[PATCH 1/7] dt-bindings: display: renesas,du: Document Renesas R-Car R8A779MD M3Le

Marek Vasut
2026-04-19T19:37:44Z

Extend the Renesas DU display bindings to support the Renesas R-Car
R8A779MD M3Le SoC. This SoC is similar to R-Car R8A77965 M3-N SoC,
except the HDMI port@1 is not present.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Cc: devicetree@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-clk@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
.../bindings/display/renesas,du.yaml | 70 +++++++++++++++++++
1 file changed, 70 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml
index c27dfea7fc622..3c3667ff4a27f 100644
--- a/Documentation/devicetree/bindings/display/renesas,du.yaml
+++ b/Documentation/devicetree/bindings/display/renesas,du.yaml
@@ -42,6 +42,7 @@ properties:
- 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
+ - renesas,du-r8a779md # for R-Car M3Le compatible DU

reg:
maxItems: 1
@@ -890,6 +891,75 @@ allOf:
- reset-names
- renesas,vsps

+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,du-r8a779md
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ items:
+ - description: Functional clock for DU0
+ - description: Functional clock for DU1
+ - description: Functional clock for DU3
+ - description: DU_DOTCLKIN0 input clock
+ - description: DU_DOTCLKIN1 input clock
+ - description: DU_DOTCLKIN3 input clock
+
+ clock-names:
+ minItems: 3
+ items:
+ - const: du.0
+ - const: du.1
+ - const: du.3
+ - pattern: '^dclkin\.[013]$'
+ - pattern: '^dclkin\.[013]$'
+ - pattern: '^dclkin\.[013]$'
+
+ interrupts:
+ minItems: 3
+ maxItems: 3
+
+ resets:
+ minItems: 2
+ maxItems: 2
+
+ reset-names:
+ items:
+ - const: du.0
+ - const: du.3
+
+ ports:
+ properties:
+ port@0:
+ description: DPAD 0
+ port@1: false
+ port@2:
+ description: LVDS 0
+ port@3: false
+
+ required:
+ - port@0
+ - port@2
+
+ renesas,cmms:
+ minItems: 3
+ maxItems: 3
+
+ renesas,vsps:
+ minItems: 3
+ maxItems: 3
+
+ required:
+ - clock-names
+ - interrupts
+ - resets
+ - reset-names
+ - renesas,vsps
+
additionalProperties: false

examples:
--
2.53.0