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Message-ID: <a90dcd83-d158-4ec1-9186-0658c108afef@linaro.org>
Date: Tue, 27 Feb 2024 16:45:25 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Abel Vesa <abel.vesa@...aro.org>, Rob Clark <robdclark@...il.com>,
 Abhinav Kumar <quic_abhinavk@...cinc.com>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Sean Paul <sean@...rly.run>,
 Marijn Suijten <marijn.suijten@...ainline.org>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Kuogee Hsieh <quic_khsieh@...cinc.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Johan Hovold <johan@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/3] dt-bindings: display: msm: dp-controller: document
 X1E80100 compatible

On 22/02/2024 16:55, Abel Vesa wrote:
> Add the X1E80100 to the list of compatibles and document the is-edp
> flag. The controllers are expected to operate in DP mode by default,
> and this flag can be used to select eDP mode.
> 
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> ---
>  Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index ae53cbfb2193..ed11852e403d 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -27,6 +27,7 @@ properties:
>            - qcom,sdm845-dp
>            - qcom,sm8350-dp
>            - qcom,sm8650-dp
> +          - qcom,x1e80100-dp
>        - items:
>            - enum:
>                - qcom,sm8150-dp
> @@ -73,6 +74,11 @@ properties:
>        - description: phy 0 parent
>        - description: phy 1 parent
>  
> +  is-edp:
> +    $ref: /schemas/types.yaml#/definitions/flag
> +    description:
> +      Tells the controller to switch to eDP mode


DP controller cannot be edp, so property "is-edp" is confusing. Probably
you want to choose some phy mode, so you should rather use "phy-mode"
property. I am sure we've been here...

Anyway, if you define completely new property without vendor prefix,
that's a generic property, so you need to put it in some common schema
for all Display Controllers, not only Qualcomm.


Best regards,
Krzysztof


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