From 467fece8fbc6774a3a3bd0981e1a342fb5022706 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 22 Jul 2019 10:36:16 +0900 Subject: ASoC: soc-dai: move snd_soc_dai_stream_valid() to soc-dai.c snd_soc_dai_stream_valid() is function to check stream validity. But, some code is using it, some code are checking stream->channels_min directly. Doing samethings by different method is confusable. This patch uses same funcntion for same purpose. Signed-off-by: Kuninori Morimoto Link: https://lore.kernel.org/r/87ftmyhmzz.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- sound/soc/soc-dai.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'sound/soc/soc-dai.c') diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c index e6f161b9f975..1c7f63871c1d 100644 --- a/sound/soc/soc-dai.c +++ b/sound/soc/soc-dai.c @@ -387,3 +387,21 @@ int snd_soc_dai_compress_new(struct snd_soc_dai *dai, return dai->driver->compress_new(rtd, num); return -ENOTSUPP; } + +/* + * snd_soc_dai_stream_valid() - check if a DAI supports the given stream + * + * Returns true if the DAI supports the indicated stream type. + */ +bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir) +{ + struct snd_soc_pcm_stream *stream; + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + stream = &dai->driver->playback; + else + stream = &dai->driver->capture; + + /* If the codec specifies any channels at all, it supports the stream */ + return stream->channels_min; +} -- cgit v1.2.3