xref: /freebsd/sys/contrib/device-tree/Bindings/display/bridge/ps8640.yaml (revision c1d255d3ffdbe447de3ab875bf4e7d7accc5bfc5) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/bridge/ps8640.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: MIPI DSI to eDP Video Format Converter Device Tree Bindings
8
9maintainers:
10  - Nicolas Boichat <drinkcat@chromium.org>
11  - Enric Balletbo i Serra <enric.balletbo@collabora.com>
12
13description: |
14  The PS8640 is a low power MIPI-to-eDP video format converter supporting
15  mobile devices with embedded panel resolutions up to 2048 x 1536. The
16  device accepts a single channel of MIPI DSI v1.1, with up to four lanes
17  plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The
18  device outputs eDP v1.4, one or two lanes, at a link rate of up to
19  3.24Gbit/sec per lane.
20
21properties:
22  compatible:
23    const: parade,ps8640
24
25  reg:
26    maxItems: 1
27    description: Base I2C address of the device.
28
29  powerdown-gpios:
30    maxItems: 1
31    description: GPIO connected to active low powerdown.
32
33  reset-gpios:
34    maxItems: 1
35    description: GPIO connected to active low reset.
36
37  vdd12-supply:
38    description: Regulator for 1.2V digital core power.
39
40  vdd33-supply:
41    description: Regulator for 3.3V digital core power.
42
43  ports:
44    $ref: /schemas/graph.yaml#/properties/ports
45
46    properties:
47      port@0:
48        $ref: /schemas/graph.yaml#/properties/port
49        description:
50          Video port for DSI input
51
52      port@1:
53        $ref: /schemas/graph.yaml#/properties/port
54        description:
55          Video port for eDP output (panel or connector).
56
57    required:
58      - port@0
59
60required:
61  - compatible
62  - reg
63  - powerdown-gpios
64  - reset-gpios
65  - vdd12-supply
66  - vdd33-supply
67  - ports
68
69additionalProperties: false
70
71examples:
72  - |
73    #include <dt-bindings/gpio/gpio.h>
74    i2c0 {
75        #address-cells = <1>;
76        #size-cells = <0>;
77
78        ps8640: edp-bridge@18 {
79            compatible = "parade,ps8640";
80            reg = <0x18>;
81            powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
82            reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
83            vdd12-supply = <&ps8640_fixed_1v2>;
84            vdd33-supply = <&mt6397_vgp2_reg>;
85
86            ports {
87                #address-cells = <1>;
88                #size-cells = <0>;
89
90                port@0 {
91                    reg = <0>;
92                    ps8640_in: endpoint {
93                        remote-endpoint = <&dsi0_out>;
94                    };
95                };
96
97                port@1 {
98                    reg = <1>;
99                    ps8640_out: endpoint {
100                        remote-endpoint = <&panel_in>;
101                   };
102                };
103            };
104        };
105    };
106
107