Merge branch 'topic/pcm-list' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel

include/sound/soc.h

@@ -1106,7 +1106,7 @@ struct snd_soc_card {
 	/* CPU <--> Codec DAI links  */
 	struct snd_soc_dai_link *dai_link;
 	int num_links;
-	struct snd_soc_pcm_runtime *rtd;
+	struct list_head rtd_list;
 	int num_rtd;
 
 	/* optional codec specific configuration */
@@ -1201,6 +1201,9 @@ struct snd_soc_pcm_runtime {
 	struct dentry *debugfs_dpcm_root;
 	struct dentry *debugfs_dpcm_state;
 #endif
+
+	unsigned int num; /* 0-based and monotonic increasing */
+	struct list_head list; /* rtd list of the soc card */
 };
 
 /* mixer control */

sound/soc/fsl/fsl-asoc-card.c

@@ -222,12 +222,15 @@ static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card,
 					enum snd_soc_bias_level level)
 {
 	struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *codec_dai;
 	struct codec_priv *codec_priv = &priv->codec_priv;
 	struct device *dev = card->dev;
 	unsigned int pll_out;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec_dai = rtd->codec_dai;
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 

sound/soc/fsl/imx-wm8962.c

@@ -69,13 +69,16 @@ static int imx_wm8962_set_bias_level(struct snd_soc_card *card,
 					struct snd_soc_dapm_context *dapm,
 					enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *codec_dai;
 	struct imx_priv *priv = &card_priv;
 	struct imx_wm8962_data *data = snd_soc_card_get_drvdata(card);
 	struct device *dev = &priv->pdev->dev;
 	unsigned int pll_out;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec_dai = rtd->codec_dai;
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 
@@ -135,12 +138,15 @@ static int imx_wm8962_set_bias_level(struct snd_soc_card *card,
 
 static int imx_wm8962_late_probe(struct snd_soc_card *card)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *codec_dai;
 	struct imx_priv *priv = &card_priv;
 	struct imx_wm8962_data *data = snd_soc_card_get_drvdata(card);
 	struct device *dev = &priv->pdev->dev;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec_dai = rtd->codec_dai;
 	ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
 			data->clk_frequency, SND_SOC_CLOCK_IN);
 	if (ret < 0)

sound/soc/generic/simple-card.c

@@ -45,7 +45,7 @@ static int asoc_simple_card_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
 	struct simple_dai_props *dai_props =
-		&priv->dai_props[rtd - rtd->card->rtd];
+		&priv->dai_props[rtd->num];
 	int ret;
 
 	ret = clk_prepare_enable(dai_props->cpu_dai.clk);
@@ -64,7 +64,7 @@ static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
 	struct simple_dai_props *dai_props =
-		&priv->dai_props[rtd - rtd->card->rtd];
+		&priv->dai_props[rtd->num];
 
 	clk_disable_unprepare(dai_props->cpu_dai.clk);
 
@@ -78,8 +78,7 @@ static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props =
+	struct simple_dai_props *dai_props = &priv->dai_props[rtd->num];
-		&priv->dai_props[rtd - rtd->card->rtd];
 	unsigned int mclk, mclk_fs = 0;
 	int ret = 0;
 
@@ -174,10 +173,9 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 	struct snd_soc_dai *codec = rtd->codec_dai;
 	struct snd_soc_dai *cpu = rtd->cpu_dai;
 	struct simple_dai_props *dai_props;
-	int num, ret;
+	int ret;
 
-	num = rtd - rtd->card->rtd;
+	dai_props = &priv->dai_props[rtd->num];
-	dai_props = &priv->dai_props[num];
 	ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai);
 	if (ret < 0)
 		return ret;

sound/soc/intel/atom/sst-mfld-platform-pcm.c

@@ -760,15 +760,15 @@ static int sst_platform_remove(struct platform_device *pdev)
 static int sst_soc_prepare(struct device *dev)
 {
 	struct sst_data *drv = dev_get_drvdata(dev);
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
 	/* suspend all pcms first */
 	snd_soc_suspend(drv->soc_card->dev);
 	snd_soc_poweroff(drv->soc_card->dev);
 
