linux-kernel - [PATCH] dt-bindings: drm/bridge: Update reg-name list for cdns,mhdp8546 compatible

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251107131535.1841393-1-h-shenoy@ti.com>
Date: Fri, 7 Nov 2025 18:45:35 +0530
From: Harikrishna Shenoy <h-shenoy@...com>
To: <robh@...nel.org>, <Laurent.pinchart@...asonboard.com>,
	<airlied@...il.com>, <andrzej.hajda@...el.com>, <conor+dt@...nel.org>,
	<devarsht@...com>, <devicetree@...r.kernel.org>,
	<dri-devel@...ts.freedesktop.org>, <h-shenoy@...com>,
	<jernej.skrabec@...il.com>, <jonas@...boo.se>, <krzk+dt@...nel.org>,
	<linux-kernel@...r.kernel.org>, <maarten.lankhorst@...ux.intel.com>,
	<mripard@...nel.org>, <neil.armstrong@...aro.org>, <rfoss@...nel.org>,
	<s-jain1@...com>, <simona@...ll.ch>, <sjakhade@...ence.com>,
	<tzimmermann@...e.de>, <u-kumar1@...com>, <yamonkar@...ence.com>,
	<pthombar@...ence.com>
Subject: [PATCH] dt-bindings: drm/bridge: Update reg-name list for cdns,mhdp8546 compatible

Remove j721e-intg register name from reg-name list for cdns,mhdp8546
compatible. The j721e-intg registers are specific to TI SoCs, so they
are not required for compatibles other than ti,j721e-mhdp8546.

Move the register name constraints to the appropriate compatibility
sections to ensure the correct register names are used with each
compatible value.

Fixes: 7169d082e7e6 ("dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP")
Signed-off-by: Harikrishna Shenoy <h-shenoy@...com>
---

Links to some discussions pointing to need for a fixes patch: 
https://lore.kernel.org/all/20250903220312.GA2903503-robh@kernel.org/
https://lore.kernel.org/all/d2367789-6b54-4fc2-bb7c-609c0fe084d3@ti.com/

 .../bindings/display/bridge/cdns,mhdp8546.yaml      | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
index c2b369456e4e2..2fdb4f7108ed5 100644
--- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
@@ -30,10 +30,6 @@ properties:
 
   reg-names:
     minItems: 1
-    items:
-      - const: mhdptx
-      - const: j721e-intg
-      - const: mhdptx-sapb
 
   clocks:
     maxItems: 1
@@ -103,7 +99,10 @@ allOf:
           maxItems: 3
         reg-names:
           minItems: 2
-          maxItems: 3
+          items:
+            - const: mhdptx
+            - const: j721e-intg
+            - const: mhdptx-sapb
     else:
       properties:
         reg:
@@ -111,7 +110,9 @@ allOf:
           maxItems: 2
         reg-names:
           minItems: 1
-          maxItems: 2
+          items:
+            - const: mhdptx
+            - const: mhdptx-sapb
 
 required:
   - compatible
-- 
2.34.1