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| /openbmc/linux/sound/soc/ |
| H A D | soc-pcm.c | diff 092830cf550667d5fa6286605167d232f2c1f61e Mon May 29 19:49:43 CDT 2023 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> ASoC: soc-pcm.c: indicate error if stream has no playback no capture
soc_get_playback_capture() (A) returns number of substreams for
playback/capture (B).
ASoC will probe the Sound Card and mapps CPU<->Codec pair.
(A) static int soc_get_playback_capture(...,
(B) int *playback, int *capture)
{
...
if (rtd->dai_link->playback_only) {
*playback = 1;
*capture = 0;
}
if (rtd->dai_link->capture_only) {
*playback = 0;
*capture = 1;
}
(C)
return 0;
}
But it might be no playback no capture if it returns playback=0, capture=0.
It is very difficult to notice about it. This patch indicates error at (C)
then.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87y1l6zlqx.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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