diff --git a/sound/soc/pxa/brownstone.c b/sound/soc/pxa/brownstone.c
index 016a91199485150345bcde36b663b303bd141f58..f310a8e91bbf0e14a14b99e2496175f46ad3b1da 100644
--- a/sound/soc/pxa/brownstone.c
+++ b/sound/soc/pxa/brownstone.c
@@ -43,7 +43,7 @@ static const struct snd_soc_dapm_route brownstone_audio_map[] = {
 static int brownstone_wm8994_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 freq_out, sspa_mclk, sysclk;
diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index 6fbef9a0afa730cedd4e0503a6bc73c83eb9a4e8..8ee2dea25a8d0263a94432952a39c06fe7a947ee 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -96,7 +96,7 @@ static void corgi_ext_control(struct snd_soc_dapm_context *dapm)
 
 static int corgi_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);
 
 	/* check the jack status at stream startup */
 	corgi_ext_control(&rtd->card->dapm);
@@ -115,7 +115,7 @@ static void corgi_shutdown(struct snd_pcm_substream *substream)
 static int corgi_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);
 	unsigned int clk = 0;
diff --git a/sound/soc/pxa/hx4700.c b/sound/soc/pxa/hx4700.c
index b4da9a9a65210e784f6fedd1841b167ebe96fa48..7334fac758defe778cb14fcefca7014dad269006 100644
--- a/sound/soc/pxa/hx4700.c
+++ b/sound/soc/pxa/hx4700.c
@@ -53,7 +53,7 @@ static struct snd_soc_jack_gpio hs_jack_gpio = {
 static int hx4700_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 = 0;
diff --git a/sound/soc/pxa/imote2.c b/sound/soc/pxa/imote2.c
index 3014e8244ab4666d571f2621488a518fa7f67308..a575676508b35a0812f0ecd661c7ee6b9123b708 100644
--- a/sound/soc/pxa/imote2.c
+++ b/sound/soc/pxa/imote2.c
@@ -11,7 +11,7 @@
 static int imote2_asoc_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);
 	unsigned int clk = 0;
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c
index e4c818f4cd62b34ad9f3d7e1fcce3c217541992b..a5f326c97af23e5fbf03e39e3b08ba0b9659c2e9 100644
--- a/sound/soc/pxa/magician.c
+++ b/sound/soc/pxa/magician.c
@@ -68,7 +68,7 @@ static void magician_ext_control(struct snd_soc_dapm_context *dapm)
 
 static int magician_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);
 
 	/* check the jack status at stream startup */
 	magician_ext_control(&rtd->card->dapm);
@@ -82,7 +82,7 @@ static int magician_startup(struct snd_pcm_substream *substream)
 static int magician_playback_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);
 	unsigned int width;
@@ -120,7 +120,7 @@ static int magician_playback_hw_params(struct snd_pcm_substream *substream,
 static int magician_capture_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 = 0;
diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 3fe6c4c5a3ab24ebac10c8759373fe852890c85e..53fc49e32fbc8e8da8b41ecae53664bd5cb2d92e 100644
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -110,7 +110,7 @@ static bool filter(struct dma_chan *chan, void *param)
 static int mmp_pcm_open(struct snd_soc_component *component,
 			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 platform_device *pdev = to_platform_device(component->dev);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct mmp_dma_data dma_data;
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index 287984a564c8197788dcab5e73185336a04b68ac..323ba3e23039ddf6158d7c23902aed42e13f288d 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -68,7 +68,7 @@ static void poodle_ext_control(struct snd_soc_dapm_context *dapm)
 
 static int poodle_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);
 
 	/* check the jack status at stream startup */
 	poodle_ext_control(&rtd->card->dapm);
@@ -89,7 +89,7 @@ static void poodle_shutdown(struct snd_pcm_substream *substream)
 static int poodle_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);
 	unsigned int clk = 0;
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 03102e938ba138a1aaf839186b4471caf6d9fc9a..5301859a8453c7000641fea3bf0d39c65567b3da 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -95,7 +95,7 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_i2s_pcm_stereo_in = {
 static int pxa2xx_i2s_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 snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 
 	if (IS_ERR(clk_i2s))
diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c
index 6d8174f629358097dfe5ed6af518473e86cd1ce7..7c1384a869ca482f9cac29925510cb80f6ac6aa8 100644
--- a/sound/soc/pxa/spitz.c
+++ b/sound/soc/pxa/spitz.c
@@ -105,7 +105,7 @@ static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
 
 static int spitz_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);
 
 	/* check the jack status at stream startup */
 	spitz_ext_control(&rtd->card->dapm);
@@ -116,7 +116,7 @@ static int spitz_startup(struct snd_pcm_substream *substream)
 static int spitz_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);
 	unsigned int clk = 0;
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index b429db25f88418e5f3e47ad90962fa4a4cdbd479..3b40b5fa5de7e2bb8cef493e0923f4964eb98bcd 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -72,7 +72,7 @@ static void tosa_ext_control(struct snd_soc_dapm_context *dapm)
 
 static int tosa_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);
 
 	/* check the jack status at stream startup */
 	tosa_ext_control(&rtd->card->dapm);
diff --git a/sound/soc/pxa/z2.c b/sound/soc/pxa/z2.c
index 6eee1aefc89a864be35ae87be845d8bc1d1f6521..edf2b9eec5b8b4f92baae3f3bb486690cbfa733b 100644
--- a/sound/soc/pxa/z2.c
+++ b/sound/soc/pxa/z2.c
@@ -33,7 +33,7 @@ static struct snd_soc_card snd_soc_z2;
 static int z2_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);
 	unsigned int clk = 0;
diff --git a/sound/soc/pxa/zylonite.c b/sound/soc/pxa/zylonite.c
index 447b59b8bd33ccf11e598b86d0ac806ab474025b..bb89a53f4ab10a2189beaf60c0b20e8d6da608c1 100644
--- a/sound/soc/pxa/zylonite.c
+++ b/sound/soc/pxa/zylonite.c
@@ -75,7 +75,7 @@ static int zylonite_wm9713_init(struct snd_soc_pcm_runtime *rtd)
 static int zylonite_voice_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);
 	unsigned int wm9713_div = 0;