xref: /openbmc/linux/Documentation/devicetree/bindings/display/ti/ti,j721e-dss.yaml (revision 1ac731c529cd4d6adbce134754b51ff7d822b145)

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/ti/ti,j721e-dss.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments J721E Display Subsystem

maintainers:
  - Jyri Sarha <jsarha@ti.com>
  - Tomi Valkeinen <tomi.valkeinen@ti.com>

description: |
  The J721E TI Keystone Display SubSystem with four output ports and
  four video planes. There is two full video planes and two "lite
  planes" without scaling support. The video ports can be connected to
  the SoC's DPI pins or to integrated display bridges on the SoC.

properties:
  compatible:
    const: ti,j721e-dss

  reg:
    items:
      - description: common_m DSS Master common
      - description: common_s0 DSS Shared common 0
      - description: common_s1 DSS Shared common 1
      - description: common_s2 DSS Shared common 2
      - description: VIDL1 light video plane 1
      - description: VIDL2 light video plane 2
      - description: VID1 video plane 1
      - description: VID1 video plane 2
      - description: OVR1 overlay manager for vp1
      - description: OVR2 overlay manager for vp2
      - description: OVR3 overlay manager for vp3
      - description: OVR4 overlay manager for vp4
      - description: VP1 video port 1
      - description: VP2 video port 2
      - description: VP3 video port 3
      - description: VP4 video port 4
      - description: WB Write Back

  reg-names:
    items:
      - const: common_m
      - const: common_s0
      - const: common_s1
      - const: common_s2
      - const: vidl1
      - const: vidl2
      - const: vid1
      - const: vid2
      - const: ovr1
      - const: ovr2
      - const: ovr3
      - const: ovr4
      - const: vp1
      - const: vp2
      - const: vp3
      - const: vp4
      - const: wb

  clocks:
    items:
      - description: fck DSS functional clock
      - description: vp1 Video Port 1 pixel clock
      - description: vp2 Video Port 2 pixel clock
      - description: vp3 Video Port 3 pixel clock
      - description: vp4 Video Port 4 pixel clock

  clock-names:
    items:
      - const: fck
      - const: vp1
      - const: vp2
      - const: vp3
      - const: vp4

  assigned-clocks:
    minItems: 1
    maxItems: 5

  assigned-clock-parents:
    minItems: 1
    maxItems: 5

  interrupts:
    items:
      - description: common_m DSS Master common
      - description: common_s0 DSS Shared common 0
      - description: common_s1 DSS Shared common 1
      - description: common_s2 DSS Shared common 2

  interrupt-names:
    items:
      - const: common_m
      - const: common_s0
      - const: common_s1
      - const: common_s2

  power-domains:
    maxItems: 1
    description: phandle to the associated power domain

  dma-coherent:
    type: boolean

  ports:
    $ref: /schemas/graph.yaml#/properties/ports

    properties:
      port@0:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          The output port node form video port 1

      port@1:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          The output port node from video port 2

      port@2:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          The output port node from video port 3

      port@3:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          The output port node from video port 4

  max-memory-bandwidth:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
      Input memory (from main memory to dispc) bandwidth limit in
      bytes per second

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

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/soc/ti,sci_pm_domain.h>

    dss: dss@4a00000 {
            compatible = "ti,j721e-dss";
            reg =   <0x04a00000 0x10000>, /* common_m */
                    <0x04a10000 0x10000>, /* common_s0*/
                    <0x04b00000 0x10000>, /* common_s1*/
                    <0x04b10000 0x10000>, /* common_s2*/
                    <0x04a20000 0x10000>, /* vidl1 */
                    <0x04a30000 0x10000>, /* vidl2 */
                    <0x04a50000 0x10000>, /* vid1 */
                    <0x04a60000 0x10000>, /* vid2 */
                    <0x04a70000 0x10000>, /* ovr1 */
                    <0x04a90000 0x10000>, /* ovr2 */
                    <0x04ab0000 0x10000>, /* ovr3 */
                    <0x04ad0000 0x10000>, /* ovr4 */
                    <0x04a80000 0x10000>, /* vp1 */
                    <0x04aa0000 0x10000>, /* vp2 */
                    <0x04ac0000 0x10000>, /* vp3 */
                    <0x04ae0000 0x10000>, /* vp4 */
                    <0x04af0000 0x10000>; /* wb */
            reg-names = "common_m", "common_s0",
                    "common_s1", "common_s2",
                    "vidl1", "vidl2","vid1","vid2",
                    "ovr1", "ovr2", "ovr3", "ovr4",
                    "vp1", "vp2", "vp3", "vp4",
                    "wb";
            clocks =        <&k3_clks 152 0>,
                            <&k3_clks 152 1>,
                            <&k3_clks 152 4>,
                            <&k3_clks 152 9>,
                            <&k3_clks 152 13>;
            clock-names = "fck", "vp1", "vp2", "vp3", "vp4";
            power-domains = <&k3_pds 152 TI_SCI_PD_EXCLUSIVE>;
            interrupts =    <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>,
                            <GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>,
                            <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>,
                            <GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>;
            interrupt-names =       "common_m",
                                    "common_s0",
                                    "common_s1",
                                    "common_s2";
            ports {
                    #address-cells = <1>;
                    #size-cells = <0>;
                    port@0 {
                            reg = <0>;

                            dpi_out_0: endpoint {
                                    remote-endpoint = <&dp_bridge_input>;
                            };
                    };
            };
    };