linux-kernel - Re: [PATCH v3 07/18] dt-bindings: msm: dsi-controller-main: Fix clock declarations

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Message-ID: <4f562df6-99ce-34fd-defb-217f2cdb5ba6@linaro.org>
Date:   Sat, 26 Nov 2022 15:41:38 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        devicetree@...r.kernel.org
Cc:     robdclark@...il.com, quic_abhinavk@...cinc.com,
        dmitry.baryshkov@...aro.org, sean@...rly.run, airlied@...il.com,
        daniel@...ll.ch, robh+dt@...nel.org, dianders@...omium.org,
        david@...t.cz, krzysztof.kozlowski+dt@...aro.org,
        swboyd@...omium.org, konrad.dybcio@...ainline.org,
        agross@...nel.org, andersson@...nel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 07/18] dt-bindings: msm: dsi-controller-main: Fix clock
 declarations

On 24/11/2022 01:47, Bryan O'Donoghue wrote:
> When converting from .txt to .yaml dt-binding descriptions we appear to
> have missed some of the previous detail on the number and names of
> permissible clocks.
> 
> Fix this by listing the clock descriptions against the clock names at a
> high level.
> 
> Fixes: 4dbe55c97741 ("dt-bindings: msm: dsi: add yaml schemas for DSI bindings")
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>  .../display/msm/dsi-controller-main.yaml      | 20 ++++++++++++-------
>  1 file changed, 13 insertions(+), 7 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
> index 0c09b9230b7f5..0fbb0c04f4b06 100644
> --- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
> @@ -36,13 +36,19 @@ properties:
>      maxItems: 1
>  
>    clocks:
> -    items:
> -      - description: Display byte clock
> -      - description: Display byte interface clock
> -      - description: Display pixel clock
> -      - description: Display core clock
> -      - description: Display AHB clock
> -      - description: Display AXI clock
> +    description: |
> +      Several clocks are used, depending on the variant. Typical ones are::
> +       - bus:: Display AHB clock.
> +       - byte:: Display byte clock.
> +       - byte_intf:: Display byte interface clock.
> +       - core:: Display core clock.
> +       - core_mss:: Core MultiMedia SubSystem clock.
> +       - iface:: Display AXI clock.
> +       - mdp_core:: MDP Core clock.
> +       - mnoc:: MNOC clock
> +       - pixel:: Display pixel clock.
> +    minItems: 6
> +    maxItems: 9

I don't understand why this is separate from your previous patch. At
patch #5 this part become wrong, so it cannot be separate, obviously.
IOW, Your patch #5 is buggy without this piece.

Best regards,
Krzysztof