st,stm32-dsi.yaml

  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...