 	/* set the SSPs to idle */
-	for (i = 0; i < drv->soc_card->num_rtd; i++) {
+	list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
-		struct snd_soc_dai *dai = drv->soc_card->rtd[i].cpu_dai;
+		struct snd_soc_dai *dai = rtd->cpu_dai;
 
 		if (dai->active) {
 			send_ssp_cmd(dai, dai->name, 0);
@@ -782,11 +782,11 @@ static int sst_soc_prepare(struct device *dev)
 static void sst_soc_complete(struct device *dev)
 {
 	struct sst_data *drv = dev_get_drvdata(dev);
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
 	/* restart SSPs */
-	for (i = 0; i < drv->soc_card->num_rtd; i++) {
+	list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
-		struct snd_soc_dai *dai = drv->soc_card->rtd[i].cpu_dai;
+		struct snd_soc_dai *dai = rtd->cpu_dai;
 
 		if (dai->active) {
 			sst_handle_vb_timer(dai, true);

sound/soc/intel/boards/cht_bsw_max98090_ti.c

@@ -41,12 +41,9 @@ struct cht_mc_private {
 
 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
 {
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_pcm_runtime *rtd;
-
-		rtd = card->rtd + i;
 		if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
 			     strlen(CHT_CODEC_DAI)))
 			return rtd->codec_dai;

sound/soc/intel/boards/cht_bsw_rt5645.c

@@ -47,12 +47,9 @@ struct cht_mc_private {
 
 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
 {
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_pcm_runtime *rtd;
-
-		rtd = card->rtd + i;
 		if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
 			     strlen(CHT_CODEC_DAI)))
 			return rtd->codec_dai;

sound/soc/intel/boards/cht_bsw_rt5672.c

@@ -46,12 +46,9 @@ static struct snd_soc_jack_pin cht_bsw_headset_pins[] = {
 
 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
 {
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_pcm_runtime *rtd;
-
-		rtd = card->rtd + i;
 		if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
 			     strlen(CHT_CODEC_DAI)))
 			return rtd->codec_dai;

sound/soc/pxa/mioa701_wm9713.c

@@ -81,8 +81,12 @@ static int rear_amp_power(struct snd_soc_codec *codec, int power)
 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
 			  struct snd_kcontrol *kctl, int event)
 {
-	struct snd_soc_codec *codec = widget->dapm->card->rtd[0].codec;
+	struct snd_soc_card *card = widget->dapm->card;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_codec *codec;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec = rtd->codec;
 	return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
 }
 

sound/soc/samsung/bells.c

@@ -58,11 +58,16 @@ static int bells_set_bias_level(struct snd_soc_card *card,
 				struct snd_soc_dapm_context *dapm,
 				enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_codec *codec = codec_dai->codec;
+	struct snd_soc_dai *codec_dai;
+	struct snd_soc_codec *codec;
 	struct bells_drvdata *bells = card->drvdata;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
+	codec_dai = rtd->codec_dai;
+	codec = codec_dai->codec;
+
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 
@@ -99,11 +104,16 @@ static int bells_set_bias_level_post(struct snd_soc_card *card,
 				     struct snd_soc_dapm_context *dapm,
 				     enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_codec *codec = codec_dai->codec;
+	struct snd_soc_dai *codec_dai;
+	struct snd_soc_codec *codec;
 	struct bells_drvdata *bells = card->drvdata;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
+	codec_dai = rtd->codec_dai;
+	codec = codec_dai->codec;
+
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 
@@ -137,14 +147,22 @@ static int bells_set_bias_level_post(struct snd_soc_card *card,
 static int bells_late_probe(struct snd_soc_card *card)
 {
 	struct bells_drvdata *bells = card->drvdata;
-	struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec;
+	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec;
+	struct snd_soc_codec *wm0010;
-	struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
+	struct snd_soc_codec *codec;
+	struct snd_soc_dai *aif1_dai;
 	struct snd_soc_dai *aif2_dai;
 	struct snd_soc_dai *aif3_dai;
 	struct snd_soc_dai *wm9081_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_AP_DSP].name);
+	wm0010 = rtd->codec;
+
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
+	codec = rtd->codec;
+	aif1_dai = rtd->codec_dai;
+
 	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
 				       ARIZONA_CLK_SRC_FLL1,
 				       bells->sysclk_rate,
@@ -181,7 +199,8 @@ static int bells_late_probe(struct snd_soc_card *card)
 		return ret;
 	}
 
-	aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai;
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_CODEC_CP].name);
+	aif2_dai = rtd->cpu_dai;
 
 	ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
 	if (ret != 0) {
@@ -192,8 +211,9 @@ static int bells_late_probe(struct snd_soc_card *card)
 	if (card->num_rtd == DAI_CODEC_SUB)
 		return 0;
 
-	aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai;
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_CODEC_SUB].name);
-	wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai;
+	aif3_dai = rtd->cpu_dai;
+	wm9081_dai = rtd->codec_dai;
 
 	ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
 	if (ret != 0) {

sound/soc/samsung/littlemill.c

@@ -23,9 +23,13 @@ static int littlemill_set_bias_level(struct snd_soc_card *card,
 					  struct snd_soc_dapm_context *dapm,
 					  enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *aif1_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *aif1_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	aif1_dai = rtd->codec_dai;
+
 	if (dapm->dev != aif1_dai->dev)
 		return 0;
 
