1 files changed, 416 insertions, 46 deletions

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 94b88b897c3b..8075856668c2 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -133,16 +133,25 @@ void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
  */
 bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
 	int i;
 	bool ignore = true;
 
 	if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time)
 		return true;
 
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		ignore &= !component->driver->pmdown_time;
+	}
+
+	/* this will be removed */
 	for (i = 0; i < rtd->num_codecs; i++)
 		ignore &= rtd->codec_dais[i]->component->ignore_pmdown_time;
 
-	return rtd->cpu_dai->component->ignore_pmdown_time && ignore;
+	return ignore;
 }
 
 /**
@@ -459,7 +468,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_dai *codec_dai;
 	const char *codec_dai_name = "multicodec";
-	int i, ret = 0;
+	int i, ret = 0, __ret;
 
 	pinctrl_pm_select_default_state(cpu_dai->dev);
 	for (i = 0; i < rtd->num_codecs; i++)
@@ -474,7 +483,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
 	/* startup the audio subsystem */
-	if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) {
+	if (cpu_dai->driver->ops->startup) {
 		ret = cpu_dai->driver->ops->startup(substream, cpu_dai);
 		if (ret < 0) {
 			dev_err(cpu_dai->dev, "ASoC: can't open interface"
@@ -483,7 +492,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (platform->driver->ops && platform->driver->ops->open) {
+	if (platform && platform->driver->ops && platform->driver->ops->open) {
 		ret = platform->driver->ops->open(substream);
 		if (ret < 0) {
 			dev_err(platform->dev, "ASoC: can't open platform"
@@ -492,9 +501,32 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		}
 	}
 
+	ret = 0;
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->open)
+			continue;
+
+		__ret = component->driver->ops->open(substream);
+		if (__ret < 0) {
+			dev_err(component->dev,
+				"ASoC: can't open component %s: %d\n",
+				component->name, ret);
+			ret = __ret;
+		}
+	}
+	if (ret < 0)
+		goto component_err;
+
 	for (i = 0; i < rtd->num_codecs; i++) {
 		codec_dai = rtd->codec_dais[i];
-		if (codec_dai->driver->ops && codec_dai->driver->ops->startup) {
+		if (codec_dai->driver->ops->startup) {
 			ret = codec_dai->driver->ops->startup(substream,
 							      codec_dai);
 			if (ret < 0) {
@@ -511,7 +543,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 			codec_dai->rx_mask = 0;
 	}
 
-	if (rtd->dai_link->ops && rtd->dai_link->ops->startup) {
+	if (rtd->dai_link->ops->startup) {
 		ret = rtd->dai_link->ops->startup(substream);
 		if (ret < 0) {
 			pr_err("ASoC: %s startup failed: %d\n",
@@ -585,7 +617,7 @@ dynamic:
 	return 0;
 
 config_err:
-	if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown)
+	if (rtd->dai_link->ops->shutdown)
 		rtd->dai_link->ops->shutdown(substream);
 
 machine_err:
@@ -598,7 +630,22 @@ codec_dai_err:
 			codec_dai->driver->ops->shutdown(substream, codec_dai);
 	}
 
-	if (platform->driver->ops && platform->driver->ops->close)
+component_err:
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->close)
+			continue;
+
+		component->driver->ops->close(substream);
+	}
+
+	if (platform && platform->driver->ops && platform->driver->ops->close)
 		platform->driver->ops->close(substream);
 
 platform_err:
@@ -692,12 +739,26 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 			codec_dai->driver->ops->shutdown(substream, codec_dai);
 	}
 
-	if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown)
+	if (rtd->dai_link->ops->shutdown)
 		rtd->dai_link->ops->shutdown(substream);
 
-	if (platform->driver->ops && platform->driver->ops->close)
+	if (platform && platform->driver->ops && platform->driver->ops->close)
 		platform->driver->ops->close(substream);
 
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->close)
+			continue;
+
+		component->driver->ops->close(substream);
+	}
+
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
 			/* powered down playback stream now */
@@ -745,13 +806,15 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	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);
 
