[alsa-devel] [PATCH] ASoC: simple-card: overwrite DAIFMT_MASTER of cpu_dai->fmt

[Kuninori Morimoto]

Hi Nicolin

> > static struct asoc_simple_card_info fsi_wm8978_info = {
> > 	...
> > 	.daifmt		= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBM_CFM,
> > 	.cpu_dai = {
> > 		...
> > 		.fmt	= SND_SOC_DAIFMT_IB_NF,
> > 	},
> > 	.codec_dai = {
> > 		...
> > 		.fmt	= SND_SOC_DAIFMT_NB_NF,
> > 	},
> > };
> 
> This would be better imo.
> 
> And ideally we should also keep the xB_xF identical like Mark said _identical_.
> Just some cpu dai drivers might do an incorrect settings for it, like regarding
> NB as sampling on rising edge and IF as active low (I'm saying this without a
> careful check though), which results people need to re-set bitclock-invert and
> frame-invert if they switch the DAI format from left_j to i2s for example.

Wow... I had misunderstood...
I need to send fixup patch after lunch.