From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
[ Upstream commit 4f8721542f7b75954bfad98c51aa59d683d35b50 ]
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@baylibre.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20200723180533.220312-1-pierre-louis.bossart@linux... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 457159975b01a..cecbbed2de9d5 100644 --- a/sound/soc/soc-dai.c +++ b/sound/soc/soc-dai.c @@ -400,28 +400,30 @@ 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 c517064f5391b..74baf1fce053f 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2802,30 +2802,36 @@ 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 */