ij0yv9.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/ux500/mop500_ab8500.c

@@ -190,7 +190,7 @@ static struct snd_kcontrol_new mop500_ab8500_ctrls[] = {
 
 static int mop500_ab8500_startup(struct snd_pcm_substream *substream)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 
 	/* Set audio-clock source */
 	return mop500_ab8500_set_mclk(rtd->card->dev,
@@ -199,7 +199,7 @@ static int mop500_ab8500_startup(struct snd_pcm_substream *substream)
 
 static void mop500_ab8500_shutdown(struct snd_pcm_substream *substream)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct device *dev = rtd->card->dev;
 
 	dev_dbg(dev, "%s: Enter\n", __func__);
@@ -214,7 +214,7 @@ static void mop500_ab8500_shutdown(struct snd_pcm_substream *substream)
 static int mop500_ab8500_hw_params(struct snd_pcm_substream *substream,
 			struct snd_pcm_hw_params *params)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct device *dev = rtd->card->dev;
@@ -338,7 +338,7 @@ static int mop500_ab8500_hw_params(struct snd_pcm_substream *substream,
 
 static int mop500_ab8500_hw_free(struct snd_pcm_substream *substream)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 
 	mutex_lock(&mop500_ab8500_params_lock);

sound/soc/ux500/ux500_pcm.c

@@ -85,7 +85,7 @@ static int ux500_pcm_prepare_slave_config(struct snd_pcm_substream *substream,
 		struct snd_pcm_hw_params *params,
 		struct dma_slave_config *slave_config)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct msp_i2s_platform_data *pdata = asoc_rtd_to_cpu(rtd, 0)->dev->platform_data;
 	struct snd_dmaengine_dai_dma_data *snd_dma_params;
 	struct ux500_msp_dma_params *ste_dma_params;