[alsa-devel] [PATCH RFC 6/6] ASoC: samsung: Add DT bindings documentation for TM2 sound subsystem

[Rob Herring]

On Wed, Jun 15, 2016 at 4:47 AM, Mark Brown <broonie at kernel.org> wrote:
> On Tue, Jun 14, 2016 at 06:32:24PM -0500, Rob Herring wrote:
>> On Mon, Jun 13, 2016 at 12:52:40PM +0200, Sylwester Nawrocki wrote:
>
>> > +Samsung Exynos5433 TM2(E) audio complex with WM5110 codec
>
>> > +Required properties:
>
>> > + - compatible : "samsung,tm2-audio"
>
>> SoC specific compatible string please.
>
> No, this isn't a SoC IP - this is a binding for a board called TM2(E)
> which has a bunch of chips on it including this.

Okay, good.

>
>> > + - samsung,i2s-controller : the phandle of the I2S controller
>> > + - samsung,speaker-amplifier : the phandle of the MAX98504 amplifier
>
>> We should have standard properties for these. 2nd ones I've seen today.
>
> No, these aren't fixed roles in a system, you couldn't have standard
> handling for them.

What do you mean? It is silly for us to put vendor prefixes on all of
these. There are dozens of examples in the binding docs of
<vendor>,i2s-controller and <vendor>,audio-codec. Yes, dropping just
the vendor prefix doesn't buy much (maybe some string space), but it
certainly adds nothing.

Rob