xref: /freebsd/sys/contrib/device-tree/Bindings/display/st,stm32-dsi.yaml (revision b1fd95c9e24791d44593e611406b41e57826a5b8) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/st,stm32-dsi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: STMicroelectronics STM32 DSI host controller
8
9maintainers:
10  - Philippe Cornu <philippe.cornu@foss.st.com>
11  - Yannick Fertre <yannick.fertre@foss.st.com>
12
13description:
14  The STMicroelectronics STM32 DSI controller uses the Synopsys DesignWare MIPI-DSI host controller.
15
16allOf:
17  - $ref: dsi-controller.yaml#
18
19properties:
20  compatible:
21    const: st,stm32-dsi
22
23  reg:
24    maxItems: 1
25
26  clocks:
27    items:
28      - description: Module Clock
29      - description: DSI bus clock
30      - description: Pixel clock
31    minItems: 2
32
33  clock-names:
34    items:
35      - const: pclk
36      - const: ref
37      - const: px_clk
38    minItems: 2
39
40  resets:
41    maxItems: 1
42
43  reset-names:
44    items:
45      - const: apb
46
47  phy-dsi-supply:
48    description:
49      Phandle of the regulator that provides the supply voltage.
50
51  ports:
52    $ref: /schemas/graph.yaml#/properties/ports
53
54    properties:
55      port@0:
56        $ref: /schemas/graph.yaml#/properties/port
57        description:
58          DSI input port node, connected to the ltdc rgb output port.
59
60      port@1:
61        $ref: /schemas/graph.yaml#/$defs/port-base
62        unevaluatedProperties: false
63        description: |
64          DSI output port node, connected to a panel or a bridge input port.
65        properties:
66          endpoint:
67            $ref: /schemas/media/video-interfaces.yaml#
68            unevaluatedProperties: false
69            properties:
70              data-lanes:
71                minItems: 1
72                items:
73                  - const: 1
74                  - const: 2
75
76required:
77  - compatible
78  - reg
79  - clocks
80  - clock-names
81  - ports
82
83unevaluatedProperties: false
84
85examples:
86  - |
87    #include <dt-bindings/interrupt-controller/arm-gic.h>
88    #include <dt-bindings/clock/stm32mp1-clks.h>
89    #include <dt-bindings/reset/stm32mp1-resets.h>
90    #include <dt-bindings/gpio/gpio.h>
91    dsi: dsi@5a000000 {
92        compatible = "st,stm32-dsi";
93        reg = <0x5a000000 0x800>;
94        clocks = <&rcc DSI_K>, <&clk_hse>, <&rcc DSI_PX>;
95        clock-names = "pclk", "ref", "px_clk";
96        resets = <&rcc DSI_R>;
97        reset-names = "apb";
98        phy-dsi-supply = <&reg18>;
99
100        #address-cells = <1>;
101        #size-cells = <0>;
102
103        ports {
104              #address-cells = <1>;
105              #size-cells = <0>;
106
107              port@0 {
108                    reg = <0>;
109                    dsi_in: endpoint {
110                        remote-endpoint = <&ltdc_ep1_out>;
111                    };
112              };
113
114              port@1 {
115                    reg = <1>;
116                    dsi_out: endpoint {
117                        remote-endpoint = <&panel_in>;
118                    };
119              };
120        };
121
122        panel@0 {
123              compatible = "orisetech,otm8009a";
124              reg = <0>;
125              reset-gpios = <&gpioe 4 GPIO_ACTIVE_LOW>;
126              power-supply = <&v3v3>;
127
128              port {
129                    panel_in: endpoint {
130                        remote-endpoint = <&dsi_out>;
131                    };
132              };
133        };
134    };
135
136...
137