diff --git a/sound/soc/ti/davinci-evm.c b/sound/soc/ti/davinci-evm.c
index 2cfbeebdfb41..105e56ab9cdc 100644
--- a/sound/soc/ti/davinci-evm.c
+++ b/sound/soc/ti/davinci-evm.c
@@ -28,7 +28,7 @@ struct snd_soc_card_drvdata_davinci {
 
 static int evm_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);
 	struct snd_soc_card *soc_card = rtd->card;
 	struct snd_soc_card_drvdata_davinci *drvdata =
 		snd_soc_card_get_drvdata(soc_card);
@@ -41,7 +41,7 @@ static int evm_startup(struct snd_pcm_substream *substream)
 
 static void evm_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 snd_soc_card *soc_card = rtd->card;
 	struct snd_soc_card_drvdata_davinci *drvdata =
 		snd_soc_card_get_drvdata(soc_card);
@@ -53,7 +53,7 @@ static void evm_shutdown(struct snd_pcm_substream *substream)
 static int evm_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 snd_soc_card *soc_card = rtd->card;
diff --git a/sound/soc/ti/davinci-vcif.c b/sound/soc/ti/davinci-vcif.c
index ee4d3ef821a1..f810123cc407 100644
--- a/sound/soc/ti/davinci-vcif.c
+++ b/sound/soc/ti/davinci-vcif.c
@@ -41,7 +41,7 @@ struct davinci_vcif_dev {
 
 static void davinci_vcif_start(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 davinci_vcif_dev *davinci_vcif_dev =
 			snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
 	struct davinci_vc *davinci_vc = davinci_vcif_dev->davinci_vc;
@@ -60,7 +60,7 @@ static void davinci_vcif_start(struct snd_pcm_substream *substream)
 
 static void davinci_vcif_stop(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 davinci_vcif_dev *davinci_vcif_dev =
 			snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
 	struct davinci_vc *davinci_vc = davinci_vcif_dev->davinci_vc;
diff --git a/sound/soc/ti/j721e-evm.c b/sound/soc/ti/j721e-evm.c
index 174306cf53ad..cb074af47a7d 100644
--- a/sound/soc/ti/j721e-evm.c
+++ b/sound/soc/ti/j721e-evm.c
@@ -249,7 +249,7 @@ static int j721e_rule_rate(struct snd_pcm_hw_params *params,
 
 static int j721e_audio_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);
 	struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 	unsigned int domain_id = rtd->dai_link->id;
 	struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
@@ -300,7 +300,7 @@ static int j721e_audio_startup(struct snd_pcm_substream *substream)
 static int j721e_audio_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_card *card = rtd->card;
 	struct j721e_priv *priv = snd_soc_card_get_drvdata(card);
 	unsigned int domain_id = rtd->dai_link->id;
@@ -367,7 +367,7 @@ out:
 
 static void j721e_audio_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 j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 	unsigned int domain_id = rtd->dai_link->id;
 	struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
diff --git a/sound/soc/ti/n810.c b/sound/soc/ti/n810.c
index a1672b479cb7..2802a33b9c5f 100644
--- a/sound/soc/ti/n810.c
+++ b/sound/soc/ti/n810.c
@@ -84,7 +84,7 @@ static void n810_ext_control(struct snd_soc_dapm_context *dapm)
 static int n810_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 
 	snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
 
@@ -100,7 +100,7 @@ static void n810_shutdown(struct snd_pcm_substream *substream)
 static int n810_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);
 	int err;
 
diff --git a/sound/soc/ti/omap-abe-twl6040.c b/sound/soc/ti/omap-abe-twl6040.c
index 61e45fea5dd8..16ea039ff865 100644
--- a/sound/soc/ti/omap-abe-twl6040.c
+++ b/sound/soc/ti/omap-abe-twl6040.c
@@ -45,7 +45,7 @@ static struct platform_device *dmic_codec_dev;
 static int omap_abe_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_card *card = rtd->card;
 	struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
@@ -77,7 +77,7 @@ static const struct snd_soc_ops omap_abe_ops = {
 static int omap_abe_dmic_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 *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	int ret = 0;
 
diff --git a/sound/soc/ti/omap-mcbsp.c b/sound/soc/ti/omap-mcbsp.c
index 32e3ccdbb7a2..6025b30bbe77 100644
--- a/sound/soc/ti/omap-mcbsp.c
+++ b/sound/soc/ti/omap-mcbsp.c
@@ -731,7 +731,7 @@ err_st:
 static void omap_mcbsp_set_threshold(struct snd_pcm_substream *substream,
 		unsigned int packet_size)
 {
-	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);
 	struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai);
 	int words;
@@ -896,7 +896,7 @@ static snd_pcm_sframes_t omap_mcbsp_dai_delay(
 			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 snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai);
 	u16 fifo_use;
diff --git a/sound/soc/ti/omap-twl4030.c b/sound/soc/ti/omap-twl4030.c
index 92dbe2c67290..b3ae7e9cb055 100644
--- a/sound/soc/ti/omap-twl4030.c
+++ b/sound/soc/ti/omap-twl4030.c
@@ -38,7 +38,7 @@ struct omap_twl4030 {
 static int omap_twl4030_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);
 	unsigned int fmt;
 
 	switch (params_channels(params)) {
diff --git a/sound/soc/ti/omap3pandora.c b/sound/soc/ti/omap3pandora.c
index b04146311b31..a287e9747c2a 100644
--- a/sound/soc/ti/omap3pandora.c
+++ b/sound/soc/ti/omap3pandora.c
@@ -31,7 +31,7 @@ static struct regulator *omap3pandora_dac_reg;
 static int omap3pandora_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);
 	int ret;
diff --git a/sound/soc/ti/osk5912.c b/sound/soc/ti/osk5912.c
index e01485cc51a1..40e29dda7e7a 100644
--- a/sound/soc/ti/osk5912.c
+++ b/sound/soc/ti/osk5912.c
@@ -38,7 +38,7 @@ static void osk_shutdown(struct snd_pcm_substream *substream)
 static int osk_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);
 	int err;
 
diff --git a/sound/soc/ti/rx51.c b/sound/soc/ti/rx51.c
index 2a714a004163..2176a95201bf 100644
--- a/sound/soc/ti/rx51.c
+++ b/sound/soc/ti/rx51.c
@@ -90,7 +90,7 @@ static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
 static int rx51_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_card *card = rtd->card;
 
 	snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
@@ -102,7 +102,7 @@ static int rx51_startup(struct snd_pcm_substream *substream)
 static int rx51_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);
 
 	/* Set the codec system clock for DAC and ADC */