[PATCH v5] ASoC: soc-compress: Cancel delayed power down if needed

[Charles Keepax <ckeepax@opensource.wolfsonmicro.com>]

When a new stream is being opened it is necessary to cancel any delayed
power down of the audio.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---

Sorry I somehow managed to send v3 again as v4, not quite sure
how that came about.

Charles


 sound/soc/soc-compress.c |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index b5b3db7..9eb8b4a 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -198,8 +198,10 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	int ret = 0;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
 	/* first we call set_params for the platform driver
@@ -211,19 +213,27 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 	if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
 		ret = platform->driver->compr_ops->set_params(cstream, params);
 		if (ret < 0)
-			goto out;
+			goto err;
 	}
 
 	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
 		ret = rtd->dai_link->compr_ops->set_params(cstream);
 		if (ret < 0)
-			goto out;
+			goto err;
 	}
 
 	snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
 				SND_SOC_DAPM_STREAM_START);
 
-out:
+	/* cancel any delayed stream shutdown that is pending */
+	rtd->pop_wait = 0;
+	mutex_unlock(&rtd->pcm_mutex);
+
+	cancel_delayed_work_sync(&rtd->delayed_work);
+
+	return ret;
+
+err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
-- 
1.7.2.5