linux-kernel - Re: [PATCH v1 2/2] dt-bindings: Add SC7280 compatible string

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Date:   Mon, 16 Aug 2021 11:01:43 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Sankeerth Billakanti <sbillaka@...eaurora.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        robdclark@...il.com, seanpaul@...omium.org, swboyd@...omium.org,
        kalyan_t@...eaurora.org, abhinavk@...eaurora.org,
        dianders@...omium.org, khsieh@...eaurora.org,
        mkrishn@...eaurora.org
Subject: Re: [PATCH v1 2/2] dt-bindings: Add SC7280 compatible string

On Thu, Aug 12, 2021 at 05:38:02AM +0530, Sankeerth Billakanti wrote:
> The Qualcomm SC7280 platform supports an eDP controller, add
> compatible string for it to msm/binding.
> 
> Signed-off-by: Sankeerth Billakanti <sbillaka@...eaurora.org>
> ---
>  Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index 64d8d9e..23b78ac 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -17,6 +17,9 @@ properties:
>    compatible:
>      enum:
>        - qcom,sc7180-dp
> +      - qcom,sc8180x-dp
> +      - qcom,sc8180x-edp
> +      - qcom,sc7280-edp

This adds compatible strings for sc8180x and sc7280 (e)DP, however the
commit message only mentions sc7280. So either the commit message needs
and update or the sc8180x compatibles should be removed.

The driver change (https://patchwork.kernel.org/project/linux-arm-msm/patch/1628726882-27841-2-git-send-email-sbillaka@codeaurora.org/)
adds some (currently unused) 'io_start' addresses which are hardcoded,
I wonder if these should be in the device tree instead (and 'num_dp'
too?), if they are needed at all.