[alsa-devel] [PATCH] ASoC: PCM_RATE: Check for KNOT and CONTINUOUS flags

[Jassi Brar]

For ASoC, if either CPU or CODEC driver has set the flag, the MACHINE driver
should be given a chance to figure out if the dai, that set the flag, can
accomodate a rate that it does not explicitly specify but is specified
by the dai at the other end of the link.

Signed-off-by: Jassi Brar <jassi.brar at samsung.com>
---
 sound/soc/soc-core.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 06c38d1..eb73aab 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -404,6 +404,12 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 			codec_dai->playback.formats & cpu_dai->playback.formats;
 		runtime->hw.rates =
 			codec_dai->playback.rates & cpu_dai->playback.rates;
+		if (codec_dai->playback.rates
+			   & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+			runtime->hw.rates |= cpu_dai->playback.rates;
+		if (cpu_dai->playback.rates
+			   & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+			runtime->hw.rates |= codec_dai->playback.rates;
 	} else {
 		runtime->hw.rate_min =
 			max(codec_dai->capture.rate_min,
@@ -421,6 +427,12 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 			codec_dai->capture.formats & cpu_dai->capture.formats;
 		runtime->hw.rates =
 			codec_dai->capture.rates & cpu_dai->capture.rates;
+		if (codec_dai->capture.rates
+			   & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+			runtime->hw.rates |= cpu_dai->capture.rates;
+		if (cpu_dai->capture.rates
+			   & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+			runtime->hw.rates |= codec_dai->capture.rates;
 	}
 
 	snd_pcm_limit_hw_rates(runtime);
-- 
1.6.2.5