xref: /linux/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml (revision 6beeaf48db6c548fcfc2ad32739d33af2fef3a5b) 
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@st.com>
11  - Yannick Fertre <yannick.fertre@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#/properties/port
62        description:
63          DSI output port node, connected to a panel or a bridge input port"
64
65required:
66  - "#address-cells"
67  - "#size-cells"
68  - compatible
69  - reg
70  - clocks
71  - clock-names
72  - ports
73
74unevaluatedProperties: false
75
76examples:
77  - |
78    #include <dt-bindings/interrupt-controller/arm-gic.h>
79    #include <dt-bindings/clock/stm32mp1-clks.h>
80    #include <dt-bindings/reset/stm32mp1-resets.h>
81    #include <dt-bindings/gpio/gpio.h>
82    dsi: dsi@5a000000 {
83        compatible = "st,stm32-dsi";
84        reg = <0x5a000000 0x800>;
85        clocks = <&rcc DSI_K>, <&clk_hse>, <&rcc DSI_PX>;
86        clock-names = "pclk", "ref", "px_clk";
87        resets = <&rcc DSI_R>;
88        reset-names = "apb";
89        phy-dsi-supply = <&reg18>;
90
91        #address-cells = <1>;
92        #size-cells = <0>;
93
94        ports {
95              #address-cells = <1>;
96              #size-cells = <0>;
97
98              port@0 {
99                    reg = <0>;
100                    dsi_in: endpoint {
101                        remote-endpoint = <&ltdc_ep1_out>;
102                    };
103              };
104
105              port@1 {
106                    reg = <1>;
107                    dsi_out: endpoint {
108                        remote-endpoint = <&panel_in>;
109                    };
110              };
111        };
112
113        panel-dsi@0 {
114              compatible = "orisetech,otm8009a";
115              reg = <0>;
116              reset-gpios = <&gpioe 4 GPIO_ACTIVE_LOW>;
117              power-supply = <&v3v3>;
118
119              port {
120                    panel_in: endpoint {
121                        remote-endpoint = <&dsi_out>;
122                    };
123              };
124        };
125    };
126
127...
128
129