diff mbox series

Applied "ASoC: add for_each_rtd_codec_dai() macro" to the asoc tree

Message ID 20180904162212.EE59411227D8@debutante.sirena.org.uk (mailing list archive)
State New, archived
Headers show
Series Applied "ASoC: add for_each_rtd_codec_dai() macro" to the asoc tree | expand

Commit Message

Mark Brown Sept. 4, 2018, 4:22 p.m. UTC 
The patch

   ASoC: add for_each_rtd_codec_dai() macro

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

From 0b7990e38971da403ce223d8bdc758a817eb72f8 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 3 Sep 2018 02:12:56 +0000
Subject: [PATCH] ASoC: add for_each_rtd_codec_dai() macro

ALSA SoC snd_soc_pcm_runtime has snd_soc_dai array for codec_dai.
To be more readable code, this patch adds
new for_each_rtd_codec_dai() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/soc.h                           |   7 +
 sound/soc/intel/boards/kbl_rt5663_max98927.c  |   5 +-
 .../intel/boards/kbl_rt5663_rt5514_max98927.c |   5 +-
 .../mediatek/mt8173/mt8173-rt5650-rt5514.c    |   5 +-
 .../mediatek/mt8173/mt8173-rt5650-rt5676.c    |   5 +-
 sound/soc/mediatek/mt8173/mt8173-rt5650.c     |   5 +-
 sound/soc/meson/axg-card.c                    |   6 +-
 sound/soc/soc-core.c                          |  38 ++---
 sound/soc/soc-dapm.c                          |  14 +-
 sound/soc/soc-pcm.c                           | 154 ++++++++----------
 10 files changed, 118 insertions(+), 126 deletions(-)
diff mbox series

Patch

diff --git a/include/sound/soc.h b/include/sound/soc.h
index ce42c578fe82..6b68b31e3140 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1158,6 +1158,13 @@  struct snd_soc_pcm_runtime {
 	unsigned int dev_registered:1;
 	unsigned int pop_wait:1;
 };
+#define for_each_rtd_codec_dai(rtd, i, dai)\
+	for ((i) = 0;						       \
+	     ((i) < rtd->num_codecs) && ((dai) = rtd->codec_dais[i]); \
+	     (i)++)
+#define for_each_rtd_codec_dai_reverse(rtd, i, dai)				\
+	for (; ((i--) >= 0) && ((dai) = rtd->codec_dais[i]);)
+
 
 /* mixer control */
 struct soc_mixer_control {
diff --git a/sound/soc/intel/boards/kbl_rt5663_max98927.c b/sound/soc/intel/boards/kbl_rt5663_max98927.c
index 21a6490746a6..99e1320c485f 100644
--- a/sound/soc/intel/boards/kbl_rt5663_max98927.c
+++ b/sound/soc/intel/boards/kbl_rt5663_max98927.c
@@ -488,11 +488,10 @@  static int kabylake_ssp0_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_dai *codec_dai;
 	int ret = 0, j;
 
-	for (j = 0; j < rtd->num_codecs; j++) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
-
+	for_each_rtd_codec_dai(rtd, j, codec_dai) {
 		if (!strcmp(codec_dai->component->name, MAXIM_DEV0_NAME)) {
 			/*
 			 * Use channel 4 and 5 for the first amp
diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
index a892b37eab7c..a737c915d46a 100644
--- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
+++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
@@ -353,11 +353,10 @@  static int kabylake_ssp0_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_dai *codec_dai;
 	int ret = 0, j;
 
