1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
  2# Copyright 2019 Texas Instruments Incorporated
  3%YAML 1.2
  4---
  5$id: http://devicetree.org/schemas/display/ti/ti,k2g-dss.yaml#
  6$schema: http://devicetree.org/meta-schemas/core.yaml#
  7
  8title: Texas Instruments K2G Display Subsystem
  9
 10maintainers:
 11  - Jyri Sarha <jsarha@ti.com>
 12  - Tomi Valkeinen <tomi.valkeinen@ti.com>
 13
 14description: |
 15  The K2G DSS is an ultra-light version of TI Keystone Display
 16  SubSystem. It has only one output port and video plane. The
 17  output is DPI.
 18
 19properties:
 20  compatible:
 21    const: ti,k2g-dss
 22
 23  reg:
 24    items:
 25      - description: cfg DSS top level
 26      - description: common DISPC common
 27      - description: VID1 video plane 1
 28      - description: OVR1 overlay manager for vp1
 29      - description: VP1 video port 1
 30
 31  reg-names:
 32    items:
 33      - const: cfg
 34      - const: common
 35      - const: vid1
 36      - const: ovr1
 37      - const: vp1
 38
 39  clocks:
 40    items:
 41      - description: fck DSS functional clock
 42      - description: vp1 Video Port 1 pixel clock
 43
 44  clock-names:
 45    items:
 46      - const: fck
 47      - const: vp1
 48
 49  interrupts:
 50    maxItems: 1
 51
 52  power-domains:
 53    maxItems: 1
 54    description: phandle to the associated power domain
 55
 56  port:
 57    $ref: /schemas/graph.yaml#/properties/port
 58    description:
 59      The DSS DPI output port node
 60
 61  max-memory-bandwidth:
 62    $ref: /schemas/types.yaml#/definitions/uint32
 63    description:
 64      Input memory (from main memory to dispc) bandwidth limit in
 65      bytes per second
 66
 67required:
 68  - compatible
 69  - reg
 70  - reg-names
 71  - clocks
 72  - clock-names
 73  - interrupts
 74  - port
 75
 76additionalProperties: false
 77
 78examples:
 79  - |
 80    #include <dt-bindings/interrupt-controller/arm-gic.h>
 81    #include <dt-bindings/interrupt-controller/irq.h>
 82
 83    dss: dss@2540000 {
 84            compatible = "ti,k2g-dss";
 85            reg =   <0x02540000 0x400>,
 86                    <0x02550000 0x1000>,
 87                    <0x02557000 0x1000>,
 88                    <0x0255a800 0x100>,
 89                    <0x0255ac00 0x100>;
 90            reg-names = "cfg", "common", "vid1", "ovr1", "vp1";
 91            clocks =        <&k2g_clks 0x2 0>,
 92                            <&k2g_clks 0x2 1>;
 93            clock-names = "fck", "vp1";
 94            interrupts = <GIC_SPI 247 IRQ_TYPE_EDGE_RISING>;
 95
 96            power-domains = <&k2g_pds 0x2>;
 97
 98            max-memory-bandwidth = <230000000>;
 99
100            port {
101                    dpi_out: endpoint {
102                            remote-endpoint = <&sii9022_in>;
103                    };
104            };
105    };