linux-kernel - [PATCH v7 6/9] dt-bindings: display/msm: drop assigned-clock-parents for dp controller

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Message-Id: <20250829-dp_mst_bindings-v7-6-2b268a43917b@oss.qualcomm.com>
Date: Fri, 29 Aug 2025 01:48:19 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....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>,
        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>, Mahadevan <quic_mahap@...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,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH v7 6/9] dt-bindings: display/msm: drop
 assigned-clock-parents for dp controller

From: Abhinav Kumar <quic_abhinavk@...cinc.com>

DP controller schema documents assigned-clocks and
assigned-clock-parents. However these assignments should not be a part
of the ABI: there are no actual requirements on the order of the
assignments, MST cases require different number of clocks to be
assigned, etc.

Instead of fixing up the documentation, drop the assigned-clock-parents
and assigned-clocks from the bindings. The generic clock/clock.yaml
already covers these properties.

Suggested-by: Krzysztof Kozlowski <krzk@...nel.org>
Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
Signed-off-by: Jessica Zhang <jessica.zhang@....qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@...nel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
 .../devicetree/bindings/display/msm/dp-controller.yaml         | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index 6316c929fd66588b83d3abaf01d83a6b49b35e80..afe01332d66c3c2e6e5848ce3d864079ce71f3cd 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -86,16 +86,6 @@ properties:
       - const: ctrl_link_iface
       - const: stream_pixel
 
-  assigned-clocks:
-    items:
-      - description: link clock source
-      - description: pixel clock source
-
-  assigned-clock-parents:
-    items:
-      - description: phy 0 parent
-      - description: phy 1 parent
-
   phys:
     maxItems: 1
 

-- 
2.47.2