xref: /openbmc/linux/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml (revision 71667902)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/samsung/samsung,exynos5433-decon.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung Exynos5433 SoC Display and Enhancement Controller (DECON)

maintainers:
  - Inki Dae <inki.dae@samsung.com>
  - Seung-Woo Kim <sw0312.kim@samsung.com>
  - Kyungmin Park <kyungmin.park@samsung.com>
  - Krzysztof Kozlowski <krzk@kernel.org>

description: |
  DECON (Display and Enhancement Controller) is the Display Controller for the
  Exynos5433 series of SoCs which transfers the image data from a video memory
  buffer to an external LCD interface.

properties:
  compatible:
    enum:
      - samsung,exynos5433-decon
      - samsung,exynos5433-decon-tv

  clocks:
    maxItems: 11

  clock-names:
    items:
      - const: pclk
      - const: aclk_decon
      - const: aclk_smmu_decon0x
      - const: aclk_xiu_decon0x
      - const: pclk_smmu_decon0x
      - const: aclk_smmu_decon1x
      - const: aclk_xiu_decon1x
      - const: pclk_smmu_decon1x
      - const: sclk_decon_vclk
      - const: sclk_decon_eclk
      - const: dsd

  interrupts:
    minItems: 3
    maxItems: 4
    description: |
      Interrupts depend on mode of work:
       - video mode: vsync
       - command mode: lcd_sys
       - command mode with software trigger: lcd_sys, te

  interrupt-names:
    minItems: 3
    items:
      - const: fifo
      - const: vsync
      - const: lcd_sys
      - const: te

  iommus:
    maxItems: 2

  iommu-names:
    items:
      - const: m0
      - const: m1

  ports:
    $ref: /schemas/graph.yaml#/properties/ports
    description:
      Contains a port which is connected to mic node.

  power-domains:
    maxItems: 1

  reg:
    maxItems: 1

  samsung,disp-sysreg:
    $ref: /schemas/types.yaml#/definitions/phandle
    description:
      Phandle to DISP system controller interface.

required:
  - compatible
  - clocks
  - clock-names
  - interrupts
  - interrupt-names
  - ports
  - reg

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/exynos5433.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    display-controller@13800000 {
        compatible = "samsung,exynos5433-decon";
        reg = <0x13800000 0x2104>;
        clocks = <&cmu_disp CLK_PCLK_DECON>,
                 <&cmu_disp CLK_ACLK_DECON>,
                 <&cmu_disp CLK_ACLK_SMMU_DECON0X>,
                 <&cmu_disp CLK_ACLK_XIU_DECON0X>,
                 <&cmu_disp CLK_PCLK_SMMU_DECON0X>,
                 <&cmu_disp CLK_ACLK_SMMU_DECON1X>,
                 <&cmu_disp CLK_ACLK_XIU_DECON1X>,
                 <&cmu_disp CLK_PCLK_SMMU_DECON1X>,
                 <&cmu_disp CLK_SCLK_DECON_VCLK>,
                 <&cmu_disp CLK_SCLK_DECON_ECLK>,
                 <&cmu_disp CLK_SCLK_DSD>;
        clock-names = "pclk",
                      "aclk_decon",
                      "aclk_smmu_decon0x",
                      "aclk_xiu_decon0x",
                      "pclk_smmu_decon0x",
                      "aclk_smmu_decon1x",
                      "aclk_xiu_decon1x",
                      "pclk_smmu_decon1x",
                      "sclk_decon_vclk",
                      "sclk_decon_eclk",
                      "dsd";
        power-domains = <&pd_disp>;
        interrupt-names = "fifo", "vsync", "lcd_sys";
        interrupts = <GIC_SPI 201 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 202 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>;
        samsung,disp-sysreg = <&syscon_disp>;
        iommus = <&sysmmu_decon0x>, <&sysmmu_decon1x>;
        iommu-names = "m0", "m1";

        ports {
            #address-cells = <1>;
            #size-cells = <0>;

            port@0 {
                reg = <0>;
                decon_to_mic: endpoint {
                    remote-endpoint = <&mic_to_decon>;
                };
            };
        };
    };