Re: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

[Marek Vasut]

On 8/10/23 21:30, Conor Dooley wrote:
> On Wed, Aug 02, 2023 at 11:51:17AM +0200, Guido Günther wrote:
> > Hi,
> > On Sun, Jul 30, 2023 at 09:41:20PM +0300, David Heidelberg wrote:
> > > i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
> > > requirement of power-domains, thou it's not required.
> > >
> > > Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property")
> > >
> > > Signed-off-by: David Heidelberg <david@xxxxxxx>
> > > ---
> > >   .../devicetree/bindings/display/fsl,lcdif.yaml        | 11 +++++++++--
> > >   1 file changed, 9 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > index fc11ab5fc465..2d868276b0f9 100644
> > > --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > @@ -129,8 +129,15 @@ allOf:
> > >                 - fsl,imx8mp-lcdif
> > >                 - fsl,imx93-lcdif
> > >       then:
> > > -      required:
> > > -        - power-domains
> > > +      if:
> > > +        properties:
> > > +          compatible:
> > > +            not:
> > > +              contains:
> > > +                const: fsl,imx8mq-lcdif
> > > +      then:
> > > +        required:
> > > +          - power-domains
> >
> > We currently enable the mipi power domain for the mipi dphy and nwl
> > bridge only but not for LCDIF itself assuming it's not needed (as there's
> > other outputs LCDIF can drive). I *think* this is correct but maybe
> > Marek or Liu can confirm?
>
> I'm happy to Ack this, but I've been sitting on it waiting to see if
> Marek or Liu popped up..

I don't see anything which would resemble power domains like on 
MX8MM/N/P on the MQ MXSFB, there are such domains for the VPU and DCSS, 
but not MXSFB. So

Reviewed-by: Marek Vasut <marex@xxxxxxx>