From ef050bece1b5564b2c7135ceadc0d5ffdcf152f7 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.cirrus.com>
Date: Tue, 24 Apr 2018 16:39:02 +0100
Subject: [PATCH] ASoC: Remove platform code now everything is componentised

As all drivers have been moved over to the new generic component
code remove the now unused platform specific code.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/soc.h      | 103 +-----------------
 sound/soc/soc-compress.c | 227 ++-------------------------------------
 sound/soc/soc-core.c     | 214 ------------------------------------
 sound/soc/soc-devres.c   |  35 ------
 sound/soc/soc-io.c       |  21 ----
 sound/soc/soc-pcm.c      | 119 +-------------------
 6 files changed, 12 insertions(+), 707 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index ad266d7e9553..9ea99e5d3c8e 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -401,9 +401,7 @@ struct snd_soc_ops;
 struct snd_soc_pcm_runtime;
 struct snd_soc_dai;
 struct snd_soc_dai_driver;
-struct snd_soc_platform;
 struct snd_soc_dai_link;
-struct snd_soc_platform_driver;
 struct snd_soc_codec;
 struct snd_soc_codec_driver;
 struct snd_soc_component;
@@ -455,15 +453,6 @@ static inline int snd_soc_resume(struct device *dev)
 }
 #endif
 int snd_soc_poweroff(struct device *dev);
-int snd_soc_register_platform(struct device *dev,
-		const struct snd_soc_platform_driver *platform_drv);
-int devm_snd_soc_register_platform(struct device *dev,
-		const struct snd_soc_platform_driver *platform_drv);
-void snd_soc_unregister_platform(struct device *dev);
-int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
-		const struct snd_soc_platform_driver *platform_drv);
-void snd_soc_remove_platform(struct snd_soc_platform *platform);
-struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev);
 int snd_soc_register_codec(struct device *dev,
 		const struct snd_soc_codec_driver *codec_drv,
 		struct snd_soc_dai_driver *dai_drv, int num_dai);
@@ -485,10 +474,6 @@ struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
 int snd_soc_cache_init(struct snd_soc_codec *codec);
 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 
-int snd_soc_platform_read(struct snd_soc_platform *platform,
-					unsigned int reg);
-int snd_soc_platform_write(struct snd_soc_platform *platform,
-					unsigned int reg, unsigned int val);
 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 #ifdef CONFIG_SND_SOC_COMPRESS
 int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
@@ -628,8 +613,6 @@ int snd_soc_add_component_controls(struct snd_soc_component *component,
 	const struct snd_kcontrol_new *controls, unsigned int num_controls);
 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 	const struct snd_kcontrol_new *controls, unsigned int num_controls);
-int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
-	const struct snd_kcontrol_new *controls, unsigned int num_controls);
 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 	const struct snd_kcontrol_new *controls, int num_controls);
 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
@@ -996,39 +979,12 @@ struct snd_soc_codec_driver {
 	bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 };
 
-/* SoC platform interface */
-struct snd_soc_platform_driver {
-
-	int (*probe)(struct snd_soc_platform *);
-	int (*remove)(struct snd_soc_platform *);
-	struct snd_soc_component_driver component_driver;
-
-	/* pcm creation and destruction */
-	int (*pcm_new)(struct snd_soc_pcm_runtime *);
-	void (*pcm_free)(struct snd_pcm *);
-
-	/* platform stream pcm ops */
-	const struct snd_pcm_ops *ops;
-
-	/* platform stream compress ops */
-	const struct snd_compr_ops *compr_ops;
-};
-
 struct snd_soc_dai_link_component {
 	const char *name;
 	struct device_node *of_node;
 	const char *dai_name;
 };
 