@@ -66,9 +70,13 @@ static int littlemill_set_bias_level_post(struct snd_soc_card *card,
 					       struct snd_soc_dapm_context *dapm,
 					       enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *aif1_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *aif1_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	aif1_dai = rtd->codec_dai;
+
 	if (dapm->dev != aif1_dai->dev)
 		return 0;
 
@@ -168,9 +176,13 @@ static int bbclk_ev(struct snd_soc_dapm_widget *w,
 		    struct snd_kcontrol *kcontrol, int event)
 {
 	struct snd_soc_card *card = w->dapm->card;
-	struct snd_soc_dai *aif2_dai = card->rtd[1].cpu_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *aif2_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
+	aif2_dai = rtd->cpu_dai;
+
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
 		ret = snd_soc_dai_set_pll(aif2_dai, WM8994_FLL2,
@@ -245,11 +257,19 @@ static struct snd_soc_jack littlemill_headset;
 
 static int littlemill_late_probe(struct snd_soc_card *card)
 {
-	struct snd_soc_codec *codec = card->rtd[0].codec;
+	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_dai *aif1_dai = card->rtd[0].codec_dai;
+	struct snd_soc_codec *codec;
-	struct snd_soc_dai *aif2_dai = card->rtd[1].cpu_dai;
+	struct snd_soc_dai *aif1_dai;
+	struct snd_soc_dai *aif2_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec = rtd->codec;
+	aif1_dai = rtd->codec_dai;
+
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
+	aif2_dai = rtd->cpu_dai;
+
 	ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
 				     32768, SND_SOC_CLOCK_IN);
 	if (ret < 0)

sound/soc/samsung/odroidx2_max98090.c

@@ -25,10 +25,15 @@ static struct snd_soc_dai_link odroidx2_dai[];
 
 static int odroidx2_late_probe(struct snd_soc_card *card)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_dai *cpu_dai = card->rtd[0].cpu_dai;
+	struct snd_soc_dai *codec_dai;
+	struct snd_soc_dai *cpu_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec_dai = rtd->codec_dai;
+	cpu_dai = rtd->cpu_dai;
+
 	ret = snd_soc_dai_set_sysclk(codec_dai, 0, MAX98090_MCLK,
 						SND_SOC_CLOCK_IN);
 

sound/soc/samsung/snow.c

@@ -35,10 +35,15 @@ static struct snd_soc_dai_link snow_dai[] = {
 
 static int snow_late_probe(struct snd_soc_card *card)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_dai *cpu_dai = card->rtd[0].cpu_dai;
+	struct snd_soc_dai *codec_dai;
+	struct snd_soc_dai *cpu_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec_dai = rtd->codec_dai;
+	cpu_dai = rtd->cpu_dai;
+
 	/* Set the MCLK rate for the codec */
 	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
 					FIN_PLL_RATE, SND_SOC_CLOCK_IN);

sound/soc/samsung/speyside.c

@@ -25,9 +25,13 @@ static int speyside_set_bias_level(struct snd_soc_card *card,
 				   struct snd_soc_dapm_context *dapm,
 				   enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[1].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *codec_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
+	codec_dai = rtd->codec_dai;
+
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 
@@ -57,9 +61,13 @@ static int speyside_set_bias_level_post(struct snd_soc_card *card,
 					struct snd_soc_dapm_context *dapm,
 					enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[1].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *codec_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
+	codec_dai = rtd->codec_dai;
+
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 

sound/soc/samsung/tobermory.c

@@ -23,9 +23,13 @@ static int tobermory_set_bias_level(struct snd_soc_card *card,
 					  struct snd_soc_dapm_context *dapm,
 					  enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *codec_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec_dai = rtd->codec_dai;
+
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 
@@ -62,9 +66,13 @@ static int tobermory_set_bias_level_post(struct snd_soc_card *card,
 					       struct snd_soc_dapm_context *dapm,
 					       enum snd_soc_bias_level level)
 {
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *codec_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec_dai = rtd->codec_dai;
+
 	if (dapm->dev != codec_dai->dev)
 		return 0;
 
@@ -170,10 +178,15 @@ static struct snd_soc_jack_pin tobermory_headset_pins[] = {
 
 static int tobermory_late_probe(struct snd_soc_card *card)
 {
-	struct snd_soc_codec *codec = card->rtd[0].codec;
+	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+	struct snd_soc_codec *codec;
+	struct snd_soc_dai *codec_dai;
 	int ret;
 
