projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| c5e8f4cc MR |
1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 | |
| 3 | --- | |
| e1056f9b | 4 | $id: http://devicetree.org/schemas/media/allwinner,sun4i-a10-csi.yaml# |
| c5e8f4cc MR |
5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | ||
| 7 | title: Allwinner A10 CMOS Sensor Interface (CSI) Device Tree Bindings | |
| 8 | ||
| 9 | maintainers: | |
| 10 | - Chen-Yu Tsai <wens@csie.org> | |
| 11 | - Maxime Ripard <maxime.ripard@bootlin.com> | |
| 12 | ||
| 13 | description: |- | |
| 14 | The Allwinner A10 and later has a CMOS Sensor Interface to retrieve | |
| 15 | frames from a parallel or BT656 sensor. | |
| 16 | ||
| 17 | properties: | |
| 18 | compatible: | |
| 19 | const: allwinner,sun7i-a20-csi0 | |
| 20 | ||
| 21 | reg: | |
| 22 | maxItems: 1 | |
| 23 | ||
| 24 | interrupts: | |
| 25 | maxItems: 1 | |
| 26 | ||
| 27 | clocks: | |
| 28 | items: | |
| 29 | - description: The CSI interface clock | |
| 30 | - description: The CSI module clock | |
| 31 | - description: The CSI ISP clock | |
| 32 | - description: The CSI DRAM clock | |
| 33 | ||
| 34 | clock-names: | |
| 35 | items: | |
| 36 | - const: bus | |
| 37 | - const: mod | |
| 38 | - const: isp | |
| 39 | - const: ram | |
| 40 | ||
| 41 | resets: | |
| 42 | maxItems: 1 | |
| 43 | ||
| 44 | # See ./video-interfaces.txt for details | |
| 45 | port: | |
| 46 | type: object | |
| 47 | additionalProperties: false | |
| 48 | ||
| 49 | properties: | |
| 50 | endpoint: | |
| 51 | type: object | |
| 52 | ||
| 53 | properties: | |
| 54 | bus-width: | |
| 55 | enum: [8, 16] | |
| 56 | ||
| 57 | data-active: true | |
| 58 | hsync-active: true | |
| 59 | pclk-sample: true | |
| 60 | remote-endpoint: true | |
| 61 | vsync-active: true | |
| 62 | ||
| 63 | required: | |
| 64 | - bus-width | |
| 65 | - data-active | |
| 66 | - hsync-active | |
| 67 | - pclk-sample | |
| 68 | - remote-endpoint | |
| 69 | - vsync-active | |
| 70 | ||
| 71 | required: | |
| 72 | - endpoint | |
| 73 | ||
| 74 | required: | |
| 75 | - compatible | |
| 76 | - reg | |
| 77 | - interrupts | |
| 78 | - clocks | |
| 79 | ||
| 80 | additionalProperties: false | |
| 81 | ||
| 82 | examples: | |
| 83 | - | | |
| 84 | #include <dt-bindings/interrupt-controller/arm-gic.h> | |
| 85 | #include <dt-bindings/clock/sun7i-a20-ccu.h> | |
| 86 | #include <dt-bindings/reset/sun4i-a10-ccu.h> | |
| 87 | ||
| 88 | csi0: csi@1c09000 { | |
| 89 | compatible = "allwinner,sun7i-a20-csi0"; | |
| 90 | reg = <0x01c09000 0x1000>; | |
| 91 | interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>; | |
| 92 | clocks = <&ccu CLK_AHB_CSI0>, <&ccu CLK_CSI0>, | |
| 93 | <&ccu CLK_CSI_SCLK>, <&ccu CLK_DRAM_CSI0>; | |
| 94 | clock-names = "bus", "mod", "isp", "ram"; | |
| 95 | resets = <&ccu RST_CSI0>; | |
| 96 | ||
| 97 | port { | |
| 98 | csi_from_ov5640: endpoint { | |
| 99 | remote-endpoint = <&ov5640_to_csi>; | |
| 100 | bus-width = <8>; | |
| 101 | hsync-active = <1>; /* Active high */ | |
| 102 | vsync-active = <0>; /* Active low */ | |
| 103 | data-active = <1>; /* Active high */ | |
| 104 | pclk-sample = <1>; /* Rising */ | |
| 105 | }; | |
| 106 | }; | |
| 107 | }; | |
| 108 | ||
| 109 | ... |