Re: [PATCH v3 3/6] dt-bindings: clock: imx8mp: Add reset-controller sub-node

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Quoting Shengjiu Wang (2024-05-14 19:47:57)
> On Wed, May 15, 2024 at 5:09 AM Stephen Boyd <sboyd@xxxxxxxxxx> wrote:
> >
> > Quoting Conor Dooley (2024-05-14 11:06:14)
> > > On Tue, May 14, 2024 at 05:33:27PM +0800, Shengjiu Wang wrote:
> > > > diff --git a/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml b/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
> > > > index 0a6dc1a6e122..a403ace4d11f 100644
> > > > --- a/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
> > > > +++ b/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
> > > > @@ -15,7 +15,10 @@ description: |
> > > >
> > > >  properties:
> > > >    compatible:
> > > > -    const: fsl,imx8mp-audio-blk-ctrl
> > > > +    items:
> > > > +      - const: fsl,imx8mp-audio-blk-ctrl
> > > > +      - const: syscon
> > > > +      - const: simple-mfd
> > > >
> > > >    reg:
> > > >      maxItems: 1
> > > > @@ -44,6 +47,11 @@ properties:
> > > >        ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8mp-clock.h
> > > >        for the full list of i.MX8MP IMX8MP_CLK_AUDIOMIX_ clock IDs.
> > > >
> > > > +  reset-controller:
> > > > +    type: object
> > > > +    $ref: /schemas/reset/fsl,imx8mp-audiomix-reset.yaml#
> > > > +    description: The child reset devices of AudioMIX Block Control.
> > >
> > > Why not just set #reset-cells = <1> in the existing node? IIRC it was
> > > already suggested to you to do that and use auxdev to set up the reset
> > > driver.
> >
> > Yes, do that.
> 
> Can I know why sub nodes can't be used? the relationship of parent and
> child devices looks better with sub nodes.

Don't make nodes for drivers. Only make nodes for devices. This device
is multi-function, but is still only a single device.





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