RE: [PATCH v3 2/3] dt-bindings: remoteproc: qcom: Add SC7280 WPSS support

From: pillair
Date: Wed Sep 22 2021 - 01:03:30 EST




> -----Original Message-----
> From: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Sent: Wednesday, September 22, 2021 5:08 AM
> To: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> Cc: Rakesh Pillai <pillair@xxxxxxxxxxxxxx>; agross@xxxxxxxxxx;
> mathieu.poirier@xxxxxxxxxx; ohad@xxxxxxxxxx; p.zabel@xxxxxxxxxxxxxx;
> robh+dt@xxxxxxxxxx; linux-arm-msm@xxxxxxxxxxxxxxx;
> devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> sibis@xxxxxxxxxxxxxx; mpubbise@xxxxxxxxxxxxxx; kuabhs@xxxxxxxxxxxx
> Subject: Re: [PATCH v3 2/3] dt-bindings: remoteproc: qcom: Add SC7280
> WPSS support
>
> On Thu 16 Sep 23:25 PDT 2021, Stephen Boyd wrote:
>
> > Quoting Rakesh Pillai (2021-09-16 09:55:52)
> > > @@ -78,6 +84,10 @@ properties:
> > > Phandle reference to a syscon representing TCSR followed by the
> > > three offsets within syscon for q6, modem and nc halt
registers.
> > >
> > > + qcom,qmp:
> > > + $ref: /schemas/types.yaml#/definitions/phandle
> > > + description: Reference to the AOSS side-channel message RAM.
> > > +
> > > qcom,smem-states:
> > > $ref: /schemas/types.yaml#/definitions/phandle-array
> > > description: States used by the AP to signal the Hexagon core
> > > @@ -117,6 +127,33 @@ allOf:
> > > compatible:
> > > contains:
> > > enum:
> > > + - qcom,sc7280-wpss-pil
> > > + then:
> >
> > Honestly I find this if/else to be a huge tangle. Why not split the
> > binding so that each compatible is a different file? Then it is easier
> > to read and see what properties to set.
> >
>
> Further more, the way we express the non-PAS properties in the PAS node
> in the dtsi and then switch the compatible in the non-PAS devices means
that
> we're causing validation errors.
>
> So we should explode this binding to get rid of the conditionals and to
> describe the "superset" of the PAS and non-PAS compatibles, for platforms
> where this is applicable.
>
> Regards,
> Bjorn

Hi Bjorn,

I have posted v4 for this patchseries with wpss dt-bindings added as a
separate file.
Can you please check v4 ?

Thanks,
Rakesh Pillai.


>
> > > + properties:
> > > + interrupts-extended:
> > > + maxItems: 6
> > > + items:
> > > + - description: Watchdog interrupt
> > > + - description: Fatal interrupt
> > > + - description: Ready interrupt