-	for (j = 0; j < rtd->num_codecs; j++) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
-
+	for_each_rtd_codec_dai(rtd, j, codec_dai) {
 		if (!strcmp(codec_dai->component->name, RT5514_DEV_NAME)) {
 			ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0, 8, 16);
 			if (ret < 0) {
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
index 582174d98c6c..5b4e90180827 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
@@ -44,11 +44,10 @@  static int mt8173_rt5650_rt5514_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_dai *codec_dai;
 	int i, ret;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
-
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		/* pll from mclk 12.288M */
 		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,
 					  params_rate(params) * 512);
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
index b3670c8a5b8d..82675ed057de 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
@@ -48,11 +48,10 @@  static int mt8173_rt5650_rt5676_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_dai *codec_dai;
 	int i, ret;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
-
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		/* pll from mclk 12.288M */
 		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,
 					  params_rate(params) * 512);
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
index 7a89b4aad182..ef05fbc40c32 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
@@ -59,6 +59,7 @@  static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	unsigned int mclk_clock;
+	struct snd_soc_dai *codec_dai;
 	int i, ret;
 
 	switch (mt8173_rt5650_priv.pll_from) {
@@ -76,9 +77,7 @@  static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
 		break;
 	}
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
-
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		/* pll from mclk */
 		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
 					  params_rate(params) * 512);
diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 3e68f1aa68ff..197e10a96e28 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -168,8 +168,7 @@  static int axg_card_tdm_be_hw_params(struct snd_pcm_substream *substream,
 	if (be->mclk_fs) {
 		mclk = params_rate(params) * be->mclk_fs;
 
-		for (i = 0; i < rtd->num_codecs; i++) {
-			codec_dai = rtd->codec_dais[i];
+		for_each_rtd_codec_dai(rtd, i, codec_dai) {
 			ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
 						     SND_SOC_CLOCK_IN);
 			if (ret && ret != -ENOTSUPP)
@@ -197,8 +196,7 @@  static int axg_card_tdm_dai_init(struct snd_soc_pcm_runtime *rtd)
 	struct snd_soc_dai *codec_dai;
 	int ret, i;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		ret = snd_soc_dai_set_tdm_slot(codec_dai,
 					       be->codec_masks[i].tx,
 					       be->codec_masks[i].rx,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index eeab492e954f..390da15c4a8b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -452,12 +452,12 @@  int snd_soc_suspend(struct device *dev)
 
 	/* mute any active DACs */
 	list_for_each_entry(rtd, &card->rtd_list, list) {
+		struct snd_soc_dai *dai;
 
 		if (rtd->dai_link->ignore_suspend)
 			continue;
 
-		for (i = 0; i < rtd->num_codecs; i++) {
-			struct snd_soc_dai *dai = rtd->codec_dais[i];
+		for_each_rtd_codec_dai(rtd, i, dai) {
 			struct snd_soc_dai_driver *drv = dai->driver;
 
 			if (drv->ops->digital_mute && dai->playback_active)
@@ -625,12 +625,12 @@  static void soc_resume_deferred(struct work_struct *work)
 
 	/* unmute any active DACs */
 	list_for_each_entry(rtd, &card->rtd_list, list) {
+		struct snd_soc_dai *dai;
 
 		if (rtd->dai_link->ignore_suspend)
 			continue;
 
-		for (i = 0; i < rtd->num_codecs; i++) {
-			struct snd_soc_dai *dai = rtd->codec_dais[i];
+		for_each_rtd_codec_dai(rtd, i, dai) {
 			struct snd_soc_dai_driver *drv = dai->driver;
 
 			if (drv->ops->digital_mute && dai->playback_active)
@@ -674,15 +674,14 @@  int snd_soc_resume(struct device *dev)
 
 	/* activate pins from sleep state */
 	list_for_each_entry(rtd, &card->rtd_list, list) {
-		struct snd_soc_dai **codec_dais = rtd->codec_dais;
+		struct snd_soc_dai *codec_dai;
 		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 		int j;
 
 		if (cpu_dai->active)
 			pinctrl_pm_select_default_state(cpu_dai->dev);
 
-		for (j = 0; j < rtd->num_codecs; j++) {
-			struct snd_soc_dai *codec_dai = codec_dais[j];
+		for_each_rtd_codec_dai(rtd, j, codec_dai) {
 			if (codec_dai->active)
 				pinctrl_pm_select_default_state(codec_dai->dev);
 		}
@@ -877,6 +876,7 @@  static int soc_bind_dai_link(struct snd_soc_card *card,
 	rtd->num_codecs = dai_link->num_codecs;
 