-struct snd_soc_platform {
-	struct device *dev;
-	const struct snd_soc_platform_driver *driver;
-
-	struct list_head list;
-
-	struct snd_soc_component component;
-};
-
 struct snd_soc_dai_link {
 	/* config - must be set by machine driver */
 	const char *name;			/* Codec name */
@@ -1277,7 +1233,6 @@ struct snd_soc_pcm_runtime {
 	struct snd_pcm *pcm;
 	struct snd_compr *compr;
 	struct snd_soc_codec *codec;
-	struct snd_soc_platform *platform; /* will be removed */
 	struct snd_soc_dai *codec_dai;
 	struct snd_soc_dai *cpu_dai;
 
@@ -1358,19 +1313,6 @@ static inline struct snd_soc_codec *snd_soc_component_to_codec(
 	return container_of(component, struct snd_soc_codec, component);
 }
 
-/**
- * snd_soc_component_to_platform() - Casts a component to the platform it is embedded in
- * @component: The component to cast to a platform
- *
- * This function must only be used on components that are known to be platforms.
- * Otherwise the behavior is undefined.
- */
-static inline struct snd_soc_platform *snd_soc_component_to_platform(
-	struct snd_soc_component *component)
-{
-	return container_of(component, struct snd_soc_platform, component);
-}
-
 /**
  * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is
  *  embedded in
@@ -1399,20 +1341,6 @@ static inline struct snd_soc_codec *snd_soc_dapm_to_codec(
 	return snd_soc_component_to_codec(snd_soc_dapm_to_component(dapm));
 }
 
-/**
- * snd_soc_dapm_to_platform() - Casts a DAPM context to the platform it is
- *  embedded in
- * @dapm: The DAPM context to cast to the platform.
- *
- * This function must only be used on DAPM contexts that are known to be part of
- * a platform (e.g. in a platform driver). Otherwise the behavior is undefined.
- */
-static inline struct snd_soc_platform *snd_soc_dapm_to_platform(
-	struct snd_soc_dapm_context *dapm)
-{
-	return snd_soc_component_to_platform(snd_soc_dapm_to_component(dapm));
-}
-
 /**
  * snd_soc_component_get_dapm() - Returns the DAPM context associated with a
  *  component
@@ -1673,17 +1601,6 @@ static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
 	return snd_soc_component_get_drvdata(&codec->component);
 }
 
-static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
-		void *data)
-{
-	snd_soc_component_set_drvdata(&platform->component, data);
-}
-
-static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
-{
-	return snd_soc_component_get_drvdata(&platform->component);
-}
-
 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
 {
 	INIT_LIST_HEAD(&card->widgets);
@@ -1746,9 +1663,9 @@ static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec)
  * @kcontrol: The control for which to get the component
  *
  * Note: This function will work correctly if the control has been registered
- * for a component. Either with snd_soc_add_codec_controls() or
- * snd_soc_add_platform_controls() or via  table based setup for either a
- * CODEC, a platform or component driver. Otherwise the behavior is undefined.
+ * for a component. With snd_soc_add_codec_controls() or via table based
+ * setup for either a CODEC or component driver. Otherwise the behavior is
+ * undefined.
  */
 static inline struct snd_soc_component *snd_soc_kcontrol_component(
 	struct snd_kcontrol *kcontrol)
@@ -1770,20 +1687,6 @@ static inline struct snd_soc_codec *snd_soc_kcontrol_codec(
 	return snd_soc_component_to_codec(snd_soc_kcontrol_component(kcontrol));
 }
 
-/**
- * snd_soc_kcontrol_platform() - Returns the platform that registered the control
- * @kcontrol: The control for which to get the platform
- *
- * Note: This function will only work correctly if the control has been
- * registered with snd_soc_add_platform_controls() or via table based setup of
- * a snd_soc_platform_driver. Otherwise the behavior is undefined.
- */
-static inline struct snd_soc_platform *snd_soc_kcontrol_platform(
-	struct snd_kcontrol *kcontrol)
-{
-	return snd_soc_component_to_platform(snd_soc_kcontrol_component(kcontrol));
-}
-
 int snd_soc_util_init(void);
 void snd_soc_util_exit(void);
 
