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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/renesas,lvds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car LVDS Encoder
+
+maintainers:
+ - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+
+description: |
+ These DT bindings describe the LVDS encoder embedded in the Renesas R-Car
+ Gen2, R-Car Gen3, RZ/G1 and RZ/G2 SoCs.
+
+properties:
+ compatible:
+ enum:
+ - renesas,r8a7742-lvds # for RZ/G1H compatible LVDS encoders
+ - renesas,r8a7743-lvds # for RZ/G1M compatible LVDS encoders
+ - renesas,r8a7744-lvds # for RZ/G1N compatible LVDS encoders
+ - renesas,r8a774a1-lvds # for RZ/G2M compatible LVDS encoders
+ - renesas,r8a774b1-lvds # for RZ/G2N compatible LVDS encoders
+ - renesas,r8a774c0-lvds # for RZ/G2E compatible LVDS encoders
+ - renesas,r8a774e1-lvds # for RZ/G2H compatible LVDS encoders
+ - renesas,r8a7790-lvds # for R-Car H2 compatible LVDS encoders
+ - renesas,r8a7791-lvds # for R-Car M2-W compatible LVDS encoders
+ - renesas,r8a7793-lvds # for R-Car M2-N compatible LVDS encoders
+ - renesas,r8a7795-lvds # for R-Car H3 compatible LVDS encoders
+ - renesas,r8a7796-lvds # for R-Car M3-W compatible LVDS encoders
+ - renesas,r8a77965-lvds # for R-Car M3-N compatible LVDS encoders
+ - renesas,r8a77970-lvds # for R-Car V3M compatible LVDS encoders
+ - renesas,r8a77980-lvds # for R-Car V3H compatible LVDS encoders
+ - renesas,r8a77990-lvds # for R-Car E3 compatible LVDS encoders
+ - renesas,r8a77995-lvds # for R-Car D3 compatible LVDS encoders
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+
+ resets:
+ maxItems: 1
+
+ ports:
+ type: object
+ description: |
+ This device has two video ports. Their connections are modelled using the
+ OF graph bindings specified in Documentation/devicetree/bindings/graph.txt.
+ Each port shall have a single endpoint.
+
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ port@0:
+ type: object
+ description: Parallel RGB input port
+
+ port@1:
+ type: object
+ description: LVDS output port
+
+ required:
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+ power-domains:
+ maxItems: 1
+
+ renesas,companion:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle to the companion LVDS encoder. This property is mandatory
+ for the first LVDS encoder on D3 and E3 SoCs, and shall point to
+ the second encoder to be used as a companion in dual-link mode. It
+ shall not be set for any other LVDS encoder.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - power-domains
+ - resets
+ - ports
+
+if:
+ properties:
+ compatible:
+ enum:
+ - renesas,r8a774c0-lvds
+ - renesas,r8a77990-lvds
+ - renesas,r8a77995-lvds
+then:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 4
+ items:
+ - description: Functional clock
+ - description: EXTAL input clock
+ - description: DU_DOTCLKIN0 input clock
+ - description: DU_DOTCLKIN1 input clock
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+ items:
+ - const: fck
+ # The LVDS encoder can use the EXTAL or DU_DOTCLKINx clocks.
+ # These clocks are optional.
+ - enum:
+ - extal
+ - dclkin.0
+ - dclkin.1
+ - enum:
+ - extal
+ - dclkin.0
+ - dclkin.1
+ - enum:
+ - extal
+ - dclkin.0
+ - dclkin.1
+
+ required:
+ - clock-names
+
+else:
+ properties:
+ clocks:
+ maxItems: 1
+ items:
+ - description: Functional clock
+
+ clock-names:
+ maxItems: 1
+ items:
+ - const: fck
+
+ renesas,companion: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/renesas-cpg-mssr.h>
+ #include <dt-bindings/power/r8a7795-sysc.h>
+
+ lvds@feb90000 {
+ compatible = "renesas,r8a7795-lvds";
+ reg = <0xfeb90000 0x14>;
+ clocks = <&cpg CPG_MOD 727>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 727>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ lvds_in: endpoint {
+ remote-endpoint = <&du_out_lvds0>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ lvds_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
+
+ - |
+ #include <dt-bindings/clock/renesas-cpg-mssr.h>
+ #include <dt-bindings/power/r8a77990-sysc.h>
+
+ lvds0: lvds@feb90000 {
+ compatible = "renesas,r8a77990-lvds";
+ reg = <0xfeb90000 0x20>;
+ clocks = <&cpg CPG_MOD 727>,
+ <&x13_clk>,
+ <&extal_clk>;
+ clock-names = "fck", "dclkin.0", "extal";
+ power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
+ resets = <&cpg 727>;
+
+ renesas,companion = <&lvds1>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ lvds0_in: endpoint {
+ remote-endpoint = <&du_out_lvds0>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ lvds0_out: endpoint {
+ remote-endpoint = <&panel_in1>;
+ };
+ };
+ };
+ };
+
+ lvds1: lvds@feb90100 {
+ compatible = "renesas,r8a77990-lvds";
+ reg = <0xfeb90100 0x20>;
+ clocks = <&cpg CPG_MOD 727>,
+ <&x13_clk>,
+ <&extal_clk>;
+ clock-names = "fck", "dclkin.0", "extal";
+ power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
+ resets = <&cpg 726>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ lvds1_in: endpoint {
+ remote-endpoint = <&du_out_lvds1>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ lvds1_out: endpoint {
+ remote-endpoint = <&panel_in2>;
+ };
+ };
+ };
+ };
+
+...