linux-kernel - Re: [PATCH v5 3/5] dt-bindings: display/msm: Document MDSS on QCS8300

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Message-ID: <deefg7w3ot6cd3woexfwagetmkg4nvu37f66h4ulbdqegdgi3u@plj6puxcsil4>
Date: Sat, 2 Aug 2025 12:56:24 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Yongxing Mou <quic_yongmou@...cinc.com>
Cc: Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, 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 v5 3/5] dt-bindings: display/msm: Document MDSS on QCS8300

On Wed, Jul 30, 2025 at 05:42:28PM +0800, Yongxing Mou wrote:
> Document the MDSS hardware found on the Qualcomm QCS8300 platform.
> 
> Signed-off-by: Yongxing Mou <quic_yongmou@...cinc.com>
> ---
>  .../bindings/display/msm/qcom,qcs8300-mdss.yaml    | 284 +++++++++++++++++++++
>  1 file changed, 284 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/qcom,qcs8300-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,qcs8300-mdss.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..ae4bc16395326bffd6c9eff92778d9f207209526
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/qcom,qcs8300-mdss.yaml
> @@ -0,0 +1,284 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/qcom,qcs8300-mdss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. QCS8300 Display MDSS
> +
> +maintainers:
> +  - Yongxing Mou <quic_yongmou@...cinc.com>
> +
> +description:
> +  QCS8300 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
> +  DPU display controller, DP interfaces and EDP etc.
> +
> +$ref: /schemas/display/msm/mdss-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: qcom,qcs8300-mdss
> +
> +  clocks:
> +    items:
> +      - description: Display AHB
> +      - description: Display hf AXI
> +      - description: Display core
> +
> +  iommus:
> +    maxItems: 1
> +
> +  interconnects:
> +    maxItems: 3
> +
> +  interconnect-names:
> +    maxItems: 3
> +
> +patternProperties:
> +  "^display-controller@[0-9a-f]+$":
> +    type: object
> +    additionalProperties: true
> +
> +    properties:
> +      compatible:
> +        items:
> +          - const: qcom,qcs8300-dpu
> +          - const: qcom,sa8775p-dpu

Use contains: instead of listing both of them

> +
> +  "^displayport-controller@[0-9a-f]+$":
> +    type: object
> +    additionalProperties: true
> +
> +    properties:
> +      compatible:
> +        items:
> +          - const: qcom,qcs8300-dp
> +
> +  "^phy@[0-9a-f]+$":
> +    type: object
> +    additionalProperties: true
> +    properties:
> +      compatible:
> +        items:
> +          - const: qcom,qcs8300-edp-phy
> +          - const: qcom,sa8775p-edp-phy

Use contains: instead of listing both of them

> +
> +required:
> +  - compatible
> +
> +unevaluatedProperties: false
> +

-- 
With best wishes
Dmitry