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
+	codec = rtd->codec;
+	codec_dai = rtd->codec_dai;
+
 	ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
 				     32768, SND_SOC_CLOCK_IN);
 	if (ret < 0)

sound/soc/sh/rcar/core.c

@@ -1040,7 +1040,7 @@ static int __rsnd_kctrl_new(struct rsnd_mod *mod,
 		.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name		= name,
 		.info		= rsnd_kctrl_info,
-		.index		= rtd - soc_card->rtd,
+		.index		= rtd->num,
 		.get		= rsnd_kctrl_get,
 		.put		= rsnd_kctrl_put,
 		.private_value	= (unsigned long)cfg,

sound/soc/sh/rcar/rsrc-card.c

@@ -75,7 +75,7 @@ static int rsrc_card_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct rsrc_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
 	struct rsrc_card_dai *dai_props =
-		rsrc_priv_to_props(priv, rtd - rtd->card->rtd);
+		rsrc_priv_to_props(priv, rtd->num);
 
 	return clk_prepare_enable(dai_props->clk);
 }
@@ -85,7 +85,7 @@ static void rsrc_card_shutdown(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct rsrc_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
 	struct rsrc_card_dai *dai_props =
-		rsrc_priv_to_props(priv, rtd - rtd->card->rtd);
+		rsrc_priv_to_props(priv, rtd->num);
 
 	clk_disable_unprepare(dai_props->clk);
 }
@@ -101,7 +101,7 @@ static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 	struct snd_soc_dai *dai;
 	struct snd_soc_dai_link *dai_link;
 	struct rsrc_card_dai *dai_props;
-	int num = rtd - rtd->card->rtd;
+	int num = rtd->num;
 	int ret;
 
 	dai_link	= rsrc_priv_to_link(priv, num);

sound/soc/soc-core.c

@@ -537,26 +537,75 @@ static inline void snd_soc_debugfs_exit(void)
 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 		const char *dai_link, int stream)
 {
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
-	for (i = 0; i < card->num_links; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		if (card->rtd[i].dai_link->no_pcm &&
+		if (rtd->dai_link->no_pcm &&
-			!strcmp(card->rtd[i].dai_link->name, dai_link))
+			!strcmp(rtd->dai_link->name, dai_link))
-			return card->rtd[i].pcm->streams[stream].substream;
+			return rtd->pcm->streams[stream].substream;
 	}
 	dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link);
 	return NULL;
 }
 EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream);
 
+static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
+	struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
+{
+	struct snd_soc_pcm_runtime *rtd;
+
+	rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL);
+	if (!rtd)
+		return NULL;
+
+	rtd->card = card;
+	rtd->dai_link = dai_link;
+	rtd->codec_dais = kzalloc(sizeof(struct snd_soc_dai *) *
+					dai_link->num_codecs,
+					GFP_KERNEL);
+	if (!rtd->codec_dais) {
+		kfree(rtd);
+		return NULL;
+	}
+
+	return rtd;
+}
+
+static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd)
+{
+	if (rtd && rtd->codec_dais)
+		kfree(rtd->codec_dais);
+	kfree(rtd);
+}
+
+static void soc_add_pcm_runtime(struct snd_soc_card *card,
+		struct snd_soc_pcm_runtime *rtd)
+{
+	list_add_tail(&rtd->list, &card->rtd_list);
+	rtd->num = card->num_rtd;
+	card->num_rtd++;
+}
+
+static void soc_remove_pcm_runtimes(struct snd_soc_card *card)
+{
+	struct snd_soc_pcm_runtime *rtd, *_rtd;
+
+	list_for_each_entry_safe(rtd, _rtd, &card->rtd_list, list) {
+		list_del(&rtd->list);
+		soc_free_pcm_runtime(rtd);
+	}
+
+	card->num_rtd = 0;
+}
+
 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 		const char *dai_link)
 {
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
-	for (i = 0; i < card->num_links; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		if (!strcmp(card->rtd[i].dai_link->name, dai_link))
+		if (!strcmp(rtd->dai_link->name, dai_link))
-			return &card->rtd[i];
+			return rtd;
 	}
 	dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link);
 	return NULL;
@@ -578,7 +627,8 @@ int snd_soc_suspend(struct device *dev)
 {
 	struct snd_soc_card *card = dev_get_drvdata(dev);
 	struct snd_soc_codec *codec;
-	int i, j;
+	struct snd_soc_pcm_runtime *rtd;
+	int i;
 
 	/* If the card is not initialized yet there is nothing to do */
 	if (!card->instantiated)
@@ -595,13 +645,13 @@ int snd_soc_suspend(struct device *dev)
 	snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
 
