The patch
ASoC: compress: Add pm_runtime support
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.6
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 4137f4b65df7608e52f307f4aa9792b984bad7de Mon Sep 17 00:00:00 2001
From: Cezary Rojewski cezary.rojewski@intel.com Date: Tue, 17 Dec 2019 10:58:50 +0100 Subject: [PATCH] ASoC: compress: Add pm_runtime support
For some devices, components need to be powered-up before stream startup sequence commences. Update soc_compr_open to provide such functionality. Based on soc_pcm_open. Adjust soc_compr_free accordingly to power down components once compress stream is closed.
Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com Link: https://lore.kernel.org/r/20191217095851.19629-7-cezary.rojewski@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/soc-compress.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 6615ef64c7f5..b2a5351b1a11 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -19,6 +19,7 @@ #include <sound/soc.h> #include <sound/initval.h> #include <sound/soc-dpcm.h> +#include <linux/pm_runtime.h>
static int soc_compr_components_open(struct snd_compr_stream *cstream, struct snd_soc_component **last) @@ -72,10 +73,20 @@ static int soc_compr_components_free(struct snd_compr_stream *cstream, static int soc_compr_open(struct snd_compr_stream *cstream) { struct snd_soc_pcm_runtime *rtd = cstream->private_data; - struct snd_soc_component *component; + struct snd_soc_component *component, *save = NULL; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int ret;
+ for_each_rtd_components(rtd, rtdcom, component) { + ret = pm_runtime_get_sync(component->dev); + if (ret < 0 && ret != -EACCES) { + pm_runtime_put_noidle(component->dev); + save = component; + goto pm_err; + } + } + mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) { @@ -115,6 +126,14 @@ static int soc_compr_open(struct snd_compr_stream *cstream) cpu_dai->driver->cops->shutdown(cstream, cpu_dai); out: mutex_unlock(&rtd->card->pcm_mutex); +pm_err: + for_each_rtd_components(rtd, rtdcom, component) { + if (component == save) + break; + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + } + return ret; }
@@ -239,6 +258,8 @@ static void close_delayed_work(struct snd_soc_pcm_runtime *rtd) static int soc_compr_free(struct snd_compr_stream *cstream) { struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_dai *codec_dai = rtd->codec_dai; int stream; @@ -287,6 +308,12 @@ static int soc_compr_free(struct snd_compr_stream *cstream) }
mutex_unlock(&rtd->card->pcm_mutex); + + for_each_rtd_components(rtd, rtdcom, component) { + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + } + return 0; }