Re: [PATCH 2/3] dt-bindings: pinctrl: qcom: Add sc7280 lpass lpi pinctrl compatible

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Quoting Srinivasa Rao Mandadapu (2021-10-27 00:47:52)
>
> On 10/7/2021 11:29 PM, Stephen Boyd wrote:
> > Quoting Srinivasa Rao Mandadapu (2021-10-07 06:48:38)
> >> Add device tree binding compatible name for Qualcomm SC7280 LPASS LPI pinctrl driver.
> >>
> >> Signed-off-by: Venkata Prasad Potturu <potturu@xxxxxxxxxxxxxx>
> >> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@xxxxxxxxxxxxxx>
> >> ---
> >>   Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml | 4 +++-
> >>   1 file changed, 3 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml
> >> index e47ebf9..578b283 100644
> >> --- a/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml
> >> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml
> >> @@ -16,7 +16,9 @@ description: |
> >>
> >>   properties:
> >>     compatible:
> >> -    const: qcom,sm8250-lpass-lpi-pinctrl
> >> +    enum:
> >> +      - qcom,sc7280-lpass-lpi-pinctrl
> >> +      - qcom,sm8250-lpass-lpi-pinctrl
> > I suspect we need to split the binding because the function list needs
> > to change. Can you make a whole new file that's probably largely a copy
> > of this file and/or extract the common bits into a meta schema and
> > include that in both the files? Then the function list can be different
> > and the clock property can be omitted in the sc7280 file.
>
> As most are common functions and fixed number of LPASS Lpi pin
> configuration across platforms,
>
> Only diff is ADSP bypass platforms 2 clocks are optional. Otherwise
> clock design also same for SC7280 and SM8250 based architecture.
>
> So I feel Keeping common file is better for now.

I don't agree. We want to be very strict about what is exposed. It needs
to match exactly what is supported on the SoC, not be a superset of it.



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