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  aux-bus:
44    $ref: /schemas/display/dp-aux-bus.yaml#
45
46  ports:
47    $ref: /schemas/graph.yaml#/properties/ports
48
49    properties:
50      port@0:
51        $ref: /schemas/graph.yaml#/properties/port
52        description:
53          Video port for DSI input
54
55      port@1:
56        $ref: /schemas/graph.yaml#/properties/port
57        description:
58          Video port for eDP output (panel or connector).
59
60    required:
61      - port@0
62
63required:
64  - compatible
65  - reg
66  - powerdown-gpios
67  - reset-gpios
68  - vdd12-supply
69  - vdd33-supply
70  - ports
71
72additionalProperties: false
73
74examples:
75  - |
76    #include <dt-bindings/gpio/gpio.h>
77    i2c0 {
78        #address-cells = <1>;
79        #size-cells = <0>;
80
81        ps8640: edp-bridge@18 {
82            compatible = "parade,ps8640";
83            reg = <0x18>;
84            powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
85            reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
86            vdd12-supply = <&ps8640_fixed_1v2>;
87            vdd33-supply = <&mt6397_vgp2_reg>;
88
89            ports {
90                #address-cells = <1>;
91                #size-cells = <0>;
92
93                port@0 {
94                    reg = <0>;
95                    ps8640_in: endpoint {
96                        remote-endpoint = <&dsi0_out>;
97                    };
98                };
99
100                port@1 {
101                    reg = <1>;
102                    ps8640_out: endpoint {
103                        remote-endpoint = <&panel_in>;
104                    };
105                };
106            };
107
108            aux-bus {
109                panel {
110                    compatible = "boe,nv133fhm-n62";
111                    power-supply = <&pp3300_dx_edp>;
112                    backlight = <&backlight>;
113
114                    port {
115                        panel_in: endpoint {
116                            remote-endpoint = <&ps8640_out>;
117                        };
118                    };
119                };
120            };
121        };
122    };
123
124