linux-kernel - Re: [PATCH v2 2/2] dt-bindings: clock: add QCOM SM8350 display clock bindings

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Date:   Wed, 02 Jun 2021 14:27:35 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Jonathan Marek <jonathan@...ek.ca>, linux-arm-msm@...r.kernel.org
Cc:     Rob Herring <robh@...nel.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] dt-bindings: clock: add QCOM SM8350 display clock bindings

Quoting Jonathan Marek (2021-05-18 17:18:02)
> Add sm8350 DISPCC bindings, which are simply a symlink to the sm8250
> bindings. Update the documentation with the new compatible.
> 
> Signed-off-by: Jonathan Marek <jonathan@...ek.ca>
> Reviewed-by: Rob Herring <robh@...nel.org>
> ---
>  .../devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml       | 6 ++++--
>  include/dt-bindings/clock/qcom,dispcc-sm8350.h              | 1 +

>  2 files changed, 5 insertions(+), 2 deletions(-)
>  create mode 120000 include/dt-bindings/clock/qcom,dispcc-sm8350.h

Why the symlink? Can we have the dt authors use the existing header file
instead?

> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
> index 0cdf53f41f84..8f414642445e 100644
> --- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
> +++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
> @@ -4,24 +4,26 @@
>  $id: http://devicetree.org/schemas/clock/qcom,dispcc-sm8x50.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>  
> -title: Qualcomm Display Clock & Reset Controller Binding for SM8150/SM8250
> +title: Qualcomm Display Clock & Reset Controller Binding for SM8150/SM8250/SM8350

Maybe just "Binding for SM8x50 SoCs"

>  
>  maintainers:
>    - Jonathan Marek <jonathan@...ek.ca>
>  
>  description: |
>    Qualcomm display clock control module which supports the clocks, resets and
> -  power domains on SM8150 and SM8250.
> +  power domains on SM8150/SM8250/SM8350.

same 8x50 comment.

>  
>    See also:
>      dt-bindings/clock/qcom,dispcc-sm8150.h
>      dt-bindings/clock/qcom,dispcc-sm8250.h
> +    dt-bindings/clock/qcom,dispcc-sm8350.h
>  
>  properties:
>    compatible:
>      enum:
>        - qcom,sm8150-dispcc
>        - qcom,sm8250-dispcc
> +      - qcom,sm8350-dispcc
>  
>    clocks:
>      items:
> diff --git a/include/dt-bindings/clock/qcom,dispcc-sm8350.h b/include/dt-bindings/clock/qcom,dispcc-sm8350.h
> new file mode 120000
> index 000000000000..0312b4544acb
> --- /dev/null
> +++ b/include/dt-bindings/clock/qcom,dispcc-sm8350.h
> @@ -0,0 +1 @@
> +qcom,dispcc-sm8250.h
> \ No newline at end of file