linux-kernel - [PATCH 1/2] dt-bindings: msm: qcom,mdss: Document interconnect paths

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Message-Id: <20250406-msm8953-interconnect-v1-1-a23e22e236e0@lucaweiss.eu>
Date: Sun, 06 Apr 2025 22:55:03 +0200
From: Luca Weiss <luca@...aweiss.eu>
To: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, 
 Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 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>, Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Vladimir Lypak <vladimir.lypak@...il.com>
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, Luca Weiss <luca@...aweiss.eu>
Subject: [PATCH 1/2] dt-bindings: msm: qcom,mdss: Document interconnect
 paths

Document two interconnect paths found on the MDSS on MSM8953.

Signed-off-by: Luca Weiss <luca@...aweiss.eu>
---
There's also some interconnect paths defined in the mdp5 schema, both
drivers accept it. Newer mdss schemas seem to prefer mdp0-mem + cpu-cfg
in the mdss schema instead of in the dpu subnode. Since there's no
cpu-cfg defined with mdp5, I've added these paths here.
---
 Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml
index 7c6462caa4428bc284619275e61ddacc26d0c06e..db9c43b20e2a705bcaae4a9e0e11ce13be853b78 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,mdss.yaml
@@ -84,6 +84,18 @@ properties:
     items:
       - description: MDSS_CORE reset
 
+  interconnects:
+    minItems: 1
+    items:
+      - description: Interconnect path from mdp0 (or a single mdp) port to the data bus
+      - description: Interconnect path from CPU to the reg bus
+
+  interconnect-names:
+    minItems: 1
+    items:
+      - const: mdp0-mem
+      - const: cpu-cfg
+
 required:
   - compatible
   - reg

-- 
2.49.0