[PATCH 0/2] ASoC: soc-core: adjust platform for new style

[PATCH 0/2] ASoC: soc-core: adjust platform for new style

[Kuninori Morimoto]

Hi Mark

These are v2 of
"ASoC: soc-core: use more generic method to find platform"
but, renamed patch series naming.

v1 patch set had bug under DPCM which can't probe sound card.
The cause was "platform name" management and "component" finding loop.
These patch set solved this issue.
And then, patch set became reduced

Now, ALSA SoC is using snd_soc_dai_link_component for platform
instead of legacy style (= platform_name/platform_of_node/platform).

OTOH, CPU/Codec are finding its DAI by using common snd_soc_find_dai()
function which uses snd_soc_dai_link_component.
Then, of course, we want to use same style for platform.

These patch do it.

Kuninori Morimoto (2):
  ASoC: soc-core: manage platform name under snd_soc_init_platform()
  ASoC: soc-core: add snd_soc_is_matching_component()

 sound/soc/soc-core.c | 73 +++++++++++++++++++++++++++-------------------------
 1 file changed, 38 insertions(+), 35 deletions(-)

-- 
2.7.4

[PATCH 1/2] ASoC: soc-core: manage platform name under snd_soc_init_platform()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Now "platform" is controlled by snd_soc_dai_link_component,
thus its "name" can be initialized in snd_soc_init_platform(),
instead of soc_bind_dai_link() local.
This patch do it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/soc-core.c | 33 +++++++++++++++++----------------
 1 file changed, 17 insertions(+), 16 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4e9367a..2d14a12 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -844,7 +844,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 	struct snd_soc_component *component;
 	struct snd_soc_dai **codec_dais;
 	struct device_node *platform_of_node;
-	const char *platform_name;
 	int i;
 
 	if (dai_link->ignore)
@@ -891,11 +890,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 	/* Single codec links expect codec and codec_dai in runtime data */
 	rtd->codec_dai = codec_dais[0];
 
-	/* if there's no platform we match on the empty platform */
-	platform_name = dai_link->platform->name;
-	if (!platform_name && !dai_link->platform->of_node)
-		platform_name = "snd-soc-dummy";
-
 	/* find one from the set of registered platforms */
 	list_for_each_entry(component, &component_list, list) {
 		platform_of_node = component->dev->of_node;
@@ -906,7 +900,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 			if (platform_of_node != dai_link->platform->of_node)
 				continue;
 		} else {
-			if (strcmp(component->name, platform_name))
+			if (strcmp(component->name, dai_link->platform->name))
 				continue;
 		}
 
@@ -1019,24 +1013,31 @@ static void soc_remove_dai_links(struct snd_soc_card *card)
 static int snd_soc_init_platform(struct snd_soc_card *card,
 				 struct snd_soc_dai_link *dai_link)
 {
+	struct snd_soc_dai_link_component *platform = dai_link->platform;
+
 	/*
 	 * FIXME
 	 *
 	 * this function should be removed in the future
 	 */
 	/* convert Legacy platform link */
-	if (dai_link->platform)
-		return 0;
-
-	dai_link->platform = devm_kzalloc(card->dev,
+	if (!platform) {
+		platform = devm_kzalloc(card->dev,
 				sizeof(struct snd_soc_dai_link_component),
 				GFP_KERNEL);
-	if (!dai_link->platform)
-		return -ENOMEM;
+		if (!platform)
+			return -ENOMEM;
 
-	dai_link->platform->name	= dai_link->platform_name;
-	dai_link->platform->of_node	= dai_link->platform_of_node;
-	dai_link->platform->dai_name	= NULL;
+		dai_link->platform	= platform;
+		platform->name		= dai_link->platform_name;
+		platform->of_node	= dai_link->platform_of_node;
+		platform->dai_name	= NULL;
+	}
+
+	/* if there's no platform we match on the empty platform */
+	if (!platform->name &&
+	    !platform->of_node)
+		platform->name = "snd-soc-dummy";
 
 	return 0;
 }
-- 
2.7.4

[PATCH 2/2] ASoC: soc-core: add snd_soc_is_matching_component()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

To find (CPU/)Codec/Platform, we need to find component first
(= on CPU/Codec/Platform), and find DAI from it (= CPU/Codec).
These are similar operation but difficult to be simple,
and has many duplicate code to finding component.
This patch adds new snd_soc_is_matching_component(),
and reduce duplicate codes.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/soc-core.c | 42 ++++++++++++++++++++++--------------------
 1 file changed, 22 insertions(+), 20 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 2d14a12..c8c73c6 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -736,6 +736,24 @@ static struct snd_soc_component *soc_find_component(
 	return NULL;
 }
 
