xref: /freebsd/sys/contrib/device-tree/Bindings/display/bridge/ps8640.yaml (revision 3a3af6b2a160bea72509a9d5ef84e25906b0478a) 
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
12description: |
13  The PS8640 is a low power MIPI-to-eDP video format converter supporting
14  mobile devices with embedded panel resolutions up to 2048 x 1536. The
15  device accepts a single channel of MIPI DSI v1.1, with up to four lanes
16  plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The
17  device outputs eDP v1.4, one or two lanes, at a link rate of up to
18  3.24Gbit/sec per lane.
19
20properties:
21  compatible:
22    const: parade,ps8640
23
24  reg:
25    maxItems: 1
26    description: Base I2C address of the device.
27
28  powerdown-gpios:
29    maxItems: 1
30    description: GPIO connected to active low powerdown.
31
32  reset-gpios:
33    maxItems: 1
34    description: GPIO connected to active low reset.
35
36  vdd12-supply:
37    description: Regulator for 1.2V digital core power.
38
39  vdd33-supply:
40    description: Regulator for 3.3V digital core power.
41
42  aux-bus:
43    $ref: /schemas/display/dp-aux-bus.yaml#
44
45  ports:
46    $ref: /schemas/graph.yaml#/properties/ports
47
48    properties:
49      port@0:
50        $ref: /schemas/graph.yaml#/properties/port
51        description:
52          Video port for DSI input
53
54      port@1:
55        $ref: /schemas/graph.yaml#/properties/port
56        description:
57          Video port for eDP output (panel or connector).
58
59    required:
60      - port@0
61
62required:
63  - compatible
64  - reg
65  - powerdown-gpios
66  - reset-gpios
67  - vdd12-supply
68  - vdd33-supply
69  - ports
70
71additionalProperties: false
72
73examples:
74  - |
75    #include <dt-bindings/gpio/gpio.h>
76    i2c0 {
77        #address-cells = <1>;
78        #size-cells = <0>;
79
80        ps8640: edp-bridge@18 {
81            compatible = "parade,ps8640";
82            reg = <0x18>;
83            powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
84            reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
85            vdd12-supply = <&ps8640_fixed_1v2>;
86            vdd33-supply = <&mt6397_vgp2_reg>;
87
88            ports {
89                #address-cells = <1>;
90                #size-cells = <0>;
91
92                port@0 {
93                    reg = <0>;
94                    ps8640_in: endpoint {
95                        remote-endpoint = <&dsi0_out>;
96                    };
97                };
98
99                port@1 {
100                    reg = <1>;
101                    ps8640_out: endpoint {
102                        remote-endpoint = <&panel_in>;
103                    };
104                };
105            };
106
107            aux-bus {
108                panel {
109                    compatible = "boe,nv133fhm-n62";
110                    power-supply = <&pp3300_dx_edp>;
111                    backlight = <&backlight>;
112
113                    port {
114                        panel_in: endpoint {
115                            remote-endpoint = <&ps8640_out>;
116                        };
117                    };
118                };
119            };
120        };
121    };
122
123