tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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