+static int snd_soc_is_matching_component(
+	const struct snd_soc_dai_link_component *dlc,
+	struct snd_soc_component *component)
+{
+	struct device_node *component_of_node;
+
+	component_of_node = component->dev->of_node;
+	if (!component_of_node && component->dev->parent)
+		component_of_node = component->dev->parent->of_node;
+
+	if (dlc->of_node && component_of_node != dlc->of_node)
+		return 0;
+	if (dlc->name && strcmp(component->name, dlc->name))
+		return 0;
+
+	return 1;
+}
+
 /**
  * snd_soc_find_dai - Find a registered DAI
  *
@@ -752,19 +770,12 @@ struct snd_soc_dai *snd_soc_find_dai(
 {
 	struct snd_soc_component *component;
 	struct snd_soc_dai *dai;
-	struct device_node *component_of_node;
 
 	lockdep_assert_held(&client_mutex);
 
 	/* Find CPU DAI from registered DAIs*/
 	list_for_each_entry(component, &component_list, list) {
-		component_of_node = component->dev->of_node;
-		if (!component_of_node && component->dev->parent)
-			component_of_node = component->dev->parent->of_node;
-
-		if (dlc->of_node && component_of_node != dlc->of_node)
-			continue;
-		if (dlc->name && strcmp(component->name, dlc->name))
+		if (!snd_soc_is_matching_component(dlc, component))
 			continue;
 		list_for_each_entry(dai, &component->dai_list, list) {
 			if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)
@@ -843,7 +854,6 @@ 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 device_node *platform_of_node;
 	int i;
 
 	if (dai_link->ignore)
@@ -892,17 +902,9 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 
 	/* find one from the set of registered platforms */
 	list_for_each_entry(component, &component_list, list) {
-		platform_of_node = component->dev->of_node;
-		if (!platform_of_node && component->dev->parent->of_node)
-			platform_of_node = component->dev->parent->of_node;
-
-		if (dai_link->platform->of_node) {
-			if (platform_of_node != dai_link->platform->of_node)
-				continue;
-		} else {
-			if (strcmp(component->name, dai_link->platform->name))
-				continue;
-		}
+		if (!snd_soc_is_matching_component(dai_link->platform,
+						   component))
+			continue;
 
 		snd_soc_rtdcom_add(rtd, component);
 	}
-- 
2.7.4

Applied "ASoC: soc-core: add snd_soc_is_matching_component()" to the asoc tree

[Mark Brown]

The patch

   ASoC: soc-core: add snd_soc_is_matching_component()

has been applied to the asoc tree at

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

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

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

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

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

Thanks,
Mark

>From be6ac0a9ced99403c435b2b2fe9ac4bd55749823 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 11 Sep 2018 06:51:45 +0000
Subject: [PATCH] ASoC: soc-core: add snd_soc_is_matching_component()

To find (CPU/)Codec/Platform, we need to find component first
(= on CPU/Codec/Platform), and find DAI from it (= CPU/Codec).
These are similar operation but difficult to be simple,
and has many duplicate code to finding component.
This patch adds new snd_soc_is_matching_component(),
and reduce duplicate codes.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-core.c | 42 ++++++++++++++++++++++--------------------
 1 file changed, 22 insertions(+), 20 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index d856b08f5f99..da2b2a758b6d 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -737,6 +737,24 @@ static struct snd_soc_component *soc_find_component(
 	return NULL;
 }
 
+static int snd_soc_is_matching_component(
+	const struct snd_soc_dai_link_component *dlc,
+	struct snd_soc_component *component)
+{
+	struct device_node *component_of_node;
+
+	component_of_node = component->dev->of_node;
+	if (!component_of_node && component->dev->parent)
+		component_of_node = component->dev->parent->of_node;
+
+	if (dlc->of_node && component_of_node != dlc->of_node)
+		return 0;
+	if (dlc->name && strcmp(component->name, dlc->name))
+		return 0;
+
+	return 1;
+}
+
 /**
  * snd_soc_find_dai - Find a registered DAI
  *
@@ -753,19 +771,12 @@ struct snd_soc_dai *snd_soc_find_dai(
 {
 	struct snd_soc_component *component;
 	struct snd_soc_dai *dai;
-	struct device_node *component_of_node;
 
 	lockdep_assert_held(&client_mutex);
 
