linux-kernel - [PATCH] dt-bindings: display/msm: dp-controller: allow eDP for X1E8 and SA8775P

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Message-Id: <20250719091445.3126775-1-dmitry.baryshkov@oss.qualcomm.com>
Date: Sat, 19 Jul 2025 12:14:45 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Jessica Zhang <jessica.zhang@....qualcomm.com>
Cc: Dmitry Baryshkov <lumag@...nel.org>, Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...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 <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Abel Vesa <abel.vesa@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Mahadevan <quic_mahap@...cinc.com>,
        Krishna Manikandan <quic_mkrishn@...cinc.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Rob Clark <robin.clark@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Danila Tikhonov <danila@...xyga.com>,
        cros-qcom-dts-watchers@...omium.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,
        linux-clk@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Yongxing Mou <quic_yongmou@...cinc.com>
Subject: [PATCH] dt-bindings: display/msm: dp-controller: allow eDP for X1E8 and SA8775P


On Qualcomm SA8775P and X1E80100 the DP controller might be driving
either a DisplayPort or a eDP sink (depending on the PHY that is tied to
the controller). Reflect that in the schema.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---

Jessica, your X1E8 patch also triggers warnings for several X1E8-based
laptops. Please include this patch into the series (either separately
or, better, by squashing into your first patch).

---
 .../bindings/display/msm/dp-controller.yaml   | 26 ++++++++++++++-----
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index 4676aa8db2f4..55e37ec74591 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -176,12 +176,26 @@ allOf:
       properties:
         "#sound-dai-cells": false
     else:
-      properties:
-        aux-bus: false
-        reg:
-          minItems: 5
-      required:
-        - "#sound-dai-cells"
+      if:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - qcom,sa8775p-dp
+                - qcom,x1e80100-dp
+      then:
+        oneOf:
+          - required:
+              - aux-bus
+          - required:
+              - "#sound-dai-cells"
+      else:
+        properties:
+          aux-bus: false
+          reg:
+            minItems: 5
+        required:
+          - "#sound-dai-cells"
 
 additionalProperties: false
 
-- 
2.39.5