Re: [PATCH] arm64: dts: allwinner: a64: Disable SPDIF by default

From: Samuel Holland
Date: Wed Apr 22 2020 - 19:51:12 EST


Maxime,

On 4/22/20 10:16 AM, Maxime Ripard wrote:
> On Tue, Apr 21, 2020 at 11:15:02PM -0500, Samuel Holland wrote:
>> As of v5.7-rc2, Linux now prints the following message at boot:
>>
>> [ 33.848525] platform sound_spdif: deferred probe pending
>>
>> This is because &sound_spdif is waiting on its DAI link component
>> &spdif to probe, but &spdif is disabled in the DTS. Disable the
>> audio card as well to match.
>>
>> Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx>
>
> The patch looks good, but don't we have some boards with SPDIF enabled that
> should be modified accordingly?

I don't see any in-tree. The only A64 DTS that references &spdif at all is
sun50i-a64-pine64.dts, which explicitly disables it:

/* On Euler connector */
&spdif {
status = "disabled";
};

I'm leaning toward agreeing with Clement that the sound_spdif node (and also
spdif_out) should be removed altogether from the A64 DTSI.

Regards,
Samuel