1 files changed, 32 insertions, 30 deletions

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index f6d1b2e117..77ee103b7c 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -292,6 +292,7 @@ static void dpcm_set_be_update_state(struct snd_soc_pcm_runtime *be,
 void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd,
 			    int stream, int action)
 {
+	struct snd_soc_component *component;
 	struct snd_soc_dai *dai;
 	int i;
 
@@ -299,6 +300,13 @@ void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd,
 
 	for_each_rtd_dais(rtd, i, dai)
 		snd_soc_dai_action(dai, stream, action);
+
+	/* Increments/Decrements the active count for components without DAIs */
+	for_each_rtd_components(rtd, i, component) {
+		if (component->num_dai)
+			continue;
+		component->active += action;
+	}
 }
 EXPORT_SYMBOL_GPL(snd_soc_runtime_action);
 
@@ -554,6 +562,12 @@ static void soc_pcm_hw_update_format(struct snd_pcm_hardware *hw,
 	hw->formats &= p->formats;
 }
 
+static void soc_pcm_hw_update_subformat(struct snd_pcm_hardware *hw,
+					struct snd_soc_pcm_stream *p)
+{
+	hw->subformats &= p->subformats;
+}
+
 /**
  * snd_soc_runtime_calc_hw() - Calculate hw limits for a PCM stream
  * @rtd: ASoC PCM runtime
@@ -592,6 +606,7 @@ int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd,
 		soc_pcm_hw_update_chan(hw, cpu_stream);
 		soc_pcm_hw_update_rate(hw, cpu_stream);
 		soc_pcm_hw_update_format(hw, cpu_stream);
+		soc_pcm_hw_update_subformat(hw, cpu_stream);
 	}
 	cpu_chan_min = hw->channels_min;
 	cpu_chan_max = hw->channels_max;
@@ -613,6 +628,7 @@ int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd,
 		soc_pcm_hw_update_chan(hw, codec_stream);
 		soc_pcm_hw_update_rate(hw, codec_stream);
 		soc_pcm_hw_update_format(hw, codec_stream);
+		soc_pcm_hw_update_subformat(hw, codec_stream);
 	}
 
 	/* Verify both a valid CPU DAI and a valid CODEC DAI were found */
@@ -1047,6 +1063,7 @@ static int __soc_pcm_hw_params(struct snd_soc_pcm_runtime *rtd,
 	}
 
 	for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
+		struct snd_soc_dai_link_ch_map *ch_maps;
 		unsigned int ch_mask = 0;
 		int j;
 
@@ -1060,22 +1077,20 @@ static int __soc_pcm_hw_params(struct snd_soc_pcm_runtime *rtd,
 		/* copy params for each cpu */
 		tmp_params = *params;
 
-		if (!rtd->dai_link->codec_ch_maps)
-			goto hw_params;
 		/*
 		 * construct cpu channel mask by combining ch_mask of each
 		 * codec which maps to the cpu.
+		 * see
+		 *	soc.h :: [dai_link->ch_maps Image sample]
 		 */
-		for_each_rtd_codec_dais(rtd, j, codec_dai) {
-			if (rtd->dai_link->codec_ch_maps[j].connected_cpu_id == i)
-				ch_mask |= rtd->dai_link->codec_ch_maps[j].ch_mask;
-		}
+		for_each_rtd_ch_maps(rtd, j, ch_maps)
+			if (ch_maps->cpu == i)
+				ch_mask |= ch_maps->ch_mask;
 
 		/* fixup cpu channel number */
 		if (ch_mask)
 			soc_pcm_codec_params_fixup(&tmp_params, ch_mask);
 
-hw_params:
 		ret = snd_soc_dai_hw_params(cpu_dai, substream, &tmp_params);
 		if (ret < 0)
 			goto out;
@@ -1710,6 +1725,7 @@ static void dpcm_runtime_setup_fe(struct snd_pcm_substream *substream)
 		soc_pcm_hw_update_rate(hw, cpu_stream);
 		soc_pcm_hw_update_chan(hw, cpu_stream);
 		soc_pcm_hw_update_format(hw, cpu_stream);
+		soc_pcm_hw_update_subformat(hw, cpu_stream);
 	}
 
 }
@@ -1747,6 +1763,7 @@ static void dpcm_runtime_setup_be_format(struct snd_pcm_substream *substream)
 			codec_stream = snd_soc_dai_get_pcm_stream(dai, stream);
 
 			soc_pcm_hw_update_format(hw, codec_stream);
+			soc_pcm_hw_update_subformat(hw, codec_stream);
 		}
 	}
 }
@@ -2823,35 +2840,20 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd,
 			}
 		}
 	} else {
+		struct snd_soc_dai_link_ch_map *ch_maps;
 		struct snd_soc_dai *codec_dai;
 
 		/* Adapt stream for codec2codec links */
 		int cpu_capture  = snd_soc_get_stream_cpu(dai_link, SNDRV_PCM_STREAM_CAPTURE);
 		int cpu_playback = snd_soc_get_stream_cpu(dai_link, SNDRV_PCM_STREAM_PLAYBACK);
 
-		for_each_rtd_codec_dais(rtd, i, codec_dai) {
-			if (dai_link->num_cpus == 1) {
-				cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
-			} else if (dai_link->num_cpus == dai_link->num_codecs) {
-				cpu_dai = snd_soc_rtd_to_cpu(rtd, i);
-			} else if (rtd->dai_link->num_codecs > rtd->dai_link->num_cpus) {
-				int cpu_id;
-
-				if (!rtd->dai_link->codec_ch_maps) {
-					dev_err(rtd->card->dev, "%s: no codec channel mapping table provided\n",
-						__func__);
-					return -EINVAL;
-				}
-
-				cpu_id = rtd->dai_link->codec_ch_maps[i].connected_cpu_id;
-				cpu_dai = snd_soc_rtd_to_cpu(rtd, cpu_id);
-			} else {
-				dev_err(rtd->card->dev,
-					"%s codec number %d < cpu number %d is not supported\n",
-					__func__, rtd->dai_link->num_codecs,
-					rtd->dai_link->num_cpus);
-				return -EINVAL;
-			}
+		/*
+		 * see
+		 *	soc.h :: [dai_link->ch_maps Image sample]
+		 */
+		for_each_rtd_ch_maps(rtd, i, ch_maps) {
+			cpu_dai	  = snd_soc_rtd_to_cpu(rtd,   ch_maps->cpu);
+			codec_dai = snd_soc_rtd_to_codec(rtd, ch_maps->codec);
 
 			if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) &&
 			    snd_soc_dai_stream_valid(cpu_dai,   cpu_playback))