[PATCH 0/2] ASoC: fix hw_params/hw_free validity checks

[PATCH 0/2] ASoC: fix hw_params/hw_free validity checks

[Jerome Brunet]

While working on a codec, I have found an odd situation. The hw_params
callback which was provided by the codec dai was not called as expected.
However, the hw_free callback was called, even if hw_params was skipped.

After debugging, I found out that the dai was considered invalid because
it did not specify any rates, only rate_min and rate_max. That's a first
problem.

If a codec dai is considered invalid, hw_free should probably not be
called either, that's a 2nd issue.

This patchset is meant to solve both issues.

Jerome Brunet (2):
  ASoC: fix valid stream condition
  ASoC: skip hw_free on codec dai for which the stream is invalid

 sound/soc/soc-pcm.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

-- 
2.20.1

[PATCH 1/2] ASoC: fix valid stream condition

[Jerome Brunet]

A stream may specify a rate range using 'rate_min' and 'rate_max', so a
stream may be valid and not specify any rates. However, as stream cannot
be valid and not have any channel. Let's use this condition instead to
determine if a stream is valid or not.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
 sound/soc/soc-pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 99bbd724d2a6..263086af707d 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -42,8 +42,8 @@ static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream)
 	else
 		codec_stream = &dai->driver->capture;
 
-	/* If the codec specifies any rate at all, it supports the stream. */
-	return codec_stream->rates;
+	/* If the codec specifies any channels at all, it supports the stream */
+	return codec_stream->channels_min;
 }
 
 /**
-- 
2.20.1

Applied "ASoC: fix valid stream condition" to the asoc tree

[Mark Brown]

The patch

   ASoC: fix valid stream condition

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.1

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 6a7c59c6d9f3b280e81d7a04bbe4e55e90152dce Mon Sep 17 00:00:00 2001
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 29 Apr 2019 11:47:49 +0200
Subject: [PATCH] ASoC: fix valid stream condition

A stream may specify a rate range using 'rate_min' and 'rate_max', so a
stream may be valid and not specify any rates. However, as stream cannot
be valid and not have any channel. Let's use this condition instead to
determine if a stream is valid or not.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d21247546f7f..57088bd69e5d 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -43,8 +43,8 @@ static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream)
 	else
 		codec_stream = &dai->driver->capture;
 
-	/* If the codec specifies any rate at all, it supports the stream. */
-	return codec_stream->rates;
+	/* If the codec specifies any channels at all, it supports the stream */
+	return codec_stream->channels_min;
 }
 
 /**
-- 
2.20.1

Applied "ASoC: fix valid stream condition" to the asoc tree

[Mark Brown]

The patch

   ASoC: fix valid stream condition

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.1

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 6a7c59c6d9f3b280e81d7a04bbe4e55e90152dce Mon Sep 17 00:00:00 2001
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 29 Apr 2019 11:47:49 +0200
Subject: [PATCH] ASoC: fix valid stream condition

A stream may specify a rate range using 'rate_min' and 'rate_max', so a
stream may be valid and not specify any rates. However, as stream cannot
be valid and not have any channel. Let's use this condition instead to
determine if a stream is valid or not.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d21247546f7f..57088bd69e5d 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -43,8 +43,8 @@ static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream)
 	else
 		codec_stream = &dai->driver->capture;
 
-	/* If the codec specifies any rate at all, it supports the stream. */
-	return codec_stream->rates;
+	/* If the codec specifies any channels at all, it supports the stream */
+	return codec_stream->channels_min;
 }
 
 /**
-- 
2.20.1

Applied "ASoC: fix valid stream condition" to the asoc tree

[Mark Brown]

The patch

   ASoC: fix valid stream condition

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.1

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 6a7c59c6d9f3b280e81d7a04bbe4e55e90152dce Mon Sep 17 00:00:00 2001
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 29 Apr 2019 11:47:49 +0200
Subject: [PATCH] ASoC: fix valid stream condition