 	/* Find CODEC from registered CODECs */
+	/* we can use for_each_rtd_codec_dai() after this */
 	codec_dais = rtd->codec_dais;
 	for (i = 0; i < rtd->num_codecs; i++) {
 		codec_dais[i] = snd_soc_find_dai(&codecs[i]);
@@ -959,6 +959,7 @@  static void soc_remove_link_dais(struct snd_soc_card *card,
 		struct snd_soc_pcm_runtime *rtd, int order)
 {
 	int i;
+	struct snd_soc_dai *codec_dai;
 
 	/* unregister the rtd device */
 	if (rtd->dev_registered) {
@@ -967,8 +968,8 @@  static void soc_remove_link_dais(struct snd_soc_card *card,
 	}
 
 	/* remove the CODEC DAI */
-	for (i = 0; i < rtd->num_codecs; i++)
-		soc_remove_dai(rtd->codec_dais[i], order);
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
+		soc_remove_dai(codec_dai, order);
 
 	soc_remove_dai(rtd->cpu_dai, order);
 }
@@ -1511,6 +1512,7 @@  static int soc_probe_link_dais(struct snd_soc_card *card,
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_component *component;
+	struct snd_soc_dai *codec_dai;
 	int i, ret, num;
 
 	dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
@@ -1524,8 +1526,8 @@  static int soc_probe_link_dais(struct snd_soc_card *card,
 		return ret;
 
 	/* probe the CODEC DAI */
-	for (i = 0; i < rtd->num_codecs; i++) {
-		ret = soc_probe_dai(rtd->codec_dais[i], order);
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		ret = soc_probe_dai(codec_dai, order);
 		if (ret)
 			return ret;
 	}
@@ -1712,14 +1714,12 @@  static void soc_remove_aux_devices(struct snd_soc_card *card)
 int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
 	unsigned int dai_fmt)
 {
-	struct snd_soc_dai **codec_dais = rtd->codec_dais;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai;
 	unsigned int i;
 	int ret;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		struct snd_soc_dai *codec_dai = codec_dais[i];
-
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
 		if (ret != 0 && ret != -ENOTSUPP) {
 			dev_warn(codec_dai->dev,
@@ -2266,11 +2266,11 @@  int snd_soc_poweroff(struct device *dev)
 	/* deactivate pins to sleep state */
 	list_for_each_entry(rtd, &card->rtd_list, list) {
 		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+		struct snd_soc_dai *codec_dai;
 		int i;
 
 		pinctrl_pm_select_sleep_state(cpu_dai->dev);
-		for (i = 0; i < rtd->num_codecs; i++) {
-			struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
+		for_each_rtd_codec_dai(rtd, i, codec_dai) {
 			pinctrl_pm_select_sleep_state(codec_dai->dev);
 		}
 	}
@@ -2776,10 +2776,10 @@  int snd_soc_register_card(struct snd_soc_card *card)
 	/* deactivate pins to sleep state */
 	list_for_each_entry(rtd, &card->rtd_list, list)  {
 		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+		struct snd_soc_dai *codec_dai;
 		int j;
 
-		for (j = 0; j < rtd->num_codecs; j++) {
-			struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
+		for_each_rtd_codec_dai(rtd, j, codec_dai) {
 			if (!codec_dai->active)
 				pinctrl_pm_select_sleep_state(codec_dai->dev);
 		}
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 9feccd2e7c11..0a738cb439be 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2370,12 +2370,13 @@  static ssize_t dapm_widget_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
+	struct snd_soc_dai *codec_dai;
 	int i, count = 0;
 
 	mutex_lock(&rtd->card->dapm_mutex);
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component;
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		struct snd_soc_component *cmpnt = codec_dai->component;
 
