ASoC: PCM_RATE: Check for KNOT and CONTINUOUS flags

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@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 06c38d1502b7..eb73aab78b94 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);