The ASoC core assumes that the PCM component of the ASoC card transparently moves data around and does not impose any restrictions on the memory layout or the transfer speed. It ignores all fields from the snd_pcm_hardware struct for the PCM driver that are related to this. Setting these fields in the PCM driver might suggest otherwise though, so rather not set them.
Signed-off-by: Lars-Peter Clausen lars@metafoo.de Cc: Wan ZongShun mcuos.com@gmail.com --- sound/soc/nuc900/nuc900-pcm.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/sound/soc/nuc900/nuc900-pcm.c b/sound/soc/nuc900/nuc900-pcm.c index f588ee4..f434ed7 100644 --- a/sound/soc/nuc900/nuc900-pcm.c +++ b/sound/soc/nuc900/nuc900-pcm.c @@ -32,9 +32,6 @@ static const struct snd_pcm_hardware nuc900_pcm_hardware = { SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - .channels_min = 1, - .channels_max = 2, .buffer_bytes_max = 4*1024, .period_bytes_min = 1*1024, .period_bytes_max = 4*1024,