 		count += dapm_widget_show_component(cmpnt, buf + count);
 	}
@@ -4110,11 +4111,11 @@  static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
 					  struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai;
 	struct snd_soc_dapm_widget *sink, *source;
 	int i;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 
 		/* connect BE DAI playback if widgets are valid */
 		if (codec_dai->playback_widget && cpu_dai->playback_widget) {
@@ -4202,11 +4203,12 @@  void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
 static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
 	int event)
 {
+	struct snd_soc_dai *codec_dai;
 	int i;
 
 	soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event);
-	for (i = 0; i < rtd->num_codecs; i++)
-		soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event);
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
+		soc_dapm_dai_stream_event(codec_dai, stream, event);
 
 	dapm_power_widgets(rtd->card, event);
 }
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index eb6f4f1b65a9..79f5dd541d29 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -59,25 +59,26 @@  static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream)
 void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
 {
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai;
 	int i;
 
 	lockdep_assert_held(&rtd->pcm_mutex);
 
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		cpu_dai->playback_active++;
-		for (i = 0; i < rtd->num_codecs; i++)
-			rtd->codec_dais[i]->playback_active++;
+		for_each_rtd_codec_dai(rtd, i, codec_dai)
+			codec_dai->playback_active++;
 	} else {
 		cpu_dai->capture_active++;
-		for (i = 0; i < rtd->num_codecs; i++)
-			rtd->codec_dais[i]->capture_active++;
+		for_each_rtd_codec_dai(rtd, i, codec_dai)
+			codec_dai->capture_active++;
 	}
 
 	cpu_dai->active++;
 	cpu_dai->component->active++;
-	for (i = 0; i < rtd->num_codecs; i++) {
-		rtd->codec_dais[i]->active++;
-		rtd->codec_dais[i]->component->active++;
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		codec_dai->active++;
+		codec_dai->component->active++;
 	}
 }
 
@@ -94,25 +95,26 @@  void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
 {
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai;
 	int i;
 
 	lockdep_assert_held(&rtd->pcm_mutex);
 
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		cpu_dai->playback_active--;
-		for (i = 0; i < rtd->num_codecs; i++)
-			rtd->codec_dais[i]->playback_active--;
+		for_each_rtd_codec_dai(rtd, i, codec_dai)
+			codec_dai->playback_active--;
 	} else {
 		cpu_dai->capture_active--;
-		for (i = 0; i < rtd->num_codecs; i++)
-			rtd->codec_dais[i]->capture_active--;
+		for_each_rtd_codec_dai(rtd, i, codec_dai)
+			codec_dai->capture_active--;
 	}
 
 	cpu_dai->active--;
 	cpu_dai->component->active--;
-	for (i = 0; i < rtd->num_codecs; i++) {
-		rtd->codec_dais[i]->component->active--;
-		rtd->codec_dais[i]->active--;
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		codec_dai->component->active--;
+		codec_dai->active--;
 	}
 }
 
@@ -253,6 +255,7 @@  static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai;
 	unsigned int rate, channels, sample_bits, symmetry, i;
 
 	rate = params_rate(params);
@@ -263,8 +266,8 @@  static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 	symmetry = cpu_dai->driver->symmetric_rates ||
 		rtd->dai_link->symmetric_rates;
 
-	for (i = 0; i < rtd->num_codecs; i++)
-		symmetry |= rtd->codec_dais[i]->driver->symmetric_rates;
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
+		symmetry |= codec_dai->driver->symmetric_rates;
 
 	if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) {
 		dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n",
@@ -275,8 +278,8 @@  static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 	symmetry = cpu_dai->driver->symmetric_channels ||
 		rtd->dai_link->symmetric_channels;
 
-	for (i = 0; i < rtd->num_codecs; i++)
-		symmetry |= rtd->codec_dais[i]->driver->symmetric_channels;
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
+		symmetry |= codec_dai->driver->symmetric_channels;
 
 	if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) {
 		dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n",
@@ -287,8 +290,8 @@  static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 	symmetry = cpu_dai->driver->symmetric_samplebits ||
 		rtd->dai_link->symmetric_samplebits;
 