 	/* mute any active DACs */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
-		for (j = 0; j < card->rtd[i].num_codecs; j++) {
+		for (i = 0; i < rtd->num_codecs; i++) {
-			struct snd_soc_dai *dai = card->rtd[i].codec_dais[j];
+			struct snd_soc_dai *dai = rtd->codec_dais[i];
 			struct snd_soc_dai_driver *drv = dai->driver;
 
 			if (drv->ops->digital_mute && dai->playback_active)
@@ -610,20 +660,20 @@ int snd_soc_suspend(struct device *dev)
 	}
 
 	/* suspend all pcms */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
-		snd_pcm_suspend_all(card->rtd[i].pcm);
+		snd_pcm_suspend_all(rtd->pcm);
 	}
 
 	if (card->suspend_pre)
 		card->suspend_pre(card);
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
 		if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control)
@@ -631,19 +681,19 @@ int snd_soc_suspend(struct device *dev)
 	}
 
 	/* close any waiting streams */
-	for (i = 0; i < card->num_rtd; i++)
+	list_for_each_entry(rtd, &card->rtd_list, list)
-		flush_delayed_work(&card->rtd[i].delayed_work);
+		flush_delayed_work(&rtd->delayed_work);
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
-		snd_soc_dapm_stream_event(&card->rtd[i],
+		snd_soc_dapm_stream_event(rtd,
 					  SNDRV_PCM_STREAM_PLAYBACK,
 					  SND_SOC_DAPM_STREAM_SUSPEND);
 
-		snd_soc_dapm_stream_event(&card->rtd[i],
+		snd_soc_dapm_stream_event(rtd,
 					  SNDRV_PCM_STREAM_CAPTURE,
 					  SND_SOC_DAPM_STREAM_SUSPEND);
 	}
@@ -690,10 +740,10 @@ int snd_soc_suspend(struct device *dev)
 		}
 	}
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
 		if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control)
@@ -717,8 +767,9 @@ static void soc_resume_deferred(struct work_struct *work)
 {
 	struct snd_soc_card *card =
 			container_of(work, struct snd_soc_card, deferred_resume_work);
+	struct snd_soc_pcm_runtime *rtd;
 	struct snd_soc_codec *codec;
-	int i, j;
+	int i;
 
 	/* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
 	 * so userspace apps are blocked from touching us
@@ -733,10 +784,10 @@ static void soc_resume_deferred(struct work_struct *work)
 		card->resume_pre(card);
 
 	/* resume control bus DAIs */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
 		if (cpu_dai->driver->resume && cpu_dai->driver->bus_control)
@@ -751,28 +802,28 @@ static void soc_resume_deferred(struct work_struct *work)
 		}
 	}
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
-		snd_soc_dapm_stream_event(&card->rtd[i],
+		snd_soc_dapm_stream_event(rtd,
 					  SNDRV_PCM_STREAM_PLAYBACK,
 					  SND_SOC_DAPM_STREAM_RESUME);
 
-		snd_soc_dapm_stream_event(&card->rtd[i],
+		snd_soc_dapm_stream_event(rtd,
 					  SNDRV_PCM_STREAM_CAPTURE,
 					  SND_SOC_DAPM_STREAM_RESUME);
 	}
 
 	/* unmute any active DACs */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
-		for (j = 0; j < card->rtd[i].num_codecs; j++) {
+		for (i = 0; i < rtd->num_codecs; i++) {
-			struct snd_soc_dai *dai = card->rtd[i].codec_dais[j];
+			struct snd_soc_dai *dai = rtd->codec_dais[i];
 			struct snd_soc_dai_driver *drv = dai->driver;
 
 			if (drv->ops->digital_mute && dai->playback_active)
@@ -780,10 +831,10 @@ static void soc_resume_deferred(struct work_struct *work)
 		}
 	}
 
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 
-		if (card->rtd[i].dai_link->ignore_suspend)
+		if (rtd->dai_link->ignore_suspend)
 			continue;
 
 		if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control)
@@ -808,15 +859,14 @@ int snd_soc_resume(struct device *dev)
 {
 	struct snd_soc_card *card = dev_get_drvdata(dev);
 	bool bus_control = false;
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
 	/* If the card is not initialized yet there is nothing to do */
 	if (!card->instantiated)
 		return 0;
 
 	/* activate pins from sleep state */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
 		struct snd_soc_dai **codec_dais = rtd->codec_dais;
 		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 		int j;
@@ -837,8 +887,8 @@ int snd_soc_resume(struct device *dev)
 	 * have that problem and may take a substantial amount of time to resume
 	 * due to I/O costs and anti-pop so handle them out of line.
 	 */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 		bus_control |= cpu_dai->driver->bus_control;
 	}
 	if (bus_control) {
@@ -913,16 +963,20 @@ static struct snd_soc_dai *snd_soc_find_dai(
 static int soc_bind_dai_link(struct snd_soc_card *card, int num)
 {
 	struct snd_soc_dai_link *dai_link = &card->dai_link[num];
-	struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
+	struct snd_soc_pcm_runtime *rtd;
 	struct snd_soc_dai_link_component *codecs = dai_link->codecs;
 	struct snd_soc_dai_link_component cpu_dai_component;
-	struct snd_soc_dai **codec_dais = rtd->codec_dais;
+	struct snd_soc_dai **codec_dais;
 	struct snd_soc_platform *platform;
 	const char *platform_name;
 	int i;
 
 	dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num);
 
