Previous updates to set dailink capabilities and check dailink
capabilities were based on a flawed assumption that all dais support
the same capabilities as the dailink. This is true for TDM
configurations but existing configurations use an amplifier and a
capture device on the same dailink, and the tests would prevent the
card from probing.
This patch modifies the snd_soc_dai_link_set_capabilities()
helper so that the dpcm_playback (resp. dpcm_capture) dailink
capabilities are set if at least one dai supports playback (resp. capture).
Likewise the checks are modified so that an error is reported only
when dpcm_playback (resp. dpcm_capture) is set but none of the CPU
DAIs support playback (resp. capture).
Fixes: 25612477d20b5 ('ASoC: soc-dai: set dai_link dpcm_ flags with a helper')
Fixes: b73287f0b0745 ('ASoC: soc-pcm: dpcm: fix playback/capture checks')
Suggested-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/soc-dai.c | 16 +++++++++-------
sound/soc/soc-pcm.c | 42 ++++++++++++++++++++++++------------------
2 files changed, 33 insertions(+), 25 deletions(-)
diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c
index 98f0c98b06bb..ef1700e5e1bf 100644
--- a/sound/soc/soc-dai.c
+++ b/sound/soc/soc-dai.c
@@ -402,28 +402,30 @@ void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link)
struct snd_soc_dai_link_component *codec;
struct snd_soc_dai *dai;
bool supported[SNDRV_PCM_STREAM_LAST + 1];
+ bool supported_cpu;
+ bool supported_codec;
int direction;
int i;
for_each_pcm_streams(direction) {
- supported[direction] = true;
+ supported_cpu = false;
+ supported_codec = false;
for_each_link_cpus(dai_link, i, cpu) {
dai = snd_soc_find_dai(cpu);
- if (!dai || !snd_soc_dai_stream_valid(dai, direction)) {
- supported[direction] = false;
+ if (dai && snd_soc_dai_stream_valid(dai, direction)) {
+ supported_cpu = true;
break;
}
}
- if (!supported[direction])
- continue;
for_each_link_codecs(dai_link, i, codec) {
dai = snd_soc_find_dai(codec);
- if (!dai || !snd_soc_dai_stream_valid(dai, direction)) {
- supported[direction] = false;
+ if (dai && snd_soc_dai_stream_valid(dai, direction)) {
+ supported_codec = true;
break;
}
}
+ supported[direction] = supported_cpu && supported_codec;
}
dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK];
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index f2c7c85ad40c..aac61df0c50e 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2743,30 +2743,36 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
if (rtd->dai_link->dpcm_playback) {
stream = SNDRV_PCM_STREAM_PLAYBACK;
- for_each_rtd_cpu_dais(rtd, i, cpu_dai)
- if (!snd_soc_dai_stream_valid(cpu_dai,
- stream)) {
- dev_err(rtd->card->dev,
- "CPU DAI %s for rtd %s does not support playback\n",
- cpu_dai->name,
- rtd->dai_link->stream_name);
- return -EINVAL;
+ for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
+ if (snd_soc_dai_stream_valid(cpu_dai, stream)) {
+ playback = 1;
+ break;
}
- playback = 1;
+ }
+
+ if (!playback) {
+ dev_err(rtd->card->dev,
+ "No CPU DAIs support playback for stream %s\n",
+ rtd->dai_link->stream_name);
+ return -EINVAL;
+ }
}
if (rtd->dai_link->dpcm_capture) {
stream = SNDRV_PCM_STREAM_CAPTURE;
- for_each_rtd_cpu_dais(rtd, i, cpu_dai)
- if (!snd_soc_dai_stream_valid(cpu_dai,
- stream)) {
- dev_err(rtd->card->dev,
- "CPU DAI %s for rtd %s does not support capture\n",
- cpu_dai->name,
- rtd->dai_link->stream_name);
- return -EINVAL;
+ for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
+ if (snd_soc_dai_stream_valid(cpu_dai, stream)) {
+ capture = 1;
+ break;
}
- capture = 1;
+ }
+
+ if (!capture) {
+ dev_err(rtd->card->dev,
+ "No CPU DAIs support capture for stream %s\n",
+ rtd->dai_link->stream_name);
+ return -EINVAL;
+ }
}
} else {
/* Adapt stream for codec2codec links */
--
2.25.1
