diff options
| author | Chen Liangjun <b36089@freescale.com> | 2012-08-24 12:32:36 +0800 |
|---|---|---|
| committer | Chen Liangjun <b36089@freescale.com> | 2012-08-24 17:33:11 +0800 |
| commit | 8e35ba0544d3f7a7b80c8c732026447793669271 (patch) | |
| tree | cb0e405fa637c4584a2388f99b816b4922974900 /sound | |
| parent | a6de22ad42d123a269316b5ceb75f817aa6097ac (diff) | |
ENGR00219933 CS42888: abort delay powerdown if codec is on
CS42888 driver own 2 codec_dai for ESAI and ASRC P2P use. Due to the
delay power down mechanism, if a ASRC P2P stream is played right after
a finish of ESAI stream playback, ASRC P2P stream would be stop.
In this patch, do nothing in the delay powerdown flow if CS42888
codec is on.
Signed-off-by: Chen Liangjun <b36089@freescale.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/cs42888.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs42888.c b/sound/soc/codecs/cs42888.c index 73571dafa9a4..ce240834b2e1 100644 --- a/sound/soc/codecs/cs42888.c +++ b/sound/soc/codecs/cs42888.c @@ -758,11 +758,33 @@ static void cs42888_shutdown(struct snd_pcm_substream *substream, } +static int cs42888_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct snd_soc_dai *tmp_codec_dai; + struct snd_soc_pcm_runtime *tmp_rtd; + u32 i; + + for (i = 0; i < card->num_rtd; i++) { + tmp_codec_dai = card->rtd[i].codec_dai; + tmp_rtd = (struct snd_soc_pcm_runtime *)(card->rtd + i); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && + tmp_codec_dai->pop_wait) { + tmp_codec_dai->pop_wait = 0; + cancel_delayed_work(&tmp_rtd->delayed_work); + } + } + return 0; +} + static struct snd_soc_dai_ops cs42888_dai_ops = { .set_fmt = cs42888_set_dai_fmt, .set_sysclk = cs42888_set_dai_sysclk, .hw_params = cs42888_hw_params, .shutdown = cs42888_shutdown, + .prepare = cs42888_prepare, }; |