ASoC: amd: Use snd_soc_substream_to_rtd() for accessing private_data

Do not open-code snd_soc_substream_to_rtd().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240430-asoc-snd-substream-clean-v1-5-6f8a8902b479@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp/acp-mach-common.c

@@ -217,7 +217,7 @@ static void acp_card_shutdown(struct snd_pcm_substream *substream)
 static int acp_card_rt5682_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 = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_card *card = rtd->card;
 	struct acp_card_drvdata *drvdata = card->drvdata;
 	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);

sound/soc/amd/acp3x-rt5682-max9836.c

@@ -143,7 +143,7 @@ static int rt5682_clk_enable(struct snd_pcm_substream *substream)
 static int acp3x_1015_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 = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_dai *codec_dai;
 	int srate, i, ret;
 

sound/soc/amd/ps/ps-sdw-dma.c

@@ -218,7 +218,7 @@ static int acp63_sdw_dma_open(struct snd_soc_component *component,
 	struct acp_sdw_dma_stream *stream;
 	struct snd_soc_dai *cpu_dai;
 	struct amd_sdw_manager *amd_manager;
-	struct snd_soc_pcm_runtime *prtd = substream->private_data;
+	struct snd_soc_pcm_runtime *prtd = snd_soc_substream_to_rtd(substream);
 	int ret;
 
 	runtime = substream->runtime;