-	for (i = 0; i < rtd->num_codecs; i++)
-		symmetry |= rtd->codec_dais[i]->driver->symmetric_samplebits;
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
+		symmetry |= codec_dai->driver->symmetric_samplebits;
 
 	if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) {
 		dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n",
@@ -304,17 +307,18 @@  static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver;
 	struct snd_soc_dai_link *link = rtd->dai_link;
+	struct snd_soc_dai *codec_dai;
 	unsigned int symmetry, i;
 
 	symmetry = cpu_driver->symmetric_rates || link->symmetric_rates ||
 		cpu_driver->symmetric_channels || link->symmetric_channels ||
 		cpu_driver->symmetric_samplebits || link->symmetric_samplebits;
 
-	for (i = 0; i < rtd->num_codecs; i++)
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
 		symmetry = symmetry ||
-			rtd->codec_dais[i]->driver->symmetric_rates ||
-			rtd->codec_dais[i]->driver->symmetric_channels ||
-			rtd->codec_dais[i]->driver->symmetric_samplebits;
+			codec_dai->driver->symmetric_rates ||
+			codec_dai->driver->symmetric_channels ||
+			codec_dai->driver->symmetric_samplebits;
 
 	return symmetry;
 }
@@ -342,8 +346,7 @@  static void soc_pcm_apply_msb(struct snd_pcm_substream *substream)
 	unsigned int bits = 0, cpu_bits;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		for (i = 0; i < rtd->num_codecs; i++) {
-			codec_dai = rtd->codec_dais[i];
+		for_each_rtd_codec_dai(rtd, i, codec_dai) {
 			if (codec_dai->driver->playback.sig_bits == 0) {
 				bits = 0;
 				break;
@@ -352,8 +355,7 @@  static void soc_pcm_apply_msb(struct snd_pcm_substream *substream)
 		}
 		cpu_bits = cpu_dai->driver->playback.sig_bits;
 	} else {
-		for (i = 0; i < rtd->num_codecs; i++) {
-			codec_dai = rtd->codec_dais[i];
+		for_each_rtd_codec_dai(rtd, i, codec_dai) {
 			if (codec_dai->driver->capture.sig_bits == 0) {
 				bits = 0;
 				break;
@@ -372,6 +374,7 @@  static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_pcm_hardware *hw = &runtime->hw;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai;
 	struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver;
 	struct snd_soc_dai_driver *codec_dai_drv;
 	struct snd_soc_pcm_stream *codec_stream;
@@ -388,7 +391,7 @@  static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
 		cpu_stream = &cpu_dai_drv->capture;
 
 	/* first calculate min/max only for CODECs in the DAI link */
-	for (i = 0; i < rtd->num_codecs; i++) {
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 
 		/*
 		 * Skip CODECs which don't support the current stream type.
@@ -399,11 +402,11 @@  static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
 		 * bailed out on a higher level, since there would be no
 		 * CODEC to support the transfer direction in that case.
 		 */
-		if (!snd_soc_dai_stream_valid(rtd->codec_dais[i],
+		if (!snd_soc_dai_stream_valid(codec_dai,
 					      substream->stream))
 			continue;
 
-		codec_dai_drv = rtd->codec_dais[i]->driver;
+		codec_dai_drv = codec_dai->driver;
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 			codec_stream = &codec_dai_drv->playback;
 		else
@@ -482,8 +485,8 @@  static int soc_pcm_open(struct snd_pcm_substream *substream)
 	int i, ret = 0;
 
 	pinctrl_pm_select_default_state(cpu_dai->dev);
-	for (i = 0; i < rtd->num_codecs; i++)
-		pinctrl_pm_select_default_state(rtd->codec_dais[i]->dev);
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
+		pinctrl_pm_select_default_state(codec_dai->dev);
 