+	rtd = soc_new_pcm_runtime(card, dai_link);
+	if (!rtd)
+		return -ENOMEM;
+
 	cpu_dai_component.name = dai_link->cpu_name;
 	cpu_dai_component.of_node = dai_link->cpu_of_node;
 	cpu_dai_component.dai_name = dai_link->cpu_dai_name;
@@ -930,18 +984,19 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
 	if (!rtd->cpu_dai) {
 		dev_err(card->dev, "ASoC: CPU DAI %s not registered\n",
 			dai_link->cpu_dai_name);
-		return -EPROBE_DEFER;
+		goto _err_defer;
 	}
 
 	rtd->num_codecs = dai_link->num_codecs;
 
 	/* Find CODEC from registered CODECs */
+	codec_dais = rtd->codec_dais;
 	for (i = 0; i < rtd->num_codecs; i++) {
 		codec_dais[i] = snd_soc_find_dai(&codecs[i]);
 		if (!codec_dais[i]) {
 			dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
 				codecs[i].dai_name);
-			return -EPROBE_DEFER;
+			goto _err_defer;
 		}
 	}
 
@@ -973,9 +1028,12 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
 		return -EPROBE_DEFER;
 	}
 
-	card->num_rtd++;
+	soc_add_pcm_runtime(card, rtd);
-
 	return 0;
+
+_err_defer:
+	soc_free_pcm_runtime(rtd);
+	return  -EPROBE_DEFER;
 }
 
 static void soc_remove_component(struct snd_soc_component *component)
@@ -1014,9 +1072,9 @@ static void soc_remove_dai(struct snd_soc_dai *dai, int order)
 	}
 }
 
-static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
+static void soc_remove_link_dais(struct snd_soc_card *card,
+		struct snd_soc_pcm_runtime *rtd, int order)
 {
-	struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
 	int i;
 
 	/* unregister the rtd device */
@@ -1032,10 +1090,9 @@ static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
 	soc_remove_dai(rtd->cpu_dai, order);
 }
 
-static void soc_remove_link_components(struct snd_soc_card *card, int num,
+static void soc_remove_link_components(struct snd_soc_card *card,
-				       int order)
+	struct snd_soc_pcm_runtime *rtd, int order)
 {
-	struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_platform *platform = rtd->platform;
 	struct snd_soc_component *component;
@@ -1061,21 +1118,20 @@ static void soc_remove_link_components(struct snd_soc_card *card, int num,
 
 static void soc_remove_dai_links(struct snd_soc_card *card)
 {
-	int dai, order;
+	int order;
+	struct snd_soc_pcm_runtime *rtd;
 
 	for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
 			order++) {
-		for (dai = 0; dai < card->num_rtd; dai++)
+		list_for_each_entry(rtd, &card->rtd_list, list)
-			soc_remove_link_dais(card, dai, order);
+			soc_remove_link_dais(card, rtd, order);
 	}
 
 	for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
 			order++) {
-		for (dai = 0; dai < card->num_rtd; dai++)
+		list_for_each_entry(rtd, &card->rtd_list, list)
-			soc_remove_link_components(card, dai, order);
+			soc_remove_link_components(card, rtd, order);
 	}
-
-	card->num_rtd = 0;
 }
 
 static void soc_set_name_prefix(struct snd_soc_card *card,
@@ -1220,10 +1276,10 @@ static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
-static int soc_probe_link_components(struct snd_soc_card *card, int num,
+static int soc_probe_link_components(struct snd_soc_card *card,
+			struct snd_soc_pcm_runtime *rtd,
 				     int order)
 {
-	struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
 	struct snd_soc_platform *platform = rtd->platform;
 	struct snd_soc_component *component;
 	int i, ret;
@@ -1319,15 +1375,15 @@ static int soc_link_dai_widgets(struct snd_soc_card *card,
 	return 0;
 }
 
-static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
+static int soc_probe_link_dais(struct snd_soc_card *card,
+		struct snd_soc_pcm_runtime *rtd, int order)
 {
-	struct snd_soc_dai_link *dai_link = &card->dai_link[num];
+	struct snd_soc_dai_link *dai_link = rtd->dai_link;
-	struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	int i, ret;
 
 	dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
-			card->name, num, order);
+			card->name, rtd->num, order);
 
