1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/display/bri 4 $id: http://devicetree.org/schemas/display/bridge/ps8640.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: MIPI DSI to eDP Video Format Converter !! 7 title: MIPI DSI to eDP Video Format Converter Device Tree Bindings
8 8
9 maintainers: 9 maintainers:
10 - Nicolas Boichat <drinkcat@chromium.org> 10 - Nicolas Boichat <drinkcat@chromium.org>
>> 11 - Enric Balletbo i Serra <enric.balletbo@collabora.com>
11 12
12 description: | 13 description: |
13 The PS8640 is a low power MIPI-to-eDP video 14 The PS8640 is a low power MIPI-to-eDP video format converter supporting
14 mobile devices with embedded panel resolutio 15 mobile devices with embedded panel resolutions up to 2048 x 1536. The
15 device accepts a single channel of MIPI DSI 16 device accepts a single channel of MIPI DSI v1.1, with up to four lanes
16 plus clock, at a transmission rate up to 1.5 17 plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The
17 device outputs eDP v1.4, one or two lanes, a 18 device outputs eDP v1.4, one or two lanes, at a link rate of up to
18 3.24Gbit/sec per lane. 19 3.24Gbit/sec per lane.
19 20
20 properties: 21 properties:
21 compatible: 22 compatible:
22 const: parade,ps8640 23 const: parade,ps8640
23 24
24 reg: 25 reg:
25 maxItems: 1 26 maxItems: 1
26 description: Base I2C address of the devic 27 description: Base I2C address of the device.
27 28
28 powerdown-gpios: 29 powerdown-gpios:
29 maxItems: 1 30 maxItems: 1
30 description: GPIO connected to active low 31 description: GPIO connected to active low powerdown.
31 32
32 reset-gpios: 33 reset-gpios:
33 maxItems: 1 34 maxItems: 1
34 description: GPIO connected to active low 35 description: GPIO connected to active low reset.
35 36
36 vdd12-supply: 37 vdd12-supply:
>> 38 maxItems: 1
37 description: Regulator for 1.2V digital co 39 description: Regulator for 1.2V digital core power.
38 40
39 vdd33-supply: 41 vdd33-supply:
>> 42 maxItems: 1
40 description: Regulator for 3.3V digital co 43 description: Regulator for 3.3V digital core power.
41 44
42 aux-bus: <<
43 $ref: /schemas/display/dp-aux-bus.yaml# <<
44 <<
45 ports: 45 ports:
46 $ref: /schemas/graph.yaml#/properties/port !! 46 type: object
47 !! 47 description:
>> 48 A node containing DSI input & output port nodes with endpoint
>> 49 definitions as documented in
>> 50 Documentation/devicetree/bindings/media/video-interfaces.txt
>> 51 Documentation/devicetree/bindings/graph.txt
48 properties: 52 properties:
>> 53 '#address-cells':
>> 54 const: 1
>> 55
>> 56 '#size-cells':
>> 57 const: 0
>> 58
49 port@0: 59 port@0:
50 $ref: /schemas/graph.yaml#/properties/ !! 60 type: object
51 description: !! 61 description: |
52 Video port for DSI input 62 Video port for DSI input
53 63
54 port@1: 64 port@1:
55 $ref: /schemas/graph.yaml#/properties/ !! 65 type: object
56 description: !! 66 description: |
57 Video port for eDP output (panel or 67 Video port for eDP output (panel or connector).
58 68
59 required: 69 required:
60 - port@0 70 - port@0
61 71
>> 72 additionalProperties: false
>> 73
62 required: 74 required:
63 - compatible 75 - compatible
64 - reg 76 - reg
65 - powerdown-gpios 77 - powerdown-gpios
66 - reset-gpios 78 - reset-gpios
67 - vdd12-supply 79 - vdd12-supply
68 - vdd33-supply 80 - vdd33-supply
69 - ports 81 - ports
70 82
71 additionalProperties: false 83 additionalProperties: false
72 84
73 examples: 85 examples:
74 - | 86 - |
75 #include <dt-bindings/gpio/gpio.h> 87 #include <dt-bindings/gpio/gpio.h>
76 i2c { !! 88 i2c0 {
77 #address-cells = <1>; 89 #address-cells = <1>;
78 #size-cells = <0>; 90 #size-cells = <0>;
79 91
80 ps8640: edp-bridge@18 { 92 ps8640: edp-bridge@18 {
81 compatible = "parade,ps8640"; 93 compatible = "parade,ps8640";
82 reg = <0x18>; 94 reg = <0x18>;
83 powerdown-gpios = <&pio 116 GPIO_A 95 powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
84 reset-gpios = <&pio 115 GPIO_ACTIV 96 reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
85 vdd12-supply = <&ps8640_fixed_1v2> 97 vdd12-supply = <&ps8640_fixed_1v2>;
86 vdd33-supply = <&mt6397_vgp2_reg>; 98 vdd33-supply = <&mt6397_vgp2_reg>;
87 99
88 ports { 100 ports {
89 #address-cells = <1>; 101 #address-cells = <1>;
90 #size-cells = <0>; 102 #size-cells = <0>;
91 103
92 port@0 { 104 port@0 {
93 reg = <0>; 105 reg = <0>;
94 ps8640_in: endpoint { 106 ps8640_in: endpoint {
95 remote-endpoint = <&ds 107 remote-endpoint = <&dsi0_out>;
96 }; 108 };
97 }; 109 };
98 110
99 port@1 { 111 port@1 {
100 reg = <1>; 112 reg = <1>;
101 ps8640_out: endpoint { 113 ps8640_out: endpoint {
102 remote-endpoint = <&pa 114 remote-endpoint = <&panel_in>;
103 }; !! 115 };
104 }; <<
105 }; <<
106 <<
107 aux-bus { <<
108 panel { <<
109 compatible = "boe,nv133fhm <<
110 power-supply = <&pp3300_dx <<
111 backlight = <&backlight>; <<
112 <<
113 port { <<
114 panel_in: endpoint { <<
115 remote-endpoint = <<
116 }; <<
117 }; <<
118 }; 116 };
119 }; 117 };
120 }; 118 };
121 }; 119 };
>> 120
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