Re: [PATCH] ASoC: core: Don't set platform name when of_node is set

From: Daniel Baluta
Date: Fri Mar 12 2021 - 03:34:14 EST


On Tue, Mar 9, 2021 at 5:38 PM Mark Brown <broonie@xxxxxxxxxx> wrote:
>
> On Tue, Mar 09, 2021 at 10:23:28AM +0200, Daniel Baluta wrote:
> > From: Daniel Baluta <daniel.baluta@xxxxxxx>
> >
> > Platform may be specified by either name or OF node but not
> > both.
> >
> > For OF node platforms (e.g i.MX) we end up with both platform name
> > and of_node set and sound card registration will fail with the error:
> >
> > asoc-simple-card sof-sound-wm8960: ASoC: Neither/both
> > platform name/of_node are set for sai1-wm8960-hifi
>
> This doesn't actually say what the change does.

Will send v2 with a better explanation.

>
> > - dai_link->platforms->name = component->name;
> > +
> > + if (!dai_link->platforms->of_node)
> > + dai_link->platforms->name = component->name;
>
> Why would we prefer the node name over something explicitly configured?

Not sure I follow your question. I think the difference stands in the
way we treat OF vs non-OF platforms.

With OF-platforms, dai_link->platforms->of_node is always set! So we
no longer need
to set dai->platforms->name.

Actually setting both of_node and name will make sound card
registration fail! In this is the case I'm trying
to fix here.