The RZ/G2L LCD controller is composed of Frame Compression Processor (FCPVD), Video Signal Processor (VSPD), and Display Unit (DU). The DU module supports the following hardware features − Display Parallel Interface (DPI) and MIPI LINK Video Interface − Display timing master − Generates video timings − Selecting the polarity of output DCLK, HSYNC, VSYNC, and DE − Supports Progressive − Input data format (from VSPD): RGB888, RGB666 − Output data format: same as Input data format − Supporting Full HD (1920 pixels x 1080 lines) for MIPI-DSI Output − Supporting WXGA (1280 pixels x 800 lines) for Parallel Output This patch document DU module found on RZ/G2L LCDC. Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx> --- v3: New patch --- .../bindings/display/renesas,rzg2l-du.yaml | 159 ++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml new file mode 100644 index 000000000000..2ee2d713cef4 --- /dev/null +++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml @@ -0,0 +1,159 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/renesas,rzg2l-du.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/G2L Display Unit (DU) + +maintainers: + - Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> + - Biju Das <biju.das.jz@xxxxxxxxxxxxxx> + +description: | + These DT bindings describe the Display Unit embedded in the Renesas RZ/G2L + and RZ/V2L SoCs. + +properties: + compatible: + enum: + - renesas,du-r9a07g044c # for RZ/G2LC compatible DU + - renesas,du-r9a07g044l # for RZ/G2L compatible DU + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Main clock + - description: Register access clock + - description: Video clock + + clock-names: + items: + - const: aclk + - const: pclk + - const: vclk + + resets: + maxItems: 1 + + power-domains: + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + description: | + The connections to the DU output video ports are modeled using the OF + graph bindings specified in Documentation/devicetree/bindings/graph.txt. + The number of ports and their assignment are model-dependent. Each port + shall have a single endpoint. + + patternProperties: + "^port@[0-1]$": + $ref: /schemas/graph.yaml#/properties/port + unevaluatedProperties: false + + required: + - port@0 + + unevaluatedProperties: false + + renesas,vsps: + $ref: "/schemas/types.yaml#/definitions/phandle-array" + items: + items: + - description: phandle to VSP instance that serves the DU channel + - description: Channel index identifying the LIF instance in that VSP + description: + A list of phandle and channel index tuples to the VSPs that handle the + memory interfaces for the DU channels. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - resets + - power-domains + - ports + - renesas,vsps + +allOf: + - if: + properties: + compatible: + contains: + enum: + - renesas,du-r9a07g044c + then: + properties: + ports: + properties: + port@0: + description: DSI 0 + required: + - port@0 + + - if: + properties: + compatible: + contains: + enum: + - renesas,du-r9a07g044l + then: + properties: + ports: + properties: + port@0: + description: DPAD 0 + port@1: + description: DSI 0 + required: + - port@0 + - port@1 + +additionalProperties: false + +examples: + # RZ/G2L DU + - | + #include <dt-bindings/clock/r9a07g044-cpg.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + display@10890000 { + compatible = "renesas,du-r9a07g044l"; + reg = <0x10890000 0x10000>; + interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD R9A07G044_LCDC_CLK_A>, + <&cpg CPG_MOD R9A07G044_LCDC_CLK_P>, + <&cpg CPG_MOD R9A07G044_LCDC_CLK_D>; + clock-names = "aclk", "pclk", "vclk"; + resets = <&cpg R9A07G044_LCDC_RESET_N>; + power-domains = <&cpg>; + + renesas,vsps = <&vspd0 0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + du_out_rgb: endpoint { + }; + }; + port@1 { + reg = <1>; + du_out_dsi0: endpoint { + remote-endpoint = <&dsi0_in>; + }; + }; + }; + }; + +... -- 2.25.1
