[alsa-devel] [PATCH v3 1/6] ASoC: fsl_ssi: Real hardware channels max number is 32

[Timur Tabi]

Arnaud Mouiche wrote:
> The max number of slots in TDM mode is 32:
> - Frame Rate Divider Control is a 5bit value
> - Time slot mask registers control 32 slots.
>
> Signed-off-by: Arnaud Mouiche<arnaud.mouiche at invoxia.com>
> ---
>   sound/soc/fsl/fsl_ssi.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
> index 40dfd8a..cfc78b8 100644
> --- a/sound/soc/fsl/fsl_ssi.c
> +++ b/sound/soc/fsl/fsl_ssi.c
> @@ -1167,14 +1167,14 @@ static struct snd_soc_dai_driver fsl_ssi_dai_template = {
>   	.playback = {
>   		.stream_name = "CPU-Playback",
>   		.channels_min = 1,
> -		.channels_max = 2,
> +		.channels_max = 32,

TDM mode is not normally used.  What happens if we're not in TDM mode, 
and the user tries to start a stream with more than 2 channels?