[PATCH v2 1/3] dt-bindings: display: nuvoton: add MA35D1 DCU binding
From: Joey Lu <hidden>
Date: 2026-01-29 04:05:41
Also in:
dri-devel, linux-devicetree, lkml
Subsystem:
arm/nuvoton ma35 architecture, drm drivers, drm drivers and misc gpu patches, open firmware and flattened device tree bindings, the rest · Maintainers:
Jacky Huang, Shan-Chun Hung, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add Device Tree binding documentation for the Display Control Unit (DCU) found in Nuvoton MA35D1 SoCs. The DCU is a DPI-based display controller supporting RGB output with optional external bridges or panels. Signed-off-by: Joey Lu <redacted> --- .../bindings/display/nuvoton,ma35d1-dcu.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/nuvoton,ma35d1-dcu.yaml
diff --git a/Documentation/devicetree/bindings/display/nuvoton,ma35d1-dcu.yaml b/Documentation/devicetree/bindings/display/nuvoton,ma35d1-dcu.yaml
new file mode 100644
index 000000000000..adfc20117eb7
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/nuvoton,ma35d1-dcu.yaml@@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/nuvoton,ma35d1-dcu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Nuvoton MA35D1 Display Controller Unit (DCU) + +maintainers: + - Joey Lu <a0987203069@gmail.com> + +description: + The Nuvoton MA35D1 Display Controller Unit (DCU) supports multiple + layers of composition, blending, and output to parallel RGB (DPI) + interfaces. + +properties: + compatible: + const: nuvoton,ma35d1-dcu + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: DCU Gate clock for register access + - description: DCU Pixel clock for display timing + + clock-names: + items: + - const: dcu_gate + - const: dcup_div + + resets: + maxItems: 1 + + port: + $ref: /schemas/graph.yaml#/properties/port + description: Video output port + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/nuvoton,ma35d1-clk.h> + #include <dt-bindings/reset/nuvoton,ma35d1-reset.h> + + display@40260000 { + compatible = "nuvoton,ma35d1-dcu"; + reg = <0x40260000 0x2000>; + interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk DCU_GATE>, <&clk DCUP_DIV>; + clock-names = "dcu_gate", "dcup_div"; + resets = <&sys MA35D1_RESET_DISP>; + + port { + dpi_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + };
--
2.43.0