| Message ID | 55f6e0d76f67a517b9a44136d790ff2a06b5caa8.1591947428.git.shengjiu.wang@nxp.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | Reuse the dma channel if available in Back-End | expand |
| Context | Check | Description |
|---|---|---|
| snowpatch_ozlabs/apply_patch | success | Successfully applied on branch powerpc/merge (ec7b8eb9bc7a519047485c95f7292b48f5b73fe6) |
| snowpatch_ozlabs/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 23 lines checked |
| snowpatch_ozlabs/needsstable | success | Patch has no Fixes tags |
On Fri, Jun 12, 2020 at 03:37:48PM +0800, Shengjiu Wang wrote: > snd_soc_lookup_component_nolocked can be used for the DPCM case > that Front-End needs to get the unused platform component but > added by Back-End cpu dai driver. > > If the component is gotten, then we can get the dma chan created > by Back-End component and reused it in Front-End. > > Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Reviewed-by: Nicolin Chen <nicoleotsuka@gmail.com>
diff --git a/include/sound/soc.h b/include/sound/soc.h index 74868436ac79..565612a8d690 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -444,6 +444,8 @@ int devm_snd_soc_register_component(struct device *dev, const struct snd_soc_component_driver *component_driver, struct snd_soc_dai_driver *dai_drv, int num_dai); void snd_soc_unregister_component(struct device *dev); +struct snd_soc_component *snd_soc_lookup_component_nolocked(struct device *dev, + const char *driver_name); struct snd_soc_component *snd_soc_lookup_component(struct device *dev, const char *driver_name); diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index b07eca2c6ccc..d4c73e86d058 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -310,7 +310,7 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, } EXPORT_SYMBOL_GPL(snd_soc_rtdcom_lookup); -static struct snd_soc_component +struct snd_soc_component *snd_soc_lookup_component_nolocked(struct device *dev, const char *driver_name) { struct snd_soc_component *component; @@ -329,6 +329,7 @@ static struct snd_soc_component return found_component; } +EXPORT_SYMBOL_GPL(snd_soc_lookup_component_nolocked); struct snd_soc_component *snd_soc_lookup_component(struct device *dev, const char *driver_name)
snd_soc_lookup_component_nolocked can be used for the DPCM case that Front-End needs to get the unused platform component but added by Back-End cpu dai driver. If the component is gotten, then we can get the dma chan created by Back-End component and reused it in Front-End. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> --- include/sound/soc.h | 2 ++ sound/soc/soc-core.c | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-)