 	/* Find CPU DAI from registered DAIs*/
 	list_for_each_entry(component, &component_list, list) {
-		component_of_node = component->dev->of_node;
-		if (!component_of_node && component->dev->parent)
-			component_of_node = component->dev->parent->of_node;
-
-		if (dlc->of_node && component_of_node != dlc->of_node)
-			continue;
-		if (dlc->name && strcmp(component->name, dlc->name))
+		if (!snd_soc_is_matching_component(dlc, component))
 			continue;
 		list_for_each_entry(dai, &component->dai_list, list) {
 			if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)
@@ -844,7 +855,6 @@ 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 device_node *platform_of_node;
 	int i;
 
 	if (dai_link->ignore)
@@ -893,17 +903,9 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 
 	/* find one from the set of registered platforms */
 	list_for_each_entry(component, &component_list, list) {
-		platform_of_node = component->dev->of_node;
-		if (!platform_of_node && component->dev->parent->of_node)
-			platform_of_node = component->dev->parent->of_node;
-
-		if (dai_link->platform->of_node) {
-			if (platform_of_node != dai_link->platform->of_node)
-				continue;
-		} else {
-			if (strcmp(component->name, dai_link->platform->name))
-				continue;
-		}
+		if (!snd_soc_is_matching_component(dai_link->platform,
+						   component))
+			continue;
 
 		snd_soc_rtdcom_add(rtd, component);
 	}
-- 
2.19.0

Applied "ASoC: soc-core: manage platform name under snd_soc_init_platform()" to the asoc tree

[Mark Brown]

The patch

   ASoC: soc-core: manage platform name under snd_soc_init_platform()

has been applied to the asoc tree at

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

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

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

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

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

Thanks,
Mark

>From 4a9ed39477bd1635cf23b49e10f9e364329bbe46 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 11 Sep 2018 06:51:14 +0000
Subject: [PATCH] ASoC: soc-core: manage platform name under
 snd_soc_init_platform()

Now "platform" is controlled by snd_soc_dai_link_component,
thus its "name" can be initialized in snd_soc_init_platform(),
instead of soc_bind_dai_link() local.
This patch do it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-core.c | 33 +++++++++++++++++----------------
 1 file changed, 17 insertions(+), 16 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 325dc1964850..d856b08f5f99 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -845,7 +845,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 	struct snd_soc_component *component;
 	struct snd_soc_dai **codec_dais;
 	struct device_node *platform_of_node;
-	const char *platform_name;
 	int i;
 
 	if (dai_link->ignore)
@@ -892,11 +891,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 	/* Single codec links expect codec and codec_dai in runtime data */
 	rtd->codec_dai = codec_dais[0];
 
-	/* if there's no platform we match on the empty platform */
-	platform_name = dai_link->platform->name;
-	if (!platform_name && !dai_link->platform->of_node)
-		platform_name = "snd-soc-dummy";
-
 	/* find one from the set of registered platforms */
 	list_for_each_entry(component, &component_list, list) {
 		platform_of_node = component->dev->of_node;
@@ -907,7 +901,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
 			if (platform_of_node != dai_link->platform->of_node)
 				continue;
 		} else {
-			if (strcmp(component->name, platform_name))
+			if (strcmp(component->name, dai_link->platform->name))
 				continue;
 		}
 
@@ -1020,24 +1014,31 @@ static void soc_remove_dai_links(struct snd_soc_card *card)
 static int snd_soc_init_platform(struct snd_soc_card *card,
 				 struct snd_soc_dai_link *dai_link)
 {
+	struct snd_soc_dai_link_component *platform = dai_link->platform;
+
 	/*
 	 * FIXME
 	 *
 	 * this function should be removed in the future
 	 */
 	/* convert Legacy platform link */
-	if (dai_link->platform)
-		return 0;
-
-	dai_link->platform = devm_kzalloc(card->dev,
+	if (!platform) {
+		platform = devm_kzalloc(card->dev,
 				sizeof(struct snd_soc_dai_link_component),
 				GFP_KERNEL);
-	if (!dai_link->platform)
-		return -ENOMEM;
+		if (!platform)
+			return -ENOMEM;
 
-	dai_link->platform->name	= dai_link->platform_name;
-	dai_link->platform->of_node	= dai_link->platform_of_node;
-	dai_link->platform->dai_name	= NULL;
+		dai_link->platform	= platform;
+		platform->name		= dai_link->platform_name;
+		platform->of_node	= dai_link->platform_of_node;
+		platform->dai_name	= NULL;
+	}
+
+	/* if there's no platform we match on the empty platform */
+	if (!platform->name &&
+	    !platform->of_node)
+		platform->name = "snd-soc-dummy";
 
 	return 0;
 }
-- 
2.19.0