Now multi-cpu-dai is supported. We have the same resaon as
multi-codec-dai to skip CPUs which don't support the current stream.
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
sound/soc/soc-pcm.c | 51 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 50 insertions(+), 1 deletion(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index a1e84bbc5258..948363b3e610 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -417,6 +417,20 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
/* first calculate min/max only for CPUs in the DAI link */
for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+
+ /*
+ * Skip CPUs which don't support the current stream type.
+ * Otherwise, since the rate, channel, and format values will
+ * zero in that case, we would have no usable settings left,
+ * causing the resulting setup to fail.
+ * At least one CPU should match, otherwise we should have
+ * bailed out on a higher level, since there would be no
+ * CPU to support the transfer direction in that case.
+ */
+ if (!snd_soc_dai_stream_valid(cpu_dai,
+ substream->stream))
+ continue;
+
cpu_dai_drv = cpu_dai->driver;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
cpu_stream = &cpu_dai_drv->playback;
@@ -945,6 +959,13 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
}
for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ /*
+ * Skip CPUs which don't support the current stream
+ * type. See soc_pcm_init_runtime_hw() for more details
+ */
+ if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream))
+ continue;
+
ret = snd_soc_dai_hw_params(cpu_dai, substream, params);
if (ret < 0)
goto interface_err;
@@ -980,6 +1001,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
interface_err:
for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) {
+ if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream))
+ continue;
+
snd_soc_dai_hw_free(cpu_dai, substream);
cpu_dai->rate = 0;
}
@@ -1055,8 +1079,12 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
snd_soc_dai_hw_free(codec_dai, substream);
}
- for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream))
+ continue;
+
snd_soc_dai_hw_free(cpu_dai, substream);
+ }
mutex_unlock(&rtd->card->pcm_mutex);
return 0;
@@ -1807,6 +1835,13 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream,
int i;
for_each_rtd_cpu_dai(be, i, dai) {
+ /*
+ * Skip CPUs which don't support the current stream
+ * type. See soc_pcm_init_runtime_hw() for more details
+ */
+ if (!snd_soc_dai_stream_valid(dai, stream))
+ continue;
+
cpu_dai_drv = dai->driver;
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
cpu_stream = &cpu_dai_drv->playback;
@@ -1866,6 +1901,13 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream,
int i;
for_each_rtd_cpu_dai(be, i, dai) {
+ /*
+ * Skip CPUs which don't support the current stream
+ * type. See soc_pcm_init_runtime_hw() for more details
+ */
+ if (!snd_soc_dai_stream_valid(dai, stream))
+ continue;
+
cpu_dai_drv = dai->driver;
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
cpu_stream = &cpu_dai_drv->playback;
@@ -1911,6 +1953,13 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream)
int i;
for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ /*
+ * Skip CPUs which don't support the current stream
+ * type. See soc_pcm_init_runtime_hw() for more details
+ */
+ if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream))
+ continue;
+
cpu_dai_drv = cpu_dai->driver;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback);
--
2.17.1
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