linux-kernel - [PATCH v10 2/6] dt-bindings: display/msm: dp-controller: document QCS8300 compatible

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Message-Id: <20250901-qcs8300_mdss-v10-2-87cab7e48479@oss.qualcomm.com>
Date: Mon, 01 Sep 2025 17:57:30 +0800
From: Yongxing Mou <yongxing.mou@....qualcomm.com>
To: 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>
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,
        Yongxing Mou <yongxing.mou@....qualcomm.com>
Subject: [PATCH v10 2/6] dt-bindings: display/msm: dp-controller: document
 QCS8300 compatible

Add compatible string for the DisplayPort controller found on the
Qualcomm QCS8300 SoC.

The Qualcomm QCS8300 platform comes with one DisplayPort controller
that supports 4 MST streams.

Signed-off-by: Yongxing Mou <yongxing.mou@....qualcomm.com>
---
 .../bindings/display/msm/dp-controller.yaml           | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index 8282f3ca45c8b18f159670a7d8c4d9515cdb62ca..4f0dd80aebd1958327a06d31664dd68e02e5ba94 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -18,6 +18,7 @@ properties:
   compatible:
     oneOf:
       - enum:
+          - qcom,qcs8300-dp
           - qcom,sa8775p-dp
           - qcom,sc7180-dp
           - qcom,sc7280-dp
@@ -195,6 +196,7 @@ allOf:
           compatible:
             contains:
               enum:
+                - qcom,qcs8300-dp
                 - qcom,sa8775p-dp
                 - qcom,x1e80100-dp
       then:
@@ -283,6 +285,23 @@ allOf:
           minItems: 6
           maxItems: 8
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              # QCS8300 only has one DP controller that supports 4
+              # streams MST.
+              - qcom,qcs8300-dp
+    then:
+      properties:
+        reg:
+          minItems: 9
+          maxItems: 9
+        clocks:
+          minItems: 8
+          maxItems: 8
+
 additionalProperties: false
 
 examples:

-- 
2.34.1