Revert "ALSA: pcm: introduce INFO_NO_REWINDS flag"

This reverts commit 6ab8dd6. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
kv2019i · Aug 16, 2021 · 342e370 · 342e370
1 parent 451f11e
commit 342e370
Show file tree

Hide file tree

Showing 2 changed files with 1 addition and 3 deletions.
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
@@ -300,7 +300,7 @@ typedef int __bitwise snd_pcm_subformat_t;
 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME    0x04000000  /* report estimated link audio time */
 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000  /* report synchronized audio/system time */
 #define SNDRV_PCM_INFO_NO_STATUS_MMAP	0x10000000	/* status and control mmap not supported */
-#define SNDRV_PCM_INFO_NO_REWINDS	0x20000000	/* hardware can only support monotonic changes of appl_ptr */
+
 #define SNDRV_PCM_INFO_DRAIN_TRIGGER	0x40000000		/* internal kernel flag - trigger in drain */
 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES	0x80000000	/* internal kernel flag - FIFO size is in frames */
 

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
@@ -2897,8 +2897,6 @@ static snd_pcm_sframes_t snd_pcm_rewind(struct snd_pcm_substream *substream,
 
 	if (frames == 0)
 		return 0;
-	if (substream->runtime->info & SNDRV_PCM_INFO_NO_REWINDS)
-		return 0;
 
 	snd_pcm_stream_lock_irq(substream);
 	ret = do_pcm_hwsync(substream);