| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/media/video-mux.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Video Multiplexer |
| 8 | |
| 9 | maintainers: |
| 10 | - Sakari Ailus <sakari.ailus@linux.intel.com> |
| 11 | - Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
| 12 | |
| 13 | description: |
| 14 | Video multiplexers allow to select between multiple input ports. Video |
| 15 | received on the active input port is passed through to the output port. Muxes |
| 16 | described by this binding are controlled by a multiplexer controller. |
| 17 | |
| 18 | properties: |
| 19 | compatible: |
| 20 | const: video-mux |
| 21 | |
| 22 | mux-controls: |
| 23 | maxItems: 1 |
| 24 | |
| 25 | '#address-cells': |
| 26 | const: 1 |
| 27 | |
| 28 | '#size-cells': |
| 29 | const: 0 |
| 30 | |
| 31 | ports: |
| 32 | $ref: /schemas/graph.yaml#/properties/ports |
| 33 | |
| 34 | patternProperties: |
| 35 | '^port@': |
| 36 | $ref: /schemas/graph.yaml#/properties/port |
| 37 | |
| 38 | required: |
| 39 | - port@0 |
| 40 | - port@1 |
| 41 | - port@2 |
| 42 | |
| 43 | patternProperties: |
| 44 | '^port@': |
| 45 | $ref: /schemas/graph.yaml#/properties/port |
| 46 | description: |
| 47 | At least three port nodes containing endpoints connecting to the source |
| 48 | and sink devices according to of_graph bindings. The last port is the |
| 49 | output port, all others are inputs. |
| 50 | |
| 51 | required: |
| 52 | - compatible |
| 53 | - mux-controls |
| 54 | |
| 55 | oneOf: |
| 56 | - required: |
| 57 | - ports |
| 58 | - required: |
| 59 | - port@0 |
| 60 | - port@1 |
| 61 | - port@2 |
| 62 | |
| 63 | additionalProperties: false |
| 64 | |
| 65 | examples: |
| 66 | - | |
| 67 | #include <dt-bindings/gpio/gpio.h> |
| 68 | |
| 69 | mux: mux-controller { |
| 70 | compatible = "gpio-mux"; |
| 71 | #mux-control-cells = <0>; |
| 72 | |
| 73 | mux-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; |
| 74 | }; |
| 75 | |
| 76 | video-mux { |
| 77 | compatible = "video-mux"; |
| 78 | mux-controls = <&mux>; |
| 79 | #address-cells = <1>; |
| 80 | #size-cells = <0>; |
| 81 | |
| 82 | port@0 { |
| 83 | reg = <0>; |
| 84 | |
| 85 | mux_in0: endpoint { |
| 86 | remote-endpoint = <&video_source0_out>; |
| 87 | }; |
| 88 | }; |
| 89 | |
| 90 | port@1 { |
| 91 | reg = <1>; |
| 92 | |
| 93 | mux_in1: endpoint { |
| 94 | remote-endpoint = <&video_source1_out>; |
| 95 | }; |
| 96 | }; |
| 97 | |
| 98 | port@2 { |
| 99 | reg = <2>; |
| 100 | |
| 101 | mux_out: endpoint { |
| 102 | remote-endpoint = <&capture_interface_in>; |
| 103 | }; |
| 104 | }; |
| 105 | }; |
| 106 | ... |