ASoC: meson: 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/875zaj0ysr.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/meson/axg-card.c

@@ -40,7 +40,7 @@ static const struct snd_soc_pcm_stream codec_params = {
 static int axg_card_tdm_be_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 meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
 	struct axg_dai_link_tdm_data *be =
 		(struct axg_dai_link_tdm_data *)priv->link_data[rtd->num];

sound/soc/meson/gx-card.c

@@ -29,7 +29,7 @@ static const struct snd_soc_pcm_stream codec_params = {
 static int gx_card_i2s_be_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 meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
 	struct gx_dai_link_i2s_data *be =
 		(struct gx_dai_link_i2s_data *)priv->link_data[rtd->num];

sound/soc/meson/meson-card-utils.c

@@ -13,7 +13,7 @@ int meson_card_i2s_set_sysclk(struct snd_pcm_substream *substream,
 			      struct snd_pcm_hw_params *params,
 			      unsigned int mclk_fs)
 {
-	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;
 	unsigned int mclk;
 	int ret, i;

sound/soc/meson/meson-codec-glue.c

@@ -98,7 +98,7 @@ EXPORT_SYMBOL_GPL(meson_codec_glue_input_set_fmt);
 int meson_codec_glue_output_startup(struct snd_pcm_substream *substream,
 				    struct snd_soc_dai *dai)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct meson_codec_glue_input *in_data =
 		meson_codec_glue_output_get_input_data(dai->capture_widget);