linux-kernel - [PATCH v4 4/7] dt-bindings: display: renesas,du: Add r8a779h0

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Message-Id: <20241213-rcar-gh-dsi-v4-4-f8e41425207b@ideasonboard.com>
Date: Fri, 13 Dec 2024 16:03:00 +0200
From: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Kieran Bingham <kieran.bingham+renesas@...asonboard.com>, 
 Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 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>, 
 Geert Uytterhoeven <geert+renesas@...der.be>, 
 Magnus Damm <magnus.damm@...il.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, LUU HOAI <hoai.luu.ub@...esas.com>, 
 Jagan Teki <jagan@...rulasolutions.com>, Sam Ravnborg <sam@...nborg.org>, 
 Biju Das <biju.das.jz@...renesas.com>
Cc: Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 dri-devel@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>, 
 linux-clk@...r.kernel.org, 
 Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
Subject: [PATCH v4 4/7] dt-bindings: display: renesas,du: Add r8a779h0

From: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>

Extend the Renesas DU display bindings to support the r8a779h0 V4M.

Note that we remove the requirement for two ports from the global part
of the bindings, as each conditional part defines the number of required
ports already. This came up with r8a779h0 as it's the first one that has
only one port.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
Tested-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 .../devicetree/bindings/display/renesas,du.yaml    | 53 ++++++++++++++++++++--
 1 file changed, 49 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml
index e5fbc4ffe29c..1b4cd8fac825 100644
--- a/Documentation/devicetree/bindings/display/renesas,du.yaml
+++ b/Documentation/devicetree/bindings/display/renesas,du.yaml
@@ -41,6 +41,7 @@ properties:
       - renesas,du-r8a77995 # for R-Car D3 compatible DU
       - renesas,du-r8a779a0 # for R-Car V3U compatible DU
       - renesas,du-r8a779g0 # for R-Car V4H compatible DU
+      - renesas,du-r8a779h0 # for R-Car V4M compatible DU
 
   reg:
     maxItems: 1
@@ -69,10 +70,6 @@ properties:
         $ref: /schemas/graph.yaml#/properties/port
         unevaluatedProperties: false
 
-    required:
-      - port@0
-      - port@1
-
     unevaluatedProperties: false
 
   renesas,cmms:
@@ -817,6 +814,54 @@ allOf:
         - reset-names
         - renesas,vsps
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,du-r8a779h0
+    then:
+      properties:
+        clocks:
+          items:
+            - description: Functional clock
+
+        clock-names:
+          items:
+            - const: du.0
+
+        interrupts:
+          maxItems: 1
+
+        resets:
+          maxItems: 1
+
+        reset-names:
+          items:
+            - const: du.0
+
+        ports:
+          properties:
+            port@0:
+              description: DSI 0
+            port@1: false
+            port@2: false
+            port@3: false
+
+          required:
+            - port@0
+
+        renesas,vsps:
+          minItems: 1
+          maxItems: 1
+
+      required:
+        - clock-names
+        - interrupts
+        - resets
+        - reset-names
+        - renesas,vsps
+
 additionalProperties: false
 
 examples:

-- 
2.43.0