ASoC: snd_soc_component_driver has snd_compr_ops

Platform will be replaced into Component in the future.
snd_soc_platform_driver has snd_compr_ops, but snd_soc_component_driver
doesn't have. To prepare for replacing, this patch adds snd_compr_ops on
component driver.

platform will be replaced into component, and its code will be removed.
But during replacing, both platform and component process code exists.
To keep compatibility, to avoid platform NULL access and to avoid
platform/component duplicate operation during replacing process, this
patch has such code. Some of this code will be removed when platform was
removed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 427 insertions, 34 deletions

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 2cb8d3b55fbc..d9b1e6417fb9 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -30,8 +30,10 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->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 ret = 0;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
@@ -44,7 +46,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 		}
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->open) {
 		ret = platform->driver->compr_ops->open(cstream);
 		if (ret < 0) {
 			pr_err("compress asoc: can't open platform %s\n",
@@ -53,6 +55,27 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 		}
 	}
 
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->open)
+			continue;
+
+		__ret = component->driver->compr_ops->open(cstream);
+		if (__ret < 0) {
+			pr_err("compress asoc: can't open platform %s\n",
+			       component->name);
+			ret = __ret;
+		}
+	}
+	if (ret < 0)
+		goto machine_err;
+
 	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) {
 		ret = rtd->dai_link->compr_ops->startup(cstream);
 		if (ret < 0) {
@@ -68,7 +91,21 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 	return 0;
 
 machine_err:
-	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->free)
+			continue;
+
+		component->driver->compr_ops->free(cstream);
+	}
+
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->free)
 		platform->driver->compr_ops->free(cstream);
 plat_err:
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
@@ -84,11 +121,13 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	struct snd_pcm_substream *fe_substream =
 		 fe->pcm->streams[cstream->direction].substream;
 	struct snd_soc_platform *platform = fe->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
 	struct snd_soc_dpcm *dpcm;
 	struct snd_soc_dapm_widget_list *list;
 	int stream;
-	int ret = 0;
+	int ret = 0, __ret;
 
 	if (cstream->direction == SND_COMPRESS_PLAYBACK)
 		stream = SNDRV_PCM_STREAM_PLAYBACK;
@@ -107,7 +146,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	}
 
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->open) {
 		ret = platform->driver->compr_ops->open(cstream);
 		if (ret < 0) {
 			pr_err("compress asoc: can't open platform %s\n",
@@ -116,6 +155,27 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 		}
 	}
 
+	for_each_rtdcom(fe, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->open)
+			continue;
+
+		__ret = component->driver->compr_ops->open(cstream);
+		if (__ret < 0) {
+			pr_err("compress asoc: can't open platform %s\n",
+			       component->name);
+			ret = __ret;
+		}
+	}
+	if (ret < 0)
+		goto machine_err;
+
 	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) {
 		ret = fe->dai_link->compr_ops->startup(cstream);
 		if (ret < 0) {
@@ -167,7 +227,21 @@ fe_err:
 	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
 		fe->dai_link->compr_ops->shutdown(cstream);
 machine_err:
-	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
+	for_each_rtdcom(fe, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->free)
+			continue;
+
+		component->driver->compr_ops->free(cstream);
+	}
+
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->free)
 		platform->driver->compr_ops->free(cstream);
 plat_err:
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
@@ -210,6 +284,8 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->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 = rtd->codec_dai;
 	int stream;
@@ -235,7 +311,21 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown)
 		rtd->dai_link->compr_ops->shutdown(cstream);
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->free)
+			continue;
+
+		component->driver->compr_ops->free(cstream);
+	}
+
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->free)
 		platform->driver->compr_ops->free(cstream);
 
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
@@ -267,6 +357,8 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
 	struct snd_soc_platform *platform = fe->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
 	struct snd_soc_dpcm *dpcm;
 	int stream, ret;
@@ -304,9 +396,23 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
 	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
 		fe->dai_link->compr_ops->shutdown(cstream);
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->free)
 		platform->driver->compr_ops->free(cstream);
 
+	for_each_rtdcom(fe, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->free)
+			continue;
+
+		component->driver->compr_ops->free(cstream);
+	}
+
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
 		cpu_dai->driver->cops->shutdown(cstream, cpu_dai);
 
@@ -319,18 +425,38 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
 
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	int ret = 0;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
 		ret = platform->driver->compr_ops->trigger(cstream, cmd);
 		if (ret < 0)
 			goto out;
 	}
 
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->trigger)
+			continue;
+
+		__ret = component->driver->compr_ops->trigger(cstream, cmd);
+		if (__ret < 0)
+			ret = __ret;
+	}
+	if (ret < 0)
+		goto out;
+
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->trigger)
 		cpu_dai->driver->cops->trigger(cstream, cmd, cpu_dai);
 
@@ -353,16 +479,36 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)
 {
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
 	struct snd_soc_platform *platform = fe->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
-	int ret = 0, stream;
+	int ret = 0, __ret, stream;
 
 	if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN ||
 		cmd == SND_COMPR_TRIGGER_DRAIN) {
 
-		if (platform->driver->compr_ops &&
+		if (platform &&
+		    platform->driver->compr_ops &&
 		    platform->driver->compr_ops->trigger)
 			return platform->driver->compr_ops->trigger(cstream,
 								    cmd);
+
+		for_each_rtdcom(fe, rtdcom) {
+			component = rtdcom->component;
+
+			/* ignore duplication for now */
+			if (platform && (component == &platform->component))
+				continue;
+
+			if (!component->driver->compr_ops ||
+			    !component->driver->compr_ops->trigger)
+				continue;
+
+			__ret = component->driver->compr_ops->trigger(cstream, cmd);
+			if (__ret < 0)
+				ret = __ret;
+		}
+		return ret;
 	}
 
 	if (cstream->direction == SND_COMPRESS_PLAYBACK)
@@ -379,12 +525,30 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)
 			goto out;
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
 		ret = platform->driver->compr_ops->trigger(cstream, cmd);
 		if (ret < 0)
 			goto out;
 	}
 
+	for_each_rtdcom(fe, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->trigger)
+			continue;
+
+		__ret = component->driver->compr_ops->trigger(cstream, cmd);
+		if (__ret < 0)
+			ret = __ret;
+	}
+	if (ret < 0)
+		goto out;
+
 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
 
 	ret = dpcm_be_dai_trigger(fe, stream, cmd);
@@ -415,8 +579,10 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->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 ret = 0;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
@@ -432,12 +598,30 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 			goto err;
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
 		ret = platform->driver->compr_ops->set_params(cstream, params);
 		if (ret < 0)
 			goto err;
 	}
 
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->set_params)
+			continue;
+
+		__ret = component->driver->compr_ops->set_params(cstream, params);
+		if (__ret < 0)
+			ret = __ret;
+	}
+	if (ret < 0)
+		goto err;
+
 	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
 		ret = rtd->dai_link->compr_ops->set_params(cstream);
 		if (ret < 0)
@@ -471,8 +655,10 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
 	struct snd_pcm_substream *fe_substream =
 		 fe->pcm->streams[cstream->direction].substream;
 	struct snd_soc_platform *platform = fe->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
-	int ret = 0, stream;
+	int ret = 0, __ret, stream;
 
 	if (cstream->direction == SND_COMPRESS_PLAYBACK)
 		stream = SNDRV_PCM_STREAM_PLAYBACK;
@@ -487,12 +673,30 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
 			goto out;
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
 		ret = platform->driver->compr_ops->set_params(cstream, params);
 		if (ret < 0)
 			goto out;
 	}
 
+	for_each_rtdcom(fe, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->set_params)
+			continue;
+
+		__ret = component->driver->compr_ops->set_params(cstream, params);
+		if (__ret < 0)
+			ret = __ret;
+	}
+	if (ret < 0)
+		goto out;
+
 	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) {
 		ret = fe->dai_link->compr_ops->set_params(cstream);
 		if (ret < 0)
@@ -531,8 +735,10 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->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 ret = 0;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
@@ -542,8 +748,27 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,
 			goto err;
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->get_params)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_params) {
 		ret = platform->driver->compr_ops->get_params(cstream, params);
+		if (ret < 0)
+			goto err;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->get_params)
+			continue;
+
+		__ret = component->driver->compr_ops->get_params(cstream, params);
+		if (__ret < 0)
+			ret = __ret;
+	}
 
 err:
 	mutex_unlock(&rtd->pcm_mutex);
@@ -555,13 +780,35 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
-	int ret = 0;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_caps) {
 		ret = platform->driver->compr_ops->get_caps(cstream, caps);
+		if (ret < 0)
+			goto err;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
 
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->get_caps)
+			continue;
+
+		__ret = component->driver->compr_ops->get_caps(cstream, caps);
+		if (__ret < 0)
+			ret = __ret;
+	}
+
+err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -571,13 +818,35 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
-	int ret = 0;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) {
 		ret = platform->driver->compr_ops->get_codec_caps(cstream, codec);
+		if (ret < 0)
+			goto err;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
 
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->get_codec_caps)
+			continue;
+
+		__ret = component->driver->compr_ops->get_codec_caps(cstream, codec);
+		if (__ret < 0)
+			ret = __ret;
+	}
+
+err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -586,8 +855,10 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->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 ret = 0;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
@@ -597,8 +868,27 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
 			goto err;
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->ack)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->ack) {
 		ret = platform->driver->compr_ops->ack(cstream, bytes);
+		if (ret < 0)
+			goto err;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->ack)
+			continue;
+
+		__ret = component->driver->compr_ops->ack(cstream, bytes);
+		if (__ret < 0)
+			ret = __ret;
+	}
 
 err:
 	mutex_unlock(&rtd->pcm_mutex);
@@ -610,7 +900,9 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
-	int ret = 0;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
+	int ret = 0, __ret;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -618,9 +910,29 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->pointer)
 		cpu_dai->driver->cops->pointer(cstream, tstamp, cpu_dai);
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->pointer)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->pointer) {
 		ret = platform->driver->compr_ops->pointer(cstream, tstamp);
+		if (ret < 0)
+			goto err;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->pointer)
+			continue;
 
+		__ret = component->driver->compr_ops->pointer(cstream, tstamp);
+		if (__ret < 0)
+			ret = __ret;
+	}
+
+err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -630,13 +942,34 @@ static int soc_compr_copy(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
-	int ret = 0;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
+	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->copy) {
 		ret = platform->driver->compr_ops->copy(cstream, buf, count);
+		if (ret < 0)
+			goto err;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->copy)
+			continue;
 
+		__ret = component->driver->compr_ops->copy(cstream, buf, count);
+		if (__ret < 0)
+			ret = __ret;
+	}
+err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -646,8 +979,10 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->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 ret = 0;
+	int ret = 0, __ret;
 
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_metadata) {
 		ret = cpu_dai->driver->cops->set_metadata(cstream, metadata, cpu_dai);
@@ -655,8 +990,27 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
 			return ret;
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) {
 		ret = platform->driver->compr_ops->set_metadata(cstream, metadata);
+		if (ret < 0)
+			return ret;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->set_metadata)
+			continue;
+
+		__ret = component->driver->compr_ops->set_metadata(cstream, metadata);
+		if (__ret < 0)
+			ret = __ret;
+	}
 
 	return ret;
 }
@@ -666,8 +1020,10 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->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 ret = 0;
+	int ret = 0, __ret;
 
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->get_metadata) {
 		ret = cpu_dai->driver->cops->get_metadata(cstream, metadata, cpu_dai);
@@ -675,8 +1031,27 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream,
 			return ret;
 	}
 
-	if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) {
 		ret = platform->driver->compr_ops->get_metadata(cstream, metadata);
+		if (ret < 0)
+			return ret;
+	}
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->get_metadata)
+			continue;
+
+		__ret = component->driver->compr_ops->get_metadata(cstream, metadata);
+		if (__ret < 0)
+			ret = __ret;
+	}
 
 	return ret;
 }
@@ -723,6 +1098,8 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
 {
 	struct snd_soc_codec *codec = rtd->codec;
 	struct snd_soc_platform *platform = rtd->platform;
+	struct snd_soc_component *component;
+	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_compr *compr;
@@ -798,9 +1175,25 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
 		memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops));
 	}
 
+
 	/* Add copy callback for not memory mapped DSPs */
-	if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
+	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->copy)
+		compr->ops->copy = soc_compr_copy;
+
+	for_each_rtdcom(rtd, rtdcom) {
+		component = rtdcom->component;
+
+		/* ignore duplication for now */
+		if (platform && (component == &platform->component))
+			continue;
+
+		if (!component->driver->compr_ops ||
+		    !component->driver->compr_ops->copy)
+			continue;
+
 		compr->ops->copy = soc_compr_copy;
+	}
+
 
 	mutex_init(&compr->lock);
 	ret = snd_compress_new(rtd->card->snd_card, num, direction,