[PATCH] ASoC: soc-dai: fix DAI startup/shutdown sequence

[Pierre-Louis Bossart]

The addition of a single flag to track the DAI status prevents the DAI
startup sequence from being called on capture if the DAI is already
used for playback.

Fix by extending the existing code with one flag per direction.

Reported-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
Tested-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
Fixes: b56be800f1292 ("ASoC: soc-pcm: call snd_soc_dai_startup()/shutdown() once")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
---
 include/sound/soc-dai.h | 2 +-
 sound/soc/soc-dai.c     | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 78bac995db15..d4825b82c7a3 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -351,7 +351,7 @@ struct snd_soc_dai {
 
 	/* bit field */
 	unsigned int probed:1;
-	unsigned int started:1;
+	unsigned int started[SNDRV_PCM_STREAM_LAST + 1];
 };
 
 static inline struct snd_soc_pcm_stream *
diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c
index 19142f6e533c..8f3cad8db89a 100644
--- a/sound/soc/soc-dai.c
+++ b/sound/soc/soc-dai.c
@@ -295,12 +295,12 @@ int snd_soc_dai_startup(struct snd_soc_dai *dai,
 {
 	int ret = 0;
 
-	if (!dai->started &&
+	if (!dai->started[substream->stream] &&
 	    dai->driver->ops->startup)
 		ret = dai->driver->ops->startup(substream, dai);
 
 	if (ret == 0)
-		dai->started = 1;
+		dai->started[substream->stream] = 1;
 
 	return ret;
 }
@@ -308,11 +308,11 @@ int snd_soc_dai_startup(struct snd_soc_dai *dai,
 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
 			 struct snd_pcm_substream *substream)
 {
-	if (dai->started &&
+	if (dai->started[substream->stream] &&
 	    dai->driver->ops->shutdown)
 		dai->driver->ops->shutdown(substream, dai);
 
-	dai->started = 0;
+	dai->started[substream->stream] = 0;
 }
 
 int snd_soc_dai_prepare(struct snd_soc_dai *dai,
-- 
2.20.1