[alsa-devel] [PATCH] ASoC: wm8524: Add support S32_LE

[Charles Keepax]

On Fri, Nov 01, 2019 at 06:34:54AM +0000, S.j. Wang wrote:
> Allow 32bit sample with this codec.
> 
> Signed-off-by: Shengjiu Wang <shengjiu.wang at nxp.com>
> ---
>  sound/soc/codecs/wm8524.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/soc/codecs/wm8524.c b/sound/soc/codecs/wm8524.c
> index 91e3d1570c45..4e9ab542f648 100644
> --- a/sound/soc/codecs/wm8524.c
> +++ b/sound/soc/codecs/wm8524.c
> @@ -159,7 +159,9 @@ static int wm8524_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
>  
>  #define WM8524_RATES SNDRV_PCM_RATE_8000_192000
>  
> -#define WM8524_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
> +#define WM8524_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
> +			SNDRV_PCM_FMTBIT_S24_LE |\
> +			SNDRV_PCM_FMTBIT_S32_LE)
>  

The device doesn't actually support 32bit though, I guess it will
ignore the extra LSBs so it should work. But is that really
supporting 32 bit?

Thanks,
Charles