Re: [RESEND x3][PATCH v4] arm64: dts: hi6220: Add k3-dma and i2s/hdmi audio support

[John Stultz]

On Mon, Jun 12, 2017 at 3:10 PM, Mark Brown <broonie@xxxxxxxxxx> wrote:
> On Mon, Jun 12, 2017 at 01:52:46PM -0700, John Stultz wrote:
>
>> +     sound {
>> +             compatible = "simple-audio-card";
>> +             simple-audio-card,name = "hikey-hdmi";
>
> Now the graph card has been merged it's probably a good idea to be using
> that, it's generally a better idea for pretty much all use cases.

I've taken a shot today trying to convert over to the audio-graph-card
method (which isn't yet upstream, but in -next), but I've been running
into some quirks.

Part of the issue is the adv7533 bridge already has a endpoint port
entry for the dsi output. So when I add the codec_endpoint port, it
wants the two port entries to be enumerated, so I get something like:

port@0 {
    adv7533_in: endpoint {
        remote-endpoint = <&dsi_out0>;
    };
};
port@1 {
    codec_endpoint: endpoint {
        remote-endpoint = <&i2s0_cpu_endpoint>;
    };
};

But this causes it to try to link to hdmi-hifi.1 (which doesn't exist)
instead of hdmi-hifi.0.

If I instead swap the entries, so the codec_endpoint is first on port
0, then the the audio link is properly setup, but the dsi
initialization falls over.

Any suggestions here?

thanks
-john