Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com --- sound/soc/soc-compress.c | 3 --- 1 file changed, 3 deletions(-)

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 7973f92cd40f5..b1cf758e3be20 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -145,7 +145,6 @@ 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) { @@ -307,7 +306,6 @@ static int soc_compr_free(struct snd_compr_stream *cstream) if (!codec_dai->active) codec_dai->rate = 0;

- if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) rtd->dai_link->compr_ops->shutdown(cstream);

@@ -460,7 +458,6 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) if (cpu_dai->driver->cops && cpu_dai->driver->cops->trigger) cpu_dai->driver->cops->trigger(cstream, cmd, cpu_dai);

- switch (cmd) { case SNDRV_PCM_TRIGGER_START: snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction);

The error message prints are a little inconsisent, tidy them up to be a little more consistent with current style recommendations.

Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com --- sound/soc/soc-compress.c | 68 +++++++++++++++++++++++++++++------------------- 1 file changed, 41 insertions(+), 27 deletions(-)

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index b1cf758e3be20..82402688bd8ed 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -40,7 +40,8 @@ static int soc_compr_open(struct snd_compr_stream *cstream) if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) { ret = cpu_dai->driver->cops->startup(cstream, cpu_dai); if (ret < 0) { - dev_err(cpu_dai->dev, "Compress ASoC: can't open interface %s: %d\n", + dev_err(cpu_dai->dev, + "Compress ASoC: can't open interface %s: %d\n", cpu_dai->name, ret); goto out; } @@ -49,8 +50,9 @@ 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) { - pr_err("compress asoc: can't open platform %s\n", - platform->component.name); + dev_err(platform->dev, + "Compress ASoC: can't open platform %s: %d\n", + platform->component.name, ret); goto plat_err; } } @@ -68,8 +70,9 @@ static int soc_compr_open(struct snd_compr_stream *cstream)

__ret = component->driver->compr_ops->open(cstream); if (__ret < 0) { - pr_err("compress asoc: can't open platform %s\n", - component->name); + dev_err(component->dev, + "Compress ASoC: can't open platform %s: %d\n", + component->name, __ret); ret = __ret; } } @@ -79,7 +82,9 @@ static int soc_compr_open(struct snd_compr_stream *cstream) if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { ret = rtd->dai_link->compr_ops->startup(cstream); if (ret < 0) { - pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name); + dev_err(rtd->dev, + "Compress ASoC: %s startup failed: %d\n", + rtd->dai_link->name, ret); goto machine_err; } } @@ -139,7 +144,8 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) { ret = cpu_dai->driver->cops->startup(cstream, cpu_dai); if (ret < 0) { - dev_err(cpu_dai->dev, "Compress ASoC: can't open interface %s: %d\n", + dev_err(cpu_dai->dev, + "Compress ASoC: can't open interface %s: %d\n", cpu_dai->name, ret); goto out; } @@ -148,8 +154,9 @@ 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) { - pr_err("compress asoc: can't open platform %s\n", - platform->component.name); + dev_err(platform->dev, + "Compress ASoC: can't open platform %s: %d\n", + platform->component.name, ret); goto plat_err; } } @@ -167,8 +174,9 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)

__ret = component->driver->compr_ops->open(cstream); if (__ret < 0) { - pr_err("compress asoc: can't open platform %s\n", - component->name); + dev_err(component->dev, + "Compress ASoC: can't open platform %s: %d\n", + component->name, __ret); ret = __ret; } } @@ -178,7 +186,8 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { ret = fe->dai_link->compr_ops->startup(cstream); if (ret < 0) { - pr_err("compress asoc: %s startup failed\n", fe->dai_link->name); + pr_err("Compress ASoC: %s startup failed: %d\n", + fe->dai_link->name, ret); goto machine_err; } } @@ -189,7 +198,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) if (ret < 0) goto fe_err; else if (ret == 0) - dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", + dev_dbg(fe->dev, "Compress ASoC: %s no valid %s route\n", fe->dai_link->name, stream ? "capture" : "playback");

/* calculate valid and active FE <-> BE dpcms */ @@ -264,10 +273,11 @@ static void close_delayed_work(struct work_struct *work)

mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);

- dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", - codec_dai->driver->playback.stream_name, - codec_dai->playback_active ? "active" : "inactive", - rtd->pop_wait ? "yes" : "no"); + dev_dbg(rtd->dev, + "Compress ASoC: pop wq checking: %s status: %s waiting: %s\n", + codec_dai->driver->playback.stream_name, + codec_dai->playback_active ? "active" : "inactive", + rtd->pop_wait ? "yes" : "no");

/* are we waiting on this codec DAI stream */ if (rtd->pop_wait == 1) { @@ -374,7 +384,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)

ret = dpcm_be_dai_hw_free(fe, stream); if (ret < 0) - dev_err(fe->dev, "compressed hw_free failed %d\n", ret); + dev_err(fe->dev, "Compressed ASoC: hw_free failed: %d\n", ret);

ret = dpcm_be_dai_shutdown(fe, stream);

@@ -1105,7 +1115,8 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) int playback = 0, capture = 0;

if (rtd->num_codecs > 1) { - dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n"); + dev_err(rtd->card->dev, + "Compress ASoC: Multicodec not supported\n"); return -EINVAL; }

@@ -1123,8 +1134,9 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) * should be set, check for that (xor) */ if (playback + capture != 1) { - dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n", - playback, capture); + dev_err(rtd->card->dev, + "Compress ASoC: Invalid direction for P %d, C %d\n", + playback, capture); return -EINVAL; }

@@ -1152,8 +1164,9 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) rtd->dai_link->dpcm_playback, rtd->dai_link->dpcm_capture, &be_pcm); if (ret < 0) { - dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", - rtd->dai_link->name); + dev_err(rtd->card->dev, + "Compress ASoC: can't create compressed for %s: %d\n", + rtd->dai_link->name, ret); goto compr_err; }

@@ -1196,8 +1209,9 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) new_name, compr); if (ret < 0) { component = rtd->codec_dai->component; - pr_err("compress asoc: can't create compress for codec %s\n", - component->name); + dev_err(component->dev, + "Compress ASoC: can't create compress for codec %s: %d\n", + component->name, ret); goto compr_err; }

@@ -1207,8 +1221,8 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) rtd->compr = compr; compr->private_data = rtd;

- printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, - cpu_dai->name); + dev_info(rtd->card->dev, "Compress ASoC: %s <-> %s mapping ok\n", + codec_dai->name, cpu_dai->name); return ret;

compr_err:

The patch

ASoC: compress: Correct handling of copy callback

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 290df4d3ab192821b66857c05346b23056ee9545 Mon Sep 17 00:00:00 2001

From: Charles Keepax ckeepax@opensource.cirrus.com Date: Fri, 26 Jan 2018 13:08:43 +0000 Subject: [PATCH] ASoC: compress: Correct handling of copy callback

The soc_compr_copy callback is currently broken. Since the changes to move the compr_ops over to the component the return value is not correctly propagated, always returning zero on success rather than the number of bytes copied. This causes user-space to stall continuously reading as it does not believe it has received any data.

Furthermore, the changes to move the compr_ops over to the component iterate through the list of components and will call the copy callback for any that have compressed ops. There isn't currently any consensus on the mechanism to combine the results of multiple copy callbacks.

To fix this issue for now halt searching the component list when we locate a copy callback and return the result of that single callback. Additional work should probably be done to look at the other ops, tidy things up, and work out if we want to support multiple components on a single compressed, but this is the only fix required to get things working again.

Fixes: 9e7e3738ab0e ("ASoC: snd_soc_component_driver has snd_compr_ops") Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown broonie@kernel.org Cc: stable@vger.kernel.org --- sound/soc/soc-compress.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index d9b1e6417fb9..1507117d1185 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -944,7 +944,7 @@ static int soc_compr_copy(struct snd_compr_stream *cstream, struct snd_soc_platform *platform = rtd->platform; struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; - int ret = 0, __ret; + int ret = 0;

mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);

@@ -965,10 +965,10 @@ static int soc_compr_copy(struct snd_compr_stream *cstream, !component->driver->compr_ops->copy) continue;

- __ret = component->driver->compr_ops->copy(cstream, buf, count); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->copy(cstream, buf, count); + break; } + err: mutex_unlock(&rtd->pcm_mutex); return ret;