dt-bindings: display: convert rockchip vop bindings to yaml

device-tree bindings for rockchip soc display controller (vop)

VOP (Visual Output Processor) is the Display Controller for the Rockchip

series of SoCs which transfers the image data from a video memory

buffer to an external LCD interface.

Required properties:

- compatible: value should be one of the following

		"rockchip,rk3036-vop";

		"rockchip,rk3126-vop";

		"rockchip,px30-vop-lit";

		"rockchip,px30-vop-big";

		"rockchip,rk3066-vop";

		"rockchip,rk3188-vop";

		"rockchip,rk3288-vop";

		"rockchip,rk3368-vop";

		"rockchip,rk3366-vop";

		"rockchip,rk3399-vop-big";

		"rockchip,rk3399-vop-lit";

		"rockchip,rk3228-vop";

		"rockchip,rk3328-vop";

- reg: Must contain one entry corresponding to the base address and length

	of the register space. Can optionally contain a second entry

	corresponding to the CRTC gamma LUT address.

- interrupts: should contain a list of all VOP IP block interrupts in the

		 order: VSYNC, LCD_SYSTEM. The interrupt specifier

		 format depends on the interrupt controller used.

- clocks: must include clock specifiers corresponding to entries in the

		clock-names property.

- clock-names: Must contain

		aclk_vop: for ddr buffer transfer.

		hclk_vop: for ahb bus to R/W the phy regs.

		dclk_vop: pixel clock.

- resets: Must contain an entry for each entry in reset-names.

  See ../reset/reset.txt for details.

- reset-names: Must include the following entries:

  - axi

  - ahb

  - dclk

- iommus: required a iommu node

- port: A port node with endpoint definitions as defined in

  Documentation/devicetree/bindings/media/video-interfaces.txt.

Example:

SoC specific DT entry:

	vopb: vopb@ff930000 {

		compatible = "rockchip,rk3288-vop";

		reg = <0x0 0xff930000 0x0 0x19c>, <0x0 0xff931000 0x0 0x1000>;

		interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>;

		clock-names = "aclk_vop", "dclk_vop", "hclk_vop";

		resets = <&cru SRST_LCDC1_AXI>, <&cru SRST_LCDC1_AHB>, <&cru SRST_LCDC1_DCLK>;

		reset-names = "axi", "ahb", "dclk";

		iommus = <&vopb_mmu>;

		vopb_out: port {

			#address-cells = <1>;

			#size-cells = <0>;

			vopb_out_edp: endpoint@0 {

				reg = <0>;

				remote-endpoint=<&edp_in_vopb>;

			};

			vopb_out_hdmi: endpoint@1 {

				reg = <1>;

				remote-endpoint=<&hdmi_in_vopb>;

			};

		};

	};

# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/display/rockchip/rockchip-vop.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Rockchip SoC display controller (VOP)

description:

  VOP (Video Output Processor) is the display controller for the Rockchip

  series of SoCs which transfers the image data from a video memory

  buffer to an external LCD interface.

maintainers:

  - Sandy Huang <hjc@rock-chips.com>

  - Heiko Stuebner <heiko@sntech.de>

properties:

  compatible:

    enum:

      - rockchip,px30-vop-big

      - rockchip,px30-vop-lit

      - rockchip,rk3036-vop

      - rockchip,rk3066-vop

      - rockchip,rk3126-vop

      - rockchip,rk3188-vop

      - rockchip,rk3228-vop

      - rockchip,rk3288-vop

      - rockchip,rk3328-vop

      - rockchip,rk3366-vop

      - rockchip,rk3368-vop

      - rockchip,rk3399-vop-big

      - rockchip,rk3399-vop-lit

  reg:

    minItems: 1

    items:

      - description:

          Must contain one entry corresponding to the base address and length

          of the register space.

      - description:

          Can optionally contain a second entry corresponding to

          the CRTC gamma LUT address.

  interrupts:

    maxItems: 1

    description:

      The VOP interrupt is shared by several interrupt sources, such as

      frame start (VSYNC), line flag and other status interrupts.

  clocks:

    items:

      - description: Clock for ddr buffer transfer.

      - description: Pixel clock.

      - description: Clock for the ahb bus to R/W the phy regs.

  clock-names:

    items:

      - const: aclk_vop

      - const: dclk_vop

      - const: hclk_vop

  resets:

    maxItems: 3

  reset-names:

    items:

      - const: axi

      - const: ahb

      - const: dclk

  port:

    type: object

    description:

      A port node with endpoint definitions as defined in

      Documentation/devicetree/bindings/media/video-interfaces.txt.

  iommus:

    maxItems: 1

required:

  - compatible

  - reg

  - interrupts

  - clocks

  - clock-names

  - resets

  - reset-names

  - port

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/rk3288-cru.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    vopb: vopb@ff930000 {

      compatible = "rockchip,rk3288-vop";

      reg = <0x0 0xff930000 0x0 0x19c>,

            <0x0 0xff931000 0x0 0x1000>;

      interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;

      clocks = <&cru ACLK_VOP0>,

               <&cru DCLK_VOP0>,

               <&cru HCLK_VOP0>;

      clock-names = "aclk_vop", "dclk_vop", "hclk_vop";

      resets = <&cru SRST_LCDC1_AXI>,

               <&cru SRST_LCDC1_AHB>,

               <&cru SRST_LCDC1_DCLK>;

      reset-names = "axi", "ahb", "dclk";

      iommus = <&vopb_mmu>;

      vopb_out: port {

        #address-cells = <1>;

        #size-cells = <0>;

        vopb_out_edp: endpoint@0 {

          reg = <0>;

          remote-endpoint=<&edp_in_vopb>;

        };

        vopb_out_hdmi: endpoint@1 {

          reg = <1>;

          remote-endpoint=<&hdmi_in_vopb>;

        };

      };

    };