On Wed, Nov 22, 2017 at 12:55:14AM +0100, Maciej S. Szmigiero wrote:
> In AC'97 mode we configure and start SSI RX / TX on probe path via
> a call to _fsl_ssi_set_dai_fmt() function.
> We don't need to call this function again later and in fact don't want to
> do it since this function temporarily sets STCR, SRCR and SCR to some
> intermediate values.
>
> Signed-off-by: Maciej S. Szmigiero <mail@xxxxxxxxxxxxxxxxxxxxx>
Acked-by: Nicolin Chen <nicoleotsuka@xxxxxxxxx>
> ---
> Changes from v1: The SACCST setup code was split out into a separate
> commit.
>
> sound/soc/fsl/fsl_ssi.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
> index 375aaaf6080d..70df6bf832df 100644
> --- a/sound/soc/fsl/fsl_ssi.c
> +++ b/sound/soc/fsl/fsl_ssi.c
> @@ -1116,6 +1116,9 @@ static int fsl_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
> {
> struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);
>
> + if (fsl_ssi_is_ac97(ssi_private))
> + return 0;
> +
> return _fsl_ssi_set_dai_fmt(cpu_dai->dev, ssi_private, fmt);
> }
>
>
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