 	for_each_rtdcom(rtd, rtdcom) {
 		component = rtdcom->component;
@@ -520,8 +523,7 @@  static int soc_pcm_open(struct snd_pcm_substream *substream)
 	}
 	component = NULL;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->startup) {
 			ret = codec_dai->driver->ops->startup(substream,
 							      codec_dai);
@@ -588,10 +590,9 @@  static int soc_pcm_open(struct snd_pcm_substream *substream)
 			goto config_err;
 	}
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		if (rtd->codec_dais[i]->active) {
-			ret = soc_pcm_apply_symmetry(substream,
-						     rtd->codec_dais[i]);
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if (codec_dai->active) {
+			ret = soc_pcm_apply_symmetry(substream, codec_dai);
 			if (ret != 0)
 				goto config_err;
 		}
@@ -620,8 +621,7 @@  static int soc_pcm_open(struct snd_pcm_substream *substream)
 	i = rtd->num_codecs;
 
 codec_dai_err:
-	while (--i >= 0) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai_reverse(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->shutdown)
 			codec_dai->driver->ops->shutdown(substream, codec_dai);
 	}
@@ -641,9 +641,9 @@  static int soc_pcm_open(struct snd_pcm_substream *substream)
 		pm_runtime_put_autosuspend(component->dev);
 	}
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		if (!rtd->codec_dais[i]->active)
-			pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev);
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if (!codec_dai->active)
+			pinctrl_pm_select_sleep_state(codec_dai->dev);
 	}
 	if (!cpu_dai->active)
 		pinctrl_pm_select_sleep_state(cpu_dai->dev);
@@ -701,8 +701,7 @@  static int soc_pcm_close(struct snd_pcm_substream *substream)
 	if (!cpu_dai->active)
 		cpu_dai->rate = 0;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (!codec_dai->active)
 			codec_dai->rate = 0;
 	}
@@ -712,8 +711,7 @@  static int soc_pcm_close(struct snd_pcm_substream *substream)
 	if (cpu_dai->driver->ops->shutdown)
 		cpu_dai->driver->ops->shutdown(substream, cpu_dai);
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->shutdown)
 			codec_dai->driver->ops->shutdown(substream, codec_dai);
 	}
@@ -751,9 +749,9 @@  static int soc_pcm_close(struct snd_pcm_substream *substream)
 		pm_runtime_put_autosuspend(component->dev);
 	}
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		if (!rtd->codec_dais[i]->active)
-			pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev);
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if (!codec_dai->active)
+			pinctrl_pm_select_sleep_state(codec_dai->dev);
 	}
 	if (!cpu_dai->active)
 		pinctrl_pm_select_sleep_state(cpu_dai->dev);
@@ -801,8 +799,7 @@  static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->prepare) {
 			ret = codec_dai->driver->ops->prepare(substream,
 							      codec_dai);
@@ -834,8 +831,8 @@  static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 	snd_soc_dapm_stream_event(rtd, substream->stream,
 			SND_SOC_DAPM_STREAM_START);
 
-	for (i = 0; i < rtd->num_codecs; i++)
-		snd_soc_dai_digital_mute(rtd->codec_dais[i], 0,
+	for_each_rtd_codec_dai(rtd, i, codec_dai)
+		snd_soc_dai_digital_mute(codec_dai, 0,
 					 substream->stream);
 	snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream);
 
@@ -920,6 +917,7 @@  static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_component *component;
 	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai;
 	int i, ret = 0;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -932,8 +930,7 @@  static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		}
 	}
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		struct snd_pcm_hw_params codec_params;
 
 		/*
@@ -1018,8 +1015,7 @@  static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 	i = rtd->num_codecs;
 
 codec_err:
-	while (--i >= 0) {
-		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai_reverse(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 		codec_dai->rate = 0;
@@ -1052,8 +1048,7 @@  static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 		cpu_dai->sample_bits = 0;
 	}
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->active == 1) {
 			codec_dai->rate = 0;
 			codec_dai->channels = 0;
@@ -1062,10 +1057,10 @@  static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 	}
 