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 948505f74229..abc00c6cc2d7 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -29,7 +29,6 @@
 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;
@@ -47,23 +46,9 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 		}
 	}
 
-	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->open) {
-		ret = platform->driver->compr_ops->open(cstream);
-		if (ret < 0) {
-			dev_err(platform->dev,
-				"Compress ASoC: can't open platform %s: %d\n",
-				platform->component.name, ret);
-			goto plat_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->open)
 			continue;
@@ -101,10 +86,6 @@ machine_err:
 		if (err_comp == component)
 			break;
 
-		/* ignore duplication for now */
-		if (platform && (err_comp == &platform->component))
-			continue;
-
 		if (!err_comp->driver->compr_ops ||
 		    !err_comp->driver->compr_ops->free)
 			continue;
@@ -112,9 +93,6 @@ machine_err:
 		err_comp->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)
 		cpu_dai->driver->cops->shutdown(cstream, cpu_dai);
 out:
@@ -127,7 +105,6 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
 	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;
@@ -153,23 +130,9 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 		}
 	}
 
-	if (platform && platform->driver->compr_ops && platform->driver->compr_ops->open) {
-		ret = platform->driver->compr_ops->open(cstream);
-		if (ret < 0) {
-			dev_err(platform->dev,
-				"Compress ASoC: can't open platform %s: %d\n",
-				platform->component.name, ret);
-			goto plat_err;
-		}
-	}
-
 	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;
@@ -242,10 +205,6 @@ machine_err:
 		if (err_comp == component)
 			break;
 
-		/* ignore duplication for now */
-		if (platform && (err_comp == &platform->component))
-			continue;
-
 		if (!err_comp->driver->compr_ops ||
 		    !err_comp->driver->compr_ops->free)
 			continue;
@@ -253,9 +212,6 @@ machine_err:
 		err_comp->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)
 		cpu_dai->driver->cops->shutdown(cstream, cpu_dai);
 out:
@@ -296,7 +252,6 @@ static void close_delayed_work(struct work_struct *work)
 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;
@@ -326,10 +281,6 @@ static int soc_compr_free(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->free)
 			continue;
@@ -337,9 +288,6 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 		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)
 		cpu_dai->driver->cops->shutdown(cstream, cpu_dai);
 
@@ -368,7 +316,6 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 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;
@@ -408,16 +355,9 @@ 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 && 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;
@@ -436,7 +376,6 @@ 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;
@@ -445,19 +384,9 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	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;
@@ -489,7 +418,6 @@ out:
 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;
@@ -498,19 +426,9 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)
 	if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN ||
 		cmd == SND_COMPR_TRIGGER_DRAIN) {
 
-		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;
@@ -536,19 +454,9 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)
 			goto out;
 	}
 
-	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;
@@ -589,7 +497,6 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 					struct snd_compr_params *params)
 {
 	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;
@@ -597,11 +504,12 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	/* first we call set_params for the platform driver
-	 * this should configure the soc side
-	 * if the machine has compressed ops then we call that as well
-	 * expectation is that platform and machine will configure everything
-	 * for this compress path, like configuring pcm port for codec
+	/*
+	 * First we call set_params for the CPU DAI, then the component
+	 * driver this should configure the SoC side. If the machine has
+	 * compressed ops then we call that as well. The expectation is
+	 * that these callbacks will configure everything for this compress
+	 * path, like configuring a PCM port for a CODEC.
 	 */
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_params) {
 		ret = cpu_dai->driver->cops->set_params(cstream, params, cpu_dai);
@@ -609,19 +517,9 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 			goto err;
 	}
 
-	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;
@@ -665,7 +563,6 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
 	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;
@@ -684,19 +581,9 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
 			goto out;
 	}
 
-	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;
@@ -745,7 +632,6 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,
 					struct snd_codec *params)
 {
 	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;
@@ -759,19 +645,9 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,
 			goto err;
 	}
 
-	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;
@@ -790,26 +666,15 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream,
 				struct snd_compr_caps *caps)
 {
 	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;
 	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	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;
@@ -819,7 +684,6 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream,
 			ret = __ret;
 	}
 
