RE: [RFC][PATCH] ASoC: simple-card: Merge single and muti DAI link code.

From: Li.Xiubo@xxxxxxxxxxxxx
Date: Sun Aug 31 2014 - 22:57:27 EST


> > ---
> >
> > Hi,
> >
> > This patch will break the old DT, so i just send one RFC version, and
> > will add the old DT patches in next version if this patch can work
> > well.
> >
> > Any comments and advices are welcome.
>
> Hi Xiubo,
>
> My DT is
>
> sound {
> compatible = "simple-audio-card";
> simple-audio-card,name = "Cubox Audio";
>
> simple-audio-card,dai-link@0 { /* I2S - HDMI */
> format = "i2s";
> cpu {
> sound-dai = <&audio1 0>;
> };
> codec {
> sound-dai = <&hdmi 0>;
> };
> };
> ...
>
> I was getting 0x1001 as the format (codec clk & FRM master and i2s').
>
> With your patch, I get 0x4000 (clk master & frame slave and no format).
>

Well, yes, If your DAI link's bit clock & frame using the CODEC as master,
You should specify it in your DAI link node like:

> sound {
> compatible = "simple-audio-card";
> simple-audio-card,name = "Cubox Audio";
>
> simple-audio-card,dai-link@0 { /* I2S - HDMI */
> format = "i2s";
> cpu {
> sound-dai = <&audio1 0>;
> };
> codec {
> sound-dai = <&hdmi 0>;
> };

bitclock-master;
frame-master;
> };
> ...

And the reason for cannot parsing the "i2s" format is that there is one bug
in this patch and I will fix it in next version.

Thanks very much for your comment.

BRs
Xiubo