xref: /freebsd/sys/contrib/device-tree/Bindings/display/ti/ti,k2g-dss.yaml (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71) 
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    type: object
58    description:
59      Port as described in Documentation/devicetree/bindings/graph.txt.
60      The DSS DPI output port node
61
62  max-memory-bandwidth:
63    $ref: /schemas/types.yaml#/definitions/uint32
64    description:
65      Input memory (from main memory to dispc) bandwidth limit in
66      bytes per second
67
68required:
69  - compatible
70  - reg
71  - reg-names
72  - clocks
73  - clock-names
74  - interrupts
75  - port
76
77additionalProperties: false
78
79examples:
80  - |
81    #include <dt-bindings/interrupt-controller/arm-gic.h>
82    #include <dt-bindings/interrupt-controller/irq.h>
83
84    dss: dss@2540000 {
85            compatible = "ti,k2g-dss";
86            reg =   <0x02540000 0x400>,
87                    <0x02550000 0x1000>,
88                    <0x02557000 0x1000>,
89                    <0x0255a800 0x100>,
90                    <0x0255ac00 0x100>;
91            reg-names = "cfg", "common", "vid1", "ovr1", "vp1";
92            clocks =        <&k2g_clks 0x2 0>,
93                            <&k2g_clks 0x2 1>;
94            clock-names = "fck", "vp1";
95            interrupts = <GIC_SPI 247 IRQ_TYPE_EDGE_RISING>;
96
97            power-domains = <&k2g_pds 0x2>;
98
99            max-memory-bandwidth = <230000000>;
100
101            port {
102                    dpi_out: endpoint {
103                            remote-endpoint = <&sii9022_in>;
104                    };
105            };
106    };
107