-err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -828,26 +692,15 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,
 				struct snd_compr_codec_caps *codec)
 {
 	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;
 	int ret = 0, __ret;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	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;
@@ -857,7 +710,6 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,
 			ret = __ret;
 	}
 
-err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -865,7 +717,6 @@ err:
 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;
@@ -879,19 +730,9 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
 			goto err;
 	}
 
-	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;
@@ -910,7 +751,6 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,
 			struct snd_compr_tstamp *tstamp)
 {
 	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;
 	int ret = 0, __ret;
@@ -921,19 +761,9 @@ 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 && 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;
@@ -943,7 +773,6 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,
 			ret = __ret;
 	}
 
-err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -952,26 +781,15 @@ static int soc_compr_copy(struct snd_compr_stream *cstream,
 			  char __user *buf, size_t count)
 {
 	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;
 	int ret = 0;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	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;
@@ -980,7 +798,6 @@ static int soc_compr_copy(struct snd_compr_stream *cstream,
 		break;
 	}
 
-err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
@@ -989,7 +806,6 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
 				struct snd_compr_metadata *metadata)
 {
 	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;
@@ -1001,19 +817,9 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
 			return ret;
 	}
 
-	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;
@@ -1030,7 +836,6 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream,
 				struct snd_compr_metadata *metadata)
 {
 	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;
@@ -1042,19 +847,9 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream,
 			return ret;
 	}
 
-	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;
@@ -1107,7 +902,6 @@ static struct snd_compr_ops soc_compr_dyn_ops = {
  */
 int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
 {
-	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;
@@ -1188,18 +982,9 @@ 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 && 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;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index bf7ca32ab31f..052089f16ea0 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -56,7 +56,6 @@ EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
 #endif
 
 static DEFINE_MUTEX(client_mutex);
-static LIST_HEAD(platform_list);
 static LIST_HEAD(codec_list);
 static LIST_HEAD(component_list);
 
@@ -381,21 +380,6 @@ static int dai_list_show(struct seq_file *m, void *v)
 }
 DEFINE_SHOW_ATTRIBUTE(dai_list);
 
-static int platform_list_show(struct seq_file *m, void *v)
-{
-	struct snd_soc_platform *platform;
-
-	mutex_lock(&client_mutex);
-
-	list_for_each_entry(platform, &platform_list, list)
-		seq_printf(m, "%s\n", platform->component.name);
-
-	mutex_unlock(&client_mutex);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(platform_list);
-
 static void soc_init_card_debugfs(struct snd_soc_card *card)
 {
 	if (!snd_soc_debugfs_root)
@@ -438,10 +422,6 @@ static void snd_soc_debugfs_init(void)
 	if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
 				 &dai_list_fops))
 		pr_warn("ASoC: Failed to create DAI list debugfs file\n");
-
-	if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
-				 &platform_list_fops))
-		pr_warn("ASoC: Failed to create platform list debugfs file\n");
 }
 
 static void snd_soc_debugfs_exit(void)
@@ -1045,7 +1025,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 	struct snd_soc_dai_link_component cpu_dai_component;
 	struct snd_soc_component *component;
 	struct snd_soc_dai **codec_dais;
-	struct snd_soc_platform *platform;
 	struct device_node *platform_of_node;
 	const char *platform_name;
 	int i;
@@ -1113,23 +1092,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 		snd_soc_rtdcom_add(rtd, component);
 	}
 
-	/* find one from the set of registered platforms */
-	list_for_each_entry(platform, &platform_list, list) {
-		platform_of_node = platform->dev->of_node;
-		if (!platform_of_node && platform->dev->parent->of_node)
-			platform_of_node = platform->dev->parent->of_node;
-
-		if (dai_link->platform_of_node) {
-			if (platform_of_node != dai_link->platform_of_node)
-				continue;
-		} else {
-			if (strcmp(platform->component.name, platform_name))
-				continue;
-		}
-
-		rtd->platform = platform;
-	}
-
 	soc_add_pcm_runtime(card, rtd);
 	return 0;
 
