[PATCH v5 09/20] dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC

From: Tommaso Merciai

Date: Fri Feb 13 2026 - 11:32:08 EST


The RZ/G3E Soc has 2 LCD controller (LCDC), contain a Frame Compression
Processor (FCPVD), a Video Signal Processor (VSPD), Video Signal
Processor (VSPD), and Display Unit (DU).

- LCDC0 supports DSI and LVDS (single or dual-channel) outputs.
- LCDC1 supports DSI, LVDS (single-channel), and RGB outputs.

Add new SoC-specific compatible string 'renesas,r9a09g047-du'.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
---
v4->v5:
- Dropped renesas,id property and updated bindings
accordingly.

v2->v3:
- No changes.

v2->v3:
- No changes.

v1->v2:
- Use single compatible string instead of multiple compatible strings
for the two DU instances, leveraging a 'renesas,id' property to
differentiate between DU0 and DU1.
- Updated commit message accordingly.

.../bindings/display/renesas,rzg2l-du.yaml | 22 +++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
index 2cc66dcef870..be50b153d651 100644
--- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
+++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
@@ -20,6 +20,7 @@ properties:
- enum:
- renesas,r9a07g043u-du # RZ/G2UL
- renesas,r9a07g044-du # RZ/G2{L,LC}
+ - renesas,r9a09g047-du # RZ/G3E
- renesas,r9a09g057-du # RZ/V2H(P)
- items:
- enum:
@@ -137,6 +138,27 @@ allOf:

required:
- port@0
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g047-du
+ then:
+ properties:
+ ports:
+ properties:
+ port@0:
+ description: DSI
+ port@1:
+ description: LVDS Channel 0
+ port@2:
+ description: LVDS Channel 1
+ port@3:
+ description: DPAD
+
+ required:
+ - port@0
+ - port@1

examples:
# RZ/G2L DU
--
2.43.0