-	if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) {
+	if (rtd->dai_link->ops->prepare) {
 		ret = rtd->dai_link->ops->prepare(substream);
 		if (ret < 0) {
 			dev_err(rtd->card->dev, "ASoC: machine prepare error:"
@@ -760,7 +823,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (platform->driver->ops && platform->driver->ops->prepare) {
+	if (platform && platform->driver->ops && platform->driver->ops->prepare) {
 		ret = platform->driver->ops->prepare(substream);
 		if (ret < 0) {
 			dev_err(platform->dev, "ASoC: platform prepare error:"
@@ -769,9 +832,28 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->prepare)
+			continue;
+
+		ret = component->driver->ops->prepare(substream);
+		if (ret < 0) {
+			dev_err(component->dev,
+				"ASoC: platform prepare error: %d\n", ret);
+			goto out;
+		}
+	}
+
 	for (i = 0; i < rtd->num_codecs; i++) {
 		codec_dai = rtd->codec_dais[i];
-		if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) {
+		if (codec_dai->driver->ops->prepare) {
 			ret = codec_dai->driver->ops->prepare(substream,
 							      codec_dai);
 			if (ret < 0) {
@@ -783,7 +865,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) {
+	if (cpu_dai->driver->ops->prepare) {
 		ret = cpu_dai->driver->ops->prepare(substream, cpu_dai);
 		if (ret < 0) {
 			dev_err(cpu_dai->dev,
@@ -829,7 +911,7 @@ int soc_dai_hw_params(struct snd_pcm_substream *substream,
 {
 	int ret;
 
-	if (dai->driver->ops && dai->driver->ops->hw_params) {
+	if (dai->driver->ops->hw_params) {
 		ret = dai->driver->ops->hw_params(substream, params, dai);
 		if (ret < 0) {
 			dev_err(dai->dev, "ASoC: can't set %s hw params: %d\n",
@@ -851,16 +933,13 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	int i, ret = 0;
+	int i, ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
-
-	ret = soc_pcm_params_symmetry(substream, params);
-	if (ret)
-		goto out;
-
-	if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) {
+	if (rtd->dai_link->ops->hw_params) {
 		ret = rtd->dai_link->ops->hw_params(substream, params);
 		if (ret < 0) {
 			dev_err(rtd->card->dev, "ASoC: machine hw_params"
@@ -915,7 +994,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 	if (ret < 0)
 		goto interface_err;
 
-	if (platform->driver->ops && platform->driver->ops->hw_params) {
+	if (platform && platform->driver->ops && platform->driver->ops->hw_params) {
 		ret = platform->driver->ops->hw_params(substream, params);
 		if (ret < 0) {
 			dev_err(platform->dev, "ASoC: %s hw params failed: %d\n",
@@ -924,18 +1003,62 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		}
 	}
 
+	ret = 0;
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->hw_params)
+			continue;
+
+		__ret = component->driver->ops->hw_params(substream, params);
+		if (__ret < 0) {
+			dev_err(component->dev,
+				"ASoC: %s hw params failed: %d\n",
+				component->name, ret);
+			ret = __ret;
+		}
+	}
+	if (ret < 0)
+		goto component_err;
+
 	/* store the parameters for each DAIs */
 	cpu_dai->rate = params_rate(params);
 	cpu_dai->channels = params_channels(params);
 	cpu_dai->sample_bits =
 		snd_pcm_format_physical_width(params_format(params));
 
+	ret = soc_pcm_params_symmetry(substream, params);
+        if (ret)
+		goto component_err;
 out:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 
+component_err:
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->hw_free)
+			continue;
+
+		component->driver->ops->hw_free(substream);
+	}
+
+	if (platform && platform->driver->ops && platform->driver->ops->hw_free)
+		platform->driver->ops->hw_free(substream);
+
 platform_err:
-	if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free)
+	if (cpu_dai->driver->ops->hw_free)
 		cpu_dai->driver->ops->hw_free(substream, cpu_dai);
 
 interface_err:
@@ -944,12 +1067,12 @@ interface_err:
 codec_err:
 	while (--i >= 0) {
 		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
-		if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free)
+		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 		codec_dai->rate = 0;
 	}
 
-	if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free)
+	if (rtd->dai_link->ops->hw_free)
 		rtd->dai_link->ops->hw_free(substream);
 
 	mutex_unlock(&rtd->pcm_mutex);
@@ -963,6 +1086,8 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	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;
 	bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
@@ -995,21 +1120,36 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 	}
 
 	/* free any machine hw params */
-	if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free)
+	if (rtd->dai_link->ops->hw_free)
 		rtd->dai_link->ops->hw_free(substream);
 
 	/* free any DMA resources */
-	if (platform->driver->ops && platform->driver->ops->hw_free)
+	if (platform && platform->driver->ops && platform->driver->ops->hw_free)
 		platform->driver->ops->hw_free(substream);
 