@@ -2512,24 +2474,6 @@ int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 }
 EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
 
-/**
- * snd_soc_add_platform_controls - add an array of controls to a platform.
- * Convenience function to add a list of controls.
- *
- * @platform: platform to add controls to
- * @controls: array of controls to add
- * @num_controls: number of elements in the array
- *
- * Return 0 for success, else error.
- */
-int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
-	const struct snd_kcontrol_new *controls, unsigned int num_controls)
-{
-	return snd_soc_add_component_controls(&platform->component, controls,
-		num_controls);
-}
-EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
-
 /**
  * snd_soc_add_card_controls - add an array of controls to a SoC card.
  * Convenience function to add a list of controls.
@@ -3503,164 +3447,6 @@ struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(snd_soc_lookup_component);
 
-static int snd_soc_platform_drv_probe(struct snd_soc_component *component)
-{
-	struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
-
-	return platform->driver->probe(platform);
-}
-
-static void snd_soc_platform_drv_remove(struct snd_soc_component *component)
-{
-	struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
-
-	platform->driver->remove(platform);
-}
-
-static int snd_soc_platform_drv_pcm_new(struct snd_soc_component *component,
-					struct snd_soc_pcm_runtime *rtd)
-{
-	struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
-
-	if (platform->driver->pcm_new)
-		return platform->driver->pcm_new(rtd);
-
-	return 0;
-}
-
-static void snd_soc_platform_drv_pcm_free(struct snd_soc_component *component,
-					  struct snd_pcm *pcm)
-{
-	struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
-
-	if (platform->driver->pcm_free)
-		platform->driver->pcm_free(pcm);
-}
-
-/**
- * snd_soc_add_platform - Add a platform to the ASoC core
- * @dev: The parent device for the platform
- * @platform: The platform to add
- * @platform_drv: The driver for the platform
- */
-int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
-		const struct snd_soc_platform_driver *platform_drv)
-{
-	int ret;
-
-	ret = snd_soc_component_initialize(&platform->component,
-			&platform_drv->component_driver, dev);
-	if (ret)
-		return ret;
-
-	platform->dev = dev;
-	platform->driver = platform_drv;
-
-	if (platform_drv->probe)
-		platform->component.probe = snd_soc_platform_drv_probe;
-	if (platform_drv->remove)
-		platform->component.remove = snd_soc_platform_drv_remove;
-	if (platform_drv->pcm_new)
-		platform->component.pcm_new = snd_soc_platform_drv_pcm_new;
-	if (platform_drv->pcm_free)
-		platform->component.pcm_free = snd_soc_platform_drv_pcm_free;
-
-#ifdef CONFIG_DEBUG_FS
-	platform->component.debugfs_prefix = "platform";
-#endif
-
-	mutex_lock(&client_mutex);
-	snd_soc_component_add_unlocked(&platform->component);
-	list_add(&platform->list, &platform_list);
-	mutex_unlock(&client_mutex);
-
-	dev_dbg(dev, "ASoC: Registered platform '%s'\n",
-		platform->component.name);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_add_platform);
-
-/**
- * snd_soc_register_platform - Register a platform with the ASoC core
- *
- * @dev: The device for the platform
- * @platform_drv: The driver for the platform
- */
-int snd_soc_register_platform(struct device *dev,
-		const struct snd_soc_platform_driver *platform_drv)
-{
-	struct snd_soc_platform *platform;
-	int ret;
-
-	dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev));
-
-	platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
-	if (platform == NULL)
-		return -ENOMEM;
-
-	ret = snd_soc_add_platform(dev, platform, platform_drv);
-	if (ret)
-		kfree(platform);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(snd_soc_register_platform);
-
-/**
- * snd_soc_remove_platform - Remove a platform from the ASoC core
- * @platform: the platform to remove
- */
-void snd_soc_remove_platform(struct snd_soc_platform *platform)
-{
-
-	mutex_lock(&client_mutex);
-	list_del(&platform->list);
-	snd_soc_component_del_unlocked(&platform->component);
-	mutex_unlock(&client_mutex);
-
-	dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n",
-		platform->component.name);
-
-	snd_soc_component_cleanup(&platform->component);
-}
-EXPORT_SYMBOL_GPL(snd_soc_remove_platform);
-
-struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev)
-{
-	struct snd_soc_platform *platform;
-
-	mutex_lock(&client_mutex);
-	list_for_each_entry(platform, &platform_list, list) {
-		if (dev == platform->dev) {
-			mutex_unlock(&client_mutex);
-			return platform;
-		}
-	}
-	mutex_unlock(&client_mutex);
-
-	return NULL;
-}
-EXPORT_SYMBOL_GPL(snd_soc_lookup_platform);
-
-/**
- * snd_soc_unregister_platform - Unregister a platform from the ASoC core
- *
- * @dev: platform to unregister
- */
-void snd_soc_unregister_platform(struct device *dev)
-{
-	struct snd_soc_platform *platform;
-
-	platform = snd_soc_lookup_platform(dev);
-	if (!platform)
-		return;
-
-	snd_soc_remove_platform(platform);
-	kfree(platform);
-}
-EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
-
 static int snd_soc_codec_drv_probe(struct snd_soc_component *component)
 {
 	struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c
index a57921eeee81..7ac745df1412 100644
--- a/sound/soc/soc-devres.c
+++ b/sound/soc/soc-devres.c
@@ -52,41 +52,6 @@ int devm_snd_soc_register_component(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
 