A stream may specify a rate range using 'rate_min' and 'rate_max', so a
stream may be valid and not specify any rates. However, as stream cannot
be valid and not have any channel. Let's use this condition instead to
determine if a stream is valid or not.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d21247546f7f..57088bd69e5d 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -43,8 +43,8 @@ static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream)
 	else
 		codec_stream = &dai->driver->capture;
 
-	/* If the codec specifies any rate at all, it supports the stream. */
-	return codec_stream->rates;
+	/* If the codec specifies any channels at all, it supports the stream */
+	return codec_stream->channels_min;
 }
 
 /**
-- 
2.20.1

[PATCH 2/2] ASoC: skip hw_free on codec dai for which the stream is invalid

[Jerome Brunet]

Like for hw_params, hw_free should not be called on codec dai for
which the current stream is invalid.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
 sound/soc/soc-pcm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 263086af707d..04ccdc59295d 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1020,6 +1020,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 
 codec_err:
 	for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 		codec_dai->rate = 0;
@@ -1077,6 +1080,9 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 
 	/* now free hw params for the DAIs  */
 	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 	}
-- 
2.20.1

Applied "ASoC: skip hw_free on codec dai for which the stream is invalid" to the asoc tree

[Mark Brown]

The patch

   ASoC: skip hw_free on codec dai for which the stream is invalid

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.1

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 f47b9ad927c6370b80922af434dda98764a43804 Mon Sep 17 00:00:00 2001
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 29 Apr 2019 11:47:50 +0200
Subject: [PATCH] ASoC: skip hw_free on codec dai for which the stream is
 invalid

Like for hw_params, hw_free should not be called on codec dai for
which the current stream is invalid.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-pcm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 57088bd69e5d..a810f6eeffee 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1031,6 +1031,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 
 codec_err:
 	for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 		codec_dai->rate = 0;
@@ -1088,6 +1091,9 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 
 	/* now free hw params for the DAIs  */
 	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 	}
-- 
2.20.1

Applied "ASoC: skip hw_free on codec dai for which the stream is invalid" to the asoc tree

[Mark Brown]

The patch

   ASoC: skip hw_free on codec dai for which the stream is invalid

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.1

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 f47b9ad927c6370b80922af434dda98764a43804 Mon Sep 17 00:00:00 2001
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 29 Apr 2019 11:47:50 +0200
Subject: [PATCH] ASoC: skip hw_free on codec dai for which the stream is
 invalid

Like for hw_params, hw_free should not be called on codec dai for
which the current stream is invalid.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-pcm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 57088bd69e5d..a810f6eeffee 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1031,6 +1031,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 
 codec_err:
 	for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 		codec_dai->rate = 0;
@@ -1088,6 +1091,9 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 
 	/* now free hw params for the DAIs  */
 	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 	}
-- 
2.20.1

Applied "ASoC: skip hw_free on codec dai for which the stream is invalid" to the asoc tree

[Mark Brown]

The patch

   ASoC: skip hw_free on codec dai for which the stream is invalid

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.1

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 f47b9ad927c6370b80922af434dda98764a43804 Mon Sep 17 00:00:00 2001
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 29 Apr 2019 11:47:50 +0200
Subject: [PATCH] ASoC: skip hw_free on codec dai for which the stream is
 invalid

Like for hw_params, hw_free should not be called on codec dai for
which the current stream is invalid.

Fixes: cde79035c6cf ("ASoC: Handle multiple codecs with split playback / capture")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-pcm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 57088bd69e5d..a810f6eeffee 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1031,6 +1031,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 
 codec_err:
 	for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 		codec_dai->rate = 0;
@@ -1088,6 +1091,9 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 
 	/* now free hw params for the DAIs  */
 	for_each_rtd_codec_dai(rtd, i, codec_dai) {
+		if (!snd_soc_dai_stream_valid(codec_dai, substream->stream))
+			continue;
+
 		if (codec_dai->driver->ops->hw_free)
 			codec_dai->driver->ops->hw_free(substream, codec_dai);
 	}
-- 
2.20.1