+	/* free any component resources */
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->hw_free)
+			continue;
+
+		component->driver->ops->hw_free(substream);
+	}
+
 	/* now free hw params for the DAIs  */
 	for (i = 0; i < rtd->num_codecs; i++) {
 		codec_dai = rtd->codec_dais[i];
-		if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free)
+		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 	}
 
-	if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free)
+	if (cpu_dai->driver->ops->hw_free)
 		cpu_dai->driver->ops->hw_free(substream, cpu_dai);
 
 	mutex_unlock(&rtd->pcm_mutex);
@@ -1020,13 +1160,15 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	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;
 
 	for (i = 0; i < rtd->num_codecs; i++) {
 		codec_dai = rtd->codec_dais[i];
-		if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) {
+		if (codec_dai->driver->ops->trigger) {
 			ret = codec_dai->driver->ops->trigger(substream,
 							      cmd, codec_dai);
 			if (ret < 0)
@@ -1034,19 +1176,35 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 		}
 	}
 
-	if (platform->driver->ops && platform->driver->ops->trigger) {
+	if (platform && platform->driver->ops && platform->driver->ops->trigger) {
 		ret = platform->driver->ops->trigger(substream, cmd);
 		if (ret < 0)
 			return ret;
 	}
 
-	if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) {
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->trigger)
+			continue;
+
+		ret = component->driver->ops->trigger(substream, cmd);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (cpu_dai->driver->ops->trigger) {
 		ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai);
 		if (ret < 0)
 			return ret;
 	}
 
-	if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) {
+	if (rtd->dai_link->ops->trigger) {
 		ret = rtd->dai_link->ops->trigger(substream, cmd);
 		if (ret < 0)
 			return ret;
@@ -1065,8 +1223,7 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
 
 	for (i = 0; i < rtd->num_codecs; i++) {
 		codec_dai = rtd->codec_dais[i];
-		if (codec_dai->driver->ops &&
-		    codec_dai->driver->ops->bespoke_trigger) {
+		if (codec_dai->driver->ops->bespoke_trigger) {
 			ret = codec_dai->driver->ops->bespoke_trigger(substream,
 								cmd, codec_dai);
 			if (ret < 0)
@@ -1074,7 +1231,7 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
 		}
 	}
 
-	if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) {
+	if (cpu_dai->driver->ops->bespoke_trigger) {
 		ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai);
 		if (ret < 0)
 			return ret;
@@ -1090,6 +1247,8 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	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;
 	struct snd_pcm_runtime *runtime = substream->runtime;
@@ -1098,15 +1257,31 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
 	snd_pcm_sframes_t codec_delay = 0;
 	int i;
 
-	if (platform->driver->ops && platform->driver->ops->pointer)
+	if (platform && platform->driver->ops && platform->driver->ops->pointer)
 		offset = platform->driver->ops->pointer(substream);
 
-	if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay)
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->pointer)
+			continue;
+
+		/* FIXME: use 1st pointer */
+		offset = component->driver->ops->pointer(substream);
+		break;
+	}
+
+	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];
-		if (codec_dai->driver->ops && codec_dai->driver->ops->delay)
+		if (codec_dai->driver->ops->delay)
 			codec_delay = max(codec_delay,
 					codec_dai->driver->ops->delay(substream,
 								    codec_dai));
@@ -2285,9 +2460,27 @@ static int soc_pcm_ioctl(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 
-	if (platform->driver->ops && platform->driver->ops->ioctl)
+	if (platform && platform->driver->ops && platform->driver->ops->ioctl)
 		return platform->driver->ops->ioctl(substream, cmd, arg);
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->ioctl)
+			continue;
+
+		/* FIXME: use 1st ioctl */
+		return component->driver->ops->ioctl(substream, cmd, arg);
+	}
+
 	return snd_pcm_lib_ioctl(substream, cmd, arg);
 }
 
@@ -2632,12 +2825,163 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream)
 	return ret;
 }
 
