[PATCH v2 08/13] dt-bindings: imx: gpcv2: add support for optional resets

[Lucas Stach]

Hi Rob,

Am Dienstag, den 17.11.2020, 15:11 +0100 schrieb Lucas Stach:
Am Montag, den 09.11.2020, 14:15 -0600 schrieb Rob Herring:
> On Thu, Nov 05, 2020 at 06:44:29PM +0100, Lucas Stach wrote:
> > For some domains the resets of the devices in the domain are not
> > automatically triggered. Add an optional resets property to allow
> > the GPC driver to trigger those resets explicitly.
> > 
> > Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> > ---
> >  Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml | 7
> > +++++++
> >  1 file changed, 7 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/power/fsl,imx-
> > gpcv2.yaml b/Documentation/devicetree/bindings/power/fsl,imx-
> > gpcv2.yaml
> > index a96e6dbf1858..4330c73a2c30 100644
> > --- a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
> > +++ b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
> > @@ -66,6 +66,13 @@ properties:
> >  
> >            power-supply: true
> >  
> > +          resets:
> > +            description: |
> > +              A number of phandles to resets that need to be
> > asserted during
> > +              power-up sequencing of the domain.
> > +            minItems: 1
> > +            maxItems: 4
> 
> You need to define what each reset is.

I can't. The resets belong to devices located inside the power domain,
which need to be held in reset across the power-up sequence. So I
have no means to specify what each reset is in a generic power-domain
binding. Same situation as with the clocks in this binding actually.

Do you have any guidance on what do here? Is this binding okay with
this explanation, or do we need to do something different here?

Regards,
Lucas