Re: [PATCH 2/7] dt-bindings: gpu: mali-utgard: add optional supply regulator

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Hi Rob,

Am Dienstag, 12. September 2017, 17:09:20 CEST schrieb Rob Herring:
> On Tue, Sep 05, 2017 at 12:57:34PM +0200, Heiko Stuebner wrote:
> > Mali GPUs have a separate supplying regulator in a lot of socs,
> > so describe a mali-supply property. The already described
> > operating points will likely also need access to this regulator.
> > 
> > Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
> > ---
> > 
> >  Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt
> > b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt index
> > 3b7f6f72f032..bcaa640c883f 100644
> > --- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt
> > +++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt
> > 
> > @@ -39,6 +39,9 @@ Optional properties:
> >      Memory region to allocate from, as defined in
> >      Documentation/devicetree/bindi/reserved-memory/reserved-memory.txt
> > 
> > +  - mali-supply : Phandle to regulator for the Mali device. Refer to
> > +    Documentation/devicetree/bindings/regulator/regulator.txt for
> > details.
> 
> Wouldn't a power domain be more appropriate?

At least on Rockchip socs there is a power-domain, but also the separate 
additional regulator. See the similar mali-midgard binding.


Heiko
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