+static void soc_pcm_private_free(struct snd_pcm *pcm)
+{
+	struct snd_soc_pcm_runtime *rtd = pcm->private_data;
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		/* need to sync the delayed work before releasing resources */
+
+		flush_delayed_work(&rtd->delayed_work);
+		component = rtdcom->component;
+
+		if (component->pcm_free)
+			component->pcm_free(component, pcm);
+	}
+}
+
+static int soc_rtdcom_ack(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->ack)
+			continue;
+
+		/* FIXME. it returns 1st ask now */
+		return component->driver->ops->ack(substream);
+	}
+
+	return -EINVAL;
+}
+
+static int soc_rtdcom_copy_user(struct snd_pcm_substream *substream, int channel,
+				unsigned long pos, void __user *buf,
+				unsigned long bytes)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->copy_user)
+			continue;
+
+		/* FIXME. it returns 1st copy now */
+		return component->driver->ops->copy_user(substream, channel,
+							 pos, buf, bytes);
+	}
+
+	return -EINVAL;
+}
+
+static int soc_rtdcom_copy_kernel(struct snd_pcm_substream *substream, int channel,
+				  unsigned long pos, void *buf, unsigned long bytes)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->copy_kernel)
+			continue;
+
+		/* FIXME. it returns 1st copy now */
+		return component->driver->ops->copy_kernel(substream, channel,
+							   pos, buf, bytes);
+	}
+
+	return -EINVAL;
+}
+
+static int soc_rtdcom_fill_silence(struct snd_pcm_substream *substream, int channel,
+				   unsigned long pos, unsigned long bytes)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->fill_silence)
+			continue;
+
+		/* FIXME. it returns 1st silence now */
+		return component->driver->ops->fill_silence(substream, channel,
+							    pos, bytes);
+	}
+
+	return -EINVAL;
+}
+
+static struct page *soc_rtdcom_page(struct snd_pcm_substream *substream,
+				    unsigned long offset)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
+	struct page *page;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->page)
+			continue;
+
+		/* FIXME. it returns 1st page now */
+		page = component->driver->ops->page(substream, offset);
+		if (page)
+			return page;
+	}
+
+	return NULL;
+}
+
+static int soc_rtdcom_mmap(struct snd_pcm_substream *substream,
+			   struct vm_area_struct *vma)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_rtdcom_list *rtdcom;
+	struct snd_soc_component *component;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		if (!component->driver->ops ||
+		    !component->driver->ops->mmap)
+			continue;
+
+		/* FIXME. it returns 1st mmap now */
+		return component->driver->ops->mmap(substream, vma);
+	}
+
+	return -EINVAL;
+}
+
 /* create a new pcm */
 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 {
 	struct snd_soc_platform *platform = rtd->platform;
 	struct snd_soc_dai *codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_pcm *pcm;
 	char new_name[64];
 	int ret = 0, playback = 0, capture = 0;
@@ -2732,7 +3076,28 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 		rtd->ops.ioctl		= soc_pcm_ioctl;
 	}
 
-	if (platform->driver->ops) {
+	for_each_rtdcom(rtd, rtdcom) {
+		const struct snd_pcm_ops *ops = rtdcom->component->driver->ops;
+
+		if (!ops)
+			continue;
+
+		if (ops->ack)
+			rtd->ops.ack		= soc_rtdcom_ack;
+		if (ops->copy_user)
+			rtd->ops.copy_user	= soc_rtdcom_copy_user;
+		if (ops->copy_kernel)
+			rtd->ops.copy_kernel	= soc_rtdcom_copy_kernel;
+		if (ops->fill_silence)
+			rtd->ops.fill_silence	= soc_rtdcom_fill_silence;
+		if (ops->page)
+			rtd->ops.page		= soc_rtdcom_page;
+		if (ops->mmap)
+			rtd->ops.mmap		= soc_rtdcom_mmap;
+	}
+
+	/* overwrite */
+	if (platform && platform->driver->ops) {
 		rtd->ops.ack		= platform->driver->ops->ack;
 		rtd->ops.copy_user	= platform->driver->ops->copy_user;
 		rtd->ops.copy_kernel	= platform->driver->ops->copy_kernel;
@@ -2747,17 +3112,22 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 	if (capture)
 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops);
 
-	if (platform->driver->pcm_new) {
-		ret = platform->driver->pcm_new(rtd);
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		if (!component->pcm_new)
+			continue;
+
+		ret = component->pcm_new(component, rtd);
 		if (ret < 0) {
-			dev_err(platform->dev,
+			dev_err(component->dev,
 				"ASoC: pcm constructor failed: %d\n",
 				ret);
 			return ret;
 		}
 	}
 
-	pcm->private_free = platform->driver->pcm_free;
+	pcm->private_free = soc_pcm_private_free;
 out:
 	dev_info(rtd->card->dev, "%s <-> %s mapping ok\n",
 		 (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name,