summaryrefslogtreecommitdiffstats
path: root/sound/soc/soc-pcm.c
diff options
context:
space:
mode:
authorQiao Zhou <zhouqiao@marvell.com>2014-11-17 16:02:57 +0800
committerMark Brown <broonie@kernel.org>2014-11-21 19:32:07 +0000
commit075207d24a394bcdb3a864446f391d4014a04cd4 (patch)
tree30acdcd0b6d1f821de73221ff48eec91a2af43b7 /sound/soc/soc-pcm.c
parentf114040e3ea6e07372334ade75d1ee0775c355e1 (diff)
downloadop-kernel-dev-075207d24a394bcdb3a864446f391d4014a04cd4.zip
op-kernel-dev-075207d24a394bcdb3a864446f391d4014a04cd4.tar.gz
ASoC: soc-pcm: skip dpcm path checking with incapable/unready FE
Skip dpcm path checking for playback or capture, if corresponding FE doesn't support playback or capture, or currently is not ready. It can reduce the unnecessary cost to search connected widgets. [Tweaked comments for clarity -- broonie] Signed-off-by: Qiao Zhou <zhouqiao@marvell.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r--sound/soc/soc-pcm.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 002311a..2f4f074 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2248,7 +2248,13 @@ int soc_dpcm_runtime_update(struct snd_soc_card *card)
fe->dai_link->name);
/* skip if FE doesn't have playback capability */
- if (!fe->cpu_dai->driver->playback.channels_min)
+ if (!fe->cpu_dai->driver->playback.channels_min
+ || !fe->codec_dai->driver->playback.channels_min)
+ goto capture;
+
+ /* skip if FE isn't currently playing */
+ if (!fe->cpu_dai->playback_active
+ || !fe->codec_dai->playback_active)
goto capture;
paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list);
@@ -2278,7 +2284,13 @@ int soc_dpcm_runtime_update(struct snd_soc_card *card)
dpcm_path_put(&list);
capture:
/* skip if FE doesn't have capture capability */
- if (!fe->cpu_dai->driver->capture.channels_min)
+ if (!fe->cpu_dai->driver->capture.channels_min
+ || !fe->codec_dai->driver->capture.channels_min)
+ continue;
+
+ /* skip if FE isn't currently capturing */
+ if (!fe->cpu_dai->capture_active
+ || !fe->codec_dai->capture_active)
continue;
paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list);
OpenPOWER on IntegriCloud