On Thu, May 19, 2022 at 9:23 PM Fabio Estevam <festevam@xxxxxxxxx> wrote: > Hi Shengjiu, > > On Thu, May 19, 2022 at 9:49 AM Shengjiu Wang <shengjiu.wang@xxxxxxx> > wrote: > > > diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c > > index fa950dde5310..dae16a14f177 100644 > > --- a/sound/soc/fsl/fsl_sai.c > > +++ b/sound/soc/fsl/fsl_sai.c > > @@ -437,6 +437,12 @@ static int fsl_sai_set_bclk(struct snd_soc_dai > *dai, bool tx, u32 freq) > > FSL_SAI_CR2_DIV_MASK | > FSL_SAI_CR2_BYP, > > savediv / 2 - 1); > > > > + if (sai->soc_data->max_register >= FSL_SAI_MCTL) { > > Isn't it a bit fragile to take this decision based on the number of > SAI registers in the SoC? > > What about adding a specific field in soc_data for such a purpose? > 'max_register' is one field in the soc_data, until now in our internal usage it seems ok for using this condition. Thanks. Best regards Wang shengjiu