 	/* apply codec digital mute */
-	for (i = 0; i < rtd->num_codecs; i++) {
-		if ((playback && rtd->codec_dais[i]->playback_active == 1) ||
-		    (!playback && rtd->codec_dais[i]->capture_active == 1))
-			snd_soc_dai_digital_mute(rtd->codec_dais[i], 1,
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if ((playback && codec_dai->playback_active == 1) ||
+		    (!playback && codec_dai->capture_active == 1))
+			snd_soc_dai_digital_mute(codec_dai, 1,
 						 substream->stream);
 	}
 
@@ -1077,8 +1072,7 @@  static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 	soc_pcm_components_hw_free(substream, NULL);
 
 	/* now free hw params for the DAIs  */
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 	}
@@ -1099,8 +1093,7 @@  static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	struct snd_soc_dai *codec_dai;
 	int i, ret;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->trigger) {
 			ret = codec_dai->driver->ops->trigger(substream,
 							      cmd, codec_dai);
@@ -1144,8 +1137,7 @@  static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
 	struct snd_soc_dai *codec_dai;
 	int i, ret;
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->bespoke_trigger) {
 			ret = codec_dai->driver->ops->bespoke_trigger(substream,
 								cmd, codec_dai);
@@ -1199,8 +1191,7 @@  static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
 	if (cpu_dai->driver->ops->delay)
 		delay += cpu_dai->driver->ops->delay(substream, cpu_dai);
 
-	for (i = 0; i < rtd->num_codecs; i++) {
-		codec_dai = rtd->codec_dais[i];
+	for_each_rtd_codec_dai(rtd, i, codec_dai) {
 		if (codec_dai->driver->ops->delay)
 			codec_delay = max(codec_delay,
 					codec_dai->driver->ops->delay(substream,
@@ -1388,6 +1379,7 @@  static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget,
 {
 	struct snd_soc_card *card = widget->dapm->card;
 	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dai *dai;
 	int i;
 
 	if (dir == SND_SOC_DAPM_DIR_OUT) {
@@ -1398,8 +1390,7 @@  static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget,
 			if (rtd->cpu_dai->playback_widget == widget)
 				return true;
 
-			for (i = 0; i < rtd->num_codecs; ++i) {
-				struct snd_soc_dai *dai = rtd->codec_dais[i];
+			for_each_rtd_codec_dai(rtd, i, dai) {
 				if (dai->playback_widget == widget)
 					return true;
 			}
@@ -1412,8 +1403,7 @@  static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget,
 			if (rtd->cpu_dai->capture_widget == widget)
 				return true;
 
-			for (i = 0; i < rtd->num_codecs; ++i) {
-				struct snd_soc_dai *dai = rtd->codec_dais[i];
+			for_each_rtd_codec_dai(rtd, i, dai) {
 				if (dai->capture_widget == widget)
 					return true;
 			}
@@ -1907,6 +1897,7 @@  static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
 		struct snd_pcm_substream *be_substream =
 			snd_soc_dpcm_get_substream(be, stream);
 		struct snd_soc_pcm_runtime *rtd = be_substream->private_data;
+		struct snd_soc_dai *codec_dai;
 		int i;
 
 		if (rtd->dai_link->be_hw_params_fixup)
@@ -1923,10 +1914,10 @@  static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
 				return err;
 		}
 
-		for (i = 0; i < rtd->num_codecs; i++) {
-			if (rtd->codec_dais[i]->active) {
+		for_each_rtd_codec_dai(rtd, i, codec_dai) {
+			if (codec_dai->active) {
 				err = soc_pcm_apply_symmetry(fe_substream,
-							     rtd->codec_dais[i]);
+							     codec_dai);
 				if (err < 0)
 					return err;
 			}
@@ -3041,8 +3032,7 @@  int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 		playback = rtd->dai_link->dpcm_playback;
 		capture = rtd->dai_link->dpcm_capture;
 	} else {
-		for (i = 0; i < rtd->num_codecs; i++) {
-			codec_dai = rtd->codec_dais[i];
+		for_each_rtd_codec_dai(rtd, i, codec_dai) {
 			if (codec_dai->driver->playback.channels_min)
 				playback = 1;
 			if (codec_dai->driver->capture.channels_min)