 	/* set default power off timeout */
 	rtd->pmdown_time = pmdown_time;
@@ -1372,7 +1428,7 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
 
 	if (cpu_dai->driver->compress_new) {
 		/*create compress_device"*/
-		ret = cpu_dai->driver->compress_new(rtd, num);
+		ret = cpu_dai->driver->compress_new(rtd, rtd->num);
 		if (ret < 0) {
 			dev_err(card->dev, "ASoC: can't create compress %s\n",
 					 dai_link->stream_name);
@@ -1382,7 +1438,7 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
 
 		if (!dai_link->params) {
 			/* create the pcm */
-			ret = soc_new_pcm(rtd, num);
+			ret = soc_new_pcm(rtd, rtd->num);
 			if (ret < 0) {
 				dev_err(card->dev, "ASoC: can't create pcm %s :%d\n",
 				       dai_link->stream_name, ret);
@@ -1552,6 +1608,7 @@ EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt);
 static int snd_soc_instantiate_card(struct snd_soc_card *card)
 {
 	struct snd_soc_codec *codec;
+	struct snd_soc_pcm_runtime *rtd;
 	int ret, i, order;
 
 	mutex_lock(&client_mutex);
@@ -1624,8 +1681,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	/* probe all components used by DAI links on this card */
 	for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
 			order++) {
-		for (i = 0; i < card->num_links; i++) {
+		list_for_each_entry(rtd, &card->rtd_list, list) {
-			ret = soc_probe_link_components(card, i, order);
+			ret = soc_probe_link_components(card, rtd, order);
 			if (ret < 0) {
 				dev_err(card->dev,
 					"ASoC: failed to instantiate card %d\n",
@@ -1638,8 +1695,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	/* probe all DAI links on this card */
 	for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
 			order++) {
-		for (i = 0; i < card->num_links; i++) {
+		list_for_each_entry(rtd, &card->rtd_list, list) {
-			ret = soc_probe_link_dais(card, i, order);
+			ret = soc_probe_link_dais(card, rtd, order);
 			if (ret < 0) {
 				dev_err(card->dev,
 					"ASoC: failed to instantiate card %d\n",
@@ -1733,6 +1790,7 @@ card_probe_error:
 	snd_card_free(card->snd_card);
 
 base_error:
+	soc_remove_pcm_runtimes(card);
 	mutex_unlock(&card->mutex);
 	mutex_unlock(&client_mutex);
 
@@ -1763,13 +1821,12 @@ static int soc_probe(struct platform_device *pdev)
 
 static int soc_cleanup_card_resources(struct snd_soc_card *card)
 {
+	struct snd_soc_pcm_runtime *rtd;
 	int i;
 
 	/* make sure any delayed work runs */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list)
-		struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
 		flush_delayed_work(&rtd->delayed_work);
-	}
 
 	/* remove auxiliary devices */
 	for (i = 0; i < card->num_aux_devs; i++)
@@ -1777,6 +1834,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
 
 	/* remove and free each DAI */
 	soc_remove_dai_links(card);
+	soc_remove_pcm_runtimes(card);
 
 	soc_cleanup_card_debugfs(card);
 
@@ -1803,29 +1861,26 @@ static int soc_remove(struct platform_device *pdev)
 int snd_soc_poweroff(struct device *dev)
 {
 	struct snd_soc_card *card = dev_get_drvdata(dev);
-	int i;
+	struct snd_soc_pcm_runtime *rtd;
 
 	if (!card->instantiated)
 		return 0;
 
 	/* Flush out pmdown_time work - we actually do want to run it
 	 * now, we're shutting down so no imminent restart. */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list)
-		struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
 		flush_delayed_work(&rtd->delayed_work);
-	}
 
 	snd_soc_dapm_shutdown(card);
 
 	/* deactivate pins to sleep state */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
 		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-		int j;
+		int i;
 
 		pinctrl_pm_select_sleep_state(cpu_dai->dev);
-		for (j = 0; j < rtd->num_codecs; j++) {
+		for (i = 0; i < rtd->num_codecs; i++) {
-			struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
+			struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
 			pinctrl_pm_select_sleep_state(codec_dai->dev);
 		}
 	}
@@ -2337,6 +2392,7 @@ static int snd_soc_init_multicodec(struct snd_soc_card *card,
 int snd_soc_register_card(struct snd_soc_card *card)
 {
 	int i, j, ret;
+	struct snd_soc_pcm_runtime *rtd;
 
 	if (!card->name || !card->dev)
 		return -EINVAL;
@@ -2408,25 +2464,15 @@ int snd_soc_register_card(struct snd_soc_card *card)
 
 	snd_soc_initialize_card_lists(card);
 
