diff mbox series

arm64: dts: allwinner: a64: Disable SPDIF by default

Message ID 20200422041502.7497-1-samuel@sholland.org (mailing list archive)
State New, archived
Headers show
Series arm64: dts: allwinner: a64: Disable SPDIF by default | expand

Commit Message

Samuel Holland April 22, 2020, 4:15 a.m. UTC
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@sholland.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 1 +
 1 file changed, 1 insertion(+)

Comments

Clément Péron April 22, 2020, 9:14 a.m. UTC | #1
Hi Samuel,

On Wed, 22 Apr 2020 at 06:11, Samuel Holland <samuel@sholland.org> 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@sholland.org>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 6f8c30d89b9b..6c233ff031c6 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -169,6 +169,7 @@ link0_codec: codec {
>         sound_spdif {
>                 compatible = "simple-audio-card";
>                 simple-audio-card,name = "On-board SPDIF";
> +               status = "disabled";
>
>                 simple-audio-card,cpu {
>                         sound-dai = <&spdif>;

This "On-board SPDIF" node is board specific and should be moved to
each board instead of be disabled here.

Maybe drop the node, and people who need it whould reintroduce it properly?

Regards,
Clement


> --
> 2.24.1
>
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Maxime Ripard April 22, 2020, 3:16 p.m. UTC | #2
Hi,

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@sholland.org>

The patch looks good, but don't we have some boards with SPDIF enabled that
should be modified accordingly?

Maxime
Samuel Holland April 22, 2020, 11:50 p.m. UTC | #3
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@sholland.org>
> 
> 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
Clément Péron April 23, 2020, 7:35 a.m. UTC | #4
Hi Samuel, Maxime,

On Thu, 23 Apr 2020 at 01:50, Samuel Holland <samuel@sholland.org> wrote:
>
> 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@sholland.org>
> >
> > 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:

This has been introduced by Marcus Cooper for the Pine64 audio extension.
https://store.pine64.org/?product=pine64-stereo-audio-dac-pot-board

So this should be moved to an overlay no?

Regards,
Clement

>
>         /* 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
>
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Maxime Ripard April 23, 2020, 9:49 a.m. UTC | #5
On Wed, Apr 22, 2020 at 06:50:54PM -0500, Samuel Holland wrote:
> 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@sholland.org>
> > 
> > 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.

Yeah, I agree, it's pretty much what we've been doing in other SoCs. Especially
if we don't have any DT in-tree using it, we don't really have any incentive to
make it common.

Maxime
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 6f8c30d89b9b..6c233ff031c6 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -169,6 +169,7 @@  link0_codec: codec {
 	sound_spdif {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "On-board SPDIF";
+		status = "disabled";
 
 		simple-audio-card,cpu {
 			sound-dai = <&spdif>;