linux-kernel - [PATCH v3] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for DSC

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Message-ID: <20250908054609.1113360-1-h-shenoy@ti.com>
Date: Mon, 8 Sep 2025 11:16:09 +0530
From: Harikrishna Shenoy <h-shenoy@...com>
To: <andrzej.hajda@...el.com>, <neil.armstrong@...aro.org>, <rfoss@...nel.org>,
        <Laurent.pinchart@...asonboard.com>, <jonas@...boo.se>,
        <jernej.skrabec@...il.com>, <airlied@...il.com>, <simona@...ll.ch>,
        <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
        <tzimmermann@...e.de>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <sjakhade@...ence.com>, <yamonkar@...ence.com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devarsht@...com>, <u-kumar1@...com>,
        <s-jain1@...com>
CC: <h-shenoy@...com>
Subject: [PATCH v3] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for DSC

From: Swapnil Jakhade <sjakhade@...ence.com>

Add binding changes for DSC(Display Stream Compression) in the MHDP8546
DPI/DP bridge.

Signed-off-by: Swapnil Jakhade <sjakhade@...ence.com>
Signed-off-by: Harikrishna Shenoy <h-shenoy@...com>
---
Changelog v2 --> v3:
-Update the name of dsc register block.
-Add the reg-name list in conditional based on compatible.
Link to v2- https://lore.kernel.org/all/20250903111357.2605199-1-h-shenoy@ti.com/

 .../display/bridge/cdns,mhdp8546.yaml         | 20 +++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
index c2b369456e4e..eb51f9595da8 100644
--- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
@@ -27,6 +27,8 @@ properties:
           Register block for DSS_EDP0_INTG_CFG_VP registers in case of TI J7 SoCs.
       - description:
           Register block of mhdptx sapb registers.
+      - description:
+          Register block for mhdptx DSC encoder registers.
 
   reg-names:
     minItems: 1
@@ -34,6 +36,7 @@ properties:
       - const: mhdptx
       - const: j721e-intg
       - const: mhdptx-sapb
+      - const: dsc
 
   clocks:
     maxItems: 1
@@ -100,18 +103,27 @@ allOf:
       properties:
         reg:
           minItems: 2
-          maxItems: 3
+          maxItems: 4
         reg-names:
           minItems: 2
-          maxItems: 3
+          maxItems: 4
+          items:
+            - const: mhdptx
+            - const: j721e-intg
+            - const: mhdptx-sapb
+            - const: dsc
     else:
       properties:
         reg:
           minItems: 1
-          maxItems: 2
+          maxItems: 3
         reg-names:
           minItems: 1
-          maxItems: 2
+          maxItems: 3
+          items:
+            - const: mhdptx
+            - const: mhdptx-sapb
+            - const: dsc
 
 required:
   - compatible
-- 
2.34.1