-	card->rtd = devm_kzalloc(card->dev,
+	INIT_LIST_HEAD(&card->rtd_list);
-				 sizeof(struct snd_soc_pcm_runtime) *
-				 (card->num_links + card->num_aux_devs),
-				 GFP_KERNEL);
-	if (card->rtd == NULL)
-		return -ENOMEM;
 	card->num_rtd = 0;
-	card->rtd_aux = &card->rtd[card->num_links];
 
-	for (i = 0; i < card->num_links; i++) {
+	card->rtd_aux = devm_kzalloc(card->dev,
-		card->rtd[i].card = card;
+				 sizeof(struct snd_soc_pcm_runtime) *
-		card->rtd[i].dai_link = &card->dai_link[i];
+				 card->num_aux_devs,
-		card->rtd[i].codec_dais = devm_kzalloc(card->dev,
+				 GFP_KERNEL);
-					sizeof(struct snd_soc_dai *) *
+	if (card->rtd_aux == NULL)
-					(card->rtd[i].dai_link->num_codecs),
+		return -ENOMEM;
-					GFP_KERNEL);
-		if (card->rtd[i].codec_dais == NULL)
-			return -ENOMEM;
-	}
 
 	for (i = 0; i < card->num_aux_devs; i++)
 		card->rtd_aux[i].card = card;
@@ -2442,8 +2488,7 @@ int snd_soc_register_card(struct snd_soc_card *card)
 		return ret;
 
 	/* deactivate pins to sleep state */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list)  {
-		struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
 		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 		int j;
 

sound/soc/soc-dapm.c

@@ -3893,13 +3893,10 @@ static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream,
 
 void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
 {
-	struct snd_soc_pcm_runtime *rtd = card->rtd;
+	struct snd_soc_pcm_runtime *rtd;
-	int i;
 
 	/* for each BE DAI link... */
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(rtd, &card->rtd_list, list)  {
-		rtd = &card->rtd[i];
-
 		/*
 		 * dynamic FE links have no fixed DAI mapping.
 		 * CODEC<->CODEC links have no direct connection.

sound/soc/soc-pcm.c

@@ -1213,11 +1213,10 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card,
 		struct snd_soc_dapm_widget *widget, int stream)
 {
 	struct snd_soc_pcm_runtime *be;
-	int i, j;
+	int i;
 
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		for (i = 0; i < card->num_links; i++) {
+		list_for_each_entry(be, &card->rtd_list, list) {
-			be = &card->rtd[i];
 
 			if (!be->dai_link->no_pcm)
 				continue;
@@ -1225,16 +1224,15 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card,
 			if (be->cpu_dai->playback_widget == widget)
 				return be;
 
-			for (j = 0; j < be->num_codecs; j++) {
+			for (i = 0; i < be->num_codecs; i++) {
-				struct snd_soc_dai *dai = be->codec_dais[j];
+				struct snd_soc_dai *dai = be->codec_dais[i];
 				if (dai->playback_widget == widget)
 					return be;
 			}
 		}
 	} else {
 
-		for (i = 0; i < card->num_links; i++) {
+		list_for_each_entry(be, &card->rtd_list, list) {
-			be = &card->rtd[i];
 
 			if (!be->dai_link->no_pcm)
 				continue;
@@ -1242,8 +1240,8 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card,
 			if (be->cpu_dai->capture_widget == widget)
 				return be;
 
-			for (j = 0; j < be->num_codecs; j++) {
+			for (i = 0; i < be->num_codecs; i++) {
-				struct snd_soc_dai *dai = be->codec_dais[j];
+				struct snd_soc_dai *dai = be->codec_dais[i];
 				if (dai->capture_widget == widget)
 					return be;
 			}
@@ -2343,12 +2341,12 @@ static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream)
  */
 int soc_dpcm_runtime_update(struct snd_soc_card *card)
 {
-	int i, old, new, paths;
+	struct snd_soc_pcm_runtime *fe;
+	int old, new, paths;
 
 	mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
-	for (i = 0; i < card->num_rtd; i++) {
+	list_for_each_entry(fe, &card->rtd_list, list) {
 		struct snd_soc_dapm_widget_list *list;
-		struct snd_soc_pcm_runtime *fe = &card->rtd[i];
 
 		/* make sure link is FE */
 		if (!fe->dai_link->dynamic)

sound/soc/tegra/tegra_wm8903.c

@@ -199,7 +199,8 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
 
 static int tegra_wm8903_remove(struct snd_soc_card *card)
 {
-	struct snd_soc_pcm_runtime *rtd = &(card->rtd[0]);
+	struct snd_soc_pcm_runtime *rtd =
+		snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);