-static void devm_platform_release(struct device *dev, void *res)
-{
-	snd_soc_unregister_platform(*(struct device **)res);
-}
-
-/**
- * devm_snd_soc_register_platform - resource managed platform registration
- * @dev: Device used to manage platform
- * @platform_drv: platform to register
- *
- * Register a platform driver with automatic unregistration when the device is
- * unregistered.
- */
-int devm_snd_soc_register_platform(struct device *dev,
-			const struct snd_soc_platform_driver *platform_drv)
-{
-	struct device **ptr;
-	int ret;
-
-	ptr = devres_alloc(devm_platform_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return -ENOMEM;
-
-	ret = snd_soc_register_platform(dev, platform_drv);
-	if (ret == 0) {
-		*ptr = dev;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(devm_snd_soc_register_platform);
-
 static void devm_card_release(struct device *dev, void *res)
 {
 	snd_soc_unregister_card(*(struct snd_soc_card **)res);
diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c
index d36a192fbece..c92a04bac3c5 100644
--- a/sound/soc/soc-io.c
+++ b/sound/soc/soc-io.c
@@ -267,24 +267,3 @@ int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,
 	return snd_soc_component_test_bits(&codec->component, reg, mask, value);
 }
 EXPORT_SYMBOL_GPL(snd_soc_test_bits);
-
-int snd_soc_platform_read(struct snd_soc_platform *platform,
-					unsigned int reg)
-{
-	unsigned int val;
-	int ret;
-
-	ret = snd_soc_component_read(&platform->component, reg, &val);
-	if (ret < 0)
-		return -1;
-
-	return val;
-}
-EXPORT_SYMBOL_GPL(snd_soc_platform_read);
-
-int snd_soc_platform_write(struct snd_soc_platform *platform,
-					 unsigned int reg, unsigned int val)
-{
-	return snd_soc_component_write(&platform->component, reg, val);
-}
-EXPORT_SYMBOL_GPL(snd_soc_platform_write);
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 68d9dc930096..da5a2dcb6520 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -456,13 +456,12 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
 /*
  * Called by ALSA when a PCM substream is opened, the runtime->hw record is
  * then initialized and any private data can be allocated. This also calls
- * startup for the cpu DAI, platform, machine and codec DAI.
+ * startup for the cpu DAI, component, machine and codec DAI.
  */
 static int soc_pcm_open(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_pcm_runtime *runtime = substream->runtime;
-	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;
@@ -492,23 +491,10 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		}
 	}
 
-	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"
-				" %s: %d\n", platform->component.name, ret);
-			goto platform_err;
-		}
-	}
-
 	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;
@@ -634,10 +620,6 @@ 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;
@@ -645,10 +627,6 @@ component_err:
 		component->driver->ops->close(substream);
 	}
 
-	if (platform && platform->driver->ops && platform->driver->ops->close)
-		platform->driver->ops->close(substream);
-
-platform_err:
 	if (cpu_dai->driver->ops->shutdown)
 		cpu_dai->driver->ops->shutdown(substream, cpu_dai);
 out:
@@ -701,13 +679,12 @@ static void close_delayed_work(struct work_struct *work)
 
 /*
  * Called by ALSA when a PCM substream is closed. Private data can be
- * freed here. The cpu DAI, codec DAI, machine and platform are also
+ * freed here. The cpu DAI, codec DAI, machine and components are also
  * shutdown.
  */
 static int soc_pcm_close(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;
@@ -742,16 +719,9 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 	if (rtd->dai_link->ops->shutdown)
 		rtd->dai_link->ops->shutdown(substream);
 
-	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;
@@ -805,7 +775,6 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 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;
@@ -823,22 +792,9 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
-	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:"
-				" %d\n", ret);
-			goto out;
-		}
-	}
-
 	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;
@@ -932,7 +888,6 @@ static int soc_pcm_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_platform *platform = rtd->platform;
 	struct snd_soc_component *component;
 	struct snd_soc_rtdcom_list *rtdcom;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
@@ -994,23 +949,10 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 	if (ret < 0)
 		goto interface_err;
 
-	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",
-			       platform->component.name, ret);
-			goto platform_err;
-		}
-	}
-
 	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;
@@ -1043,10 +985,6 @@ 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;
@@ -1054,10 +992,6 @@ component_err:
 		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->hw_free)
 		cpu_dai->driver->ops->hw_free(substream, cpu_dai);
 
@@ -1085,7 +1019,6 @@ codec_err:
 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;
@@ -1123,18 +1056,10 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 	if (rtd->dai_link->ops->hw_free)
 		rtd->dai_link->ops->hw_free(substream);
 
-	/* free any DMA resources */
-	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;
@@ -1159,7 +1084,6 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 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;
@@ -1176,19 +1100,9 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 		}
 	}
 
-	if (platform && platform->driver->ops && platform->driver->ops->trigger) {
-		ret = platform->driver->ops->trigger(substream, cmd);
-		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->ops ||
 		    !component->driver->ops->trigger)
 			continue;
@@ -1240,13 +1154,12 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
 }
 /*
  * soc level wrapper for pointer callback
- * If cpu_dai, codec_dai, platform driver has the delay callback, than
+ * If cpu_dai, codec_dai, component driver has the delay callback, then
  * the runtime->delay will be updated accordingly.
  */
 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;
@@ -1257,16 +1170,9 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
 	snd_pcm_sframes_t codec_delay = 0;
 	int i;
 
-	if (platform && platform->driver->ops && platform->driver->ops->pointer)
-		offset = platform->driver->ops->pointer(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->pointer)
 			continue;
@@ -2470,20 +2376,12 @@ static int soc_pcm_ioctl(struct snd_pcm_substream *substream,
 		     unsigned int cmd, void *arg)
 {
 	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 && 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;
@@ -2987,7 +2885,6 @@ static int soc_rtdcom_mmap(struct snd_pcm_substream *substream,
 /* 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;
@@ -3106,16 +3003,6 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 			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;
-		rtd->ops.fill_silence	= platform->driver->ops->fill_silence;
-		rtd->ops.page		= platform->driver->ops->page;
-		rtd->ops.mmap		= platform->driver->ops->mmap;
-	}
-
 	if (playback)
 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops);