| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright 2019 BayLibre, SAS |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/media/amlogic,gx-vdec.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Amlogic Video Decoder |
| 9 | |
| 10 | maintainers: |
| 11 | - Neil Armstrong <neil.armstrong@linaro.org> |
| 12 | - Maxime Jourdan <mjourdan@baylibre.com> |
| 13 | |
| 14 | description: | |
| 15 | The video decoding IP lies within the DOS memory region, |
| 16 | except for the hardware bitstream parser that makes use of an undocumented |
| 17 | region. |
| 18 | |
| 19 | It makes use of the following blocks: |
| 20 | - ESPARSER is a bitstream parser that outputs to a VIFIFO. Further VDEC blocks |
| 21 | then feed from this VIFIFO. |
| 22 | - VDEC_1 can decode MPEG-1, MPEG-2, MPEG-4 part 2, MJPEG, H.263, H.264, VC-1. |
| 23 | - VDEC_HEVC can decode HEVC and VP9. |
| 24 | |
| 25 | Both VDEC_1 and VDEC_HEVC share the "vdec" IRQ and as such cannot run |
| 26 | concurrently. |
| 27 | |
| 28 | properties: |
| 29 | compatible: |
| 30 | oneOf: |
| 31 | - items: |
| 32 | - enum: |
| 33 | - amlogic,gxbb-vdec # GXBB (S905) |
| 34 | - amlogic,gxl-vdec # GXL (S905X, S905D) |
| 35 | - amlogic,gxm-vdec # GXM (S912) |
| 36 | - const: amlogic,gx-vdec |
| 37 | - enum: |
| 38 | - amlogic,g12a-vdec # G12A (S905X2, S905D2) |
| 39 | - amlogic,sm1-vdec # SM1 (S905X3, S905D3) |
| 40 | |
| 41 | interrupts: |
| 42 | minItems: 2 |
| 43 | |
| 44 | interrupt-names: |
| 45 | items: |
| 46 | - const: vdec |
| 47 | - const: esparser |
| 48 | |
| 49 | reg: |
| 50 | minItems: 2 |
| 51 | |
| 52 | reg-names: |
| 53 | items: |
| 54 | - const: dos |
| 55 | - const: esparser |
| 56 | |
| 57 | resets: |
| 58 | maxItems: 1 |
| 59 | |
| 60 | reset-names: |
| 61 | items: |
| 62 | - const: esparser |
| 63 | |
| 64 | clocks: |
| 65 | minItems: 4 |
| 66 | maxItems: 5 |
| 67 | |
| 68 | clock-names: |
| 69 | minItems: 4 |
| 70 | items: |
| 71 | - const: dos_parser |
| 72 | - const: dos |
| 73 | - const: vdec_1 |
| 74 | - const: vdec_hevc |
| 75 | - const: vdec_hevcf |
| 76 | |
| 77 | amlogic,ao-sysctrl: |
| 78 | description: should point to the AOBUS sysctrl node |
| 79 | $ref: /schemas/types.yaml#/definitions/phandle |
| 80 | |
| 81 | amlogic,canvas: |
| 82 | description: should point to a canvas provider node |
| 83 | $ref: /schemas/types.yaml#/definitions/phandle |
| 84 | |
| 85 | allOf: |
| 86 | - if: |
| 87 | properties: |
| 88 | compatible: |
| 89 | contains: |
| 90 | enum: |
| 91 | - amlogic,gx-vdec |
| 92 | |
| 93 | then: |
| 94 | properties: |
| 95 | clock-names: |
| 96 | maxItems: 4 |
| 97 | |
| 98 | - if: |
| 99 | properties: |
| 100 | compatible: |
| 101 | contains: |
| 102 | enum: |
| 103 | - amlogic,g12a-vdec |
| 104 | - amlogic,sm1-vdec |
| 105 | |
| 106 | then: |
| 107 | properties: |
| 108 | clock-names: |
| 109 | minItems: 5 |
| 110 | |
| 111 | required: |
| 112 | - compatible |
| 113 | - reg |
| 114 | - reg-names |
| 115 | - interrupts |
| 116 | - interrupt-names |
| 117 | - clocks |
| 118 | - clock-names |
| 119 | - resets |
| 120 | - reset-names |
| 121 | - amlogic,ao-sysctrl |
| 122 | - amlogic,canvas |
| 123 | |
| 124 | additionalProperties: false |
| 125 | |
| 126 | examples: |
| 127 | - | |
| 128 | vdec: video-decoder@c8820000 { |
| 129 | compatible = "amlogic,gxl-vdec", "amlogic,gx-vdec"; |
| 130 | reg = <0xc8820000 0x10000>, <0xc110a580 0xe4>; |
| 131 | reg-names = "dos", "esparser"; |
| 132 | interrupts = <44>, <32>; |
| 133 | interrupt-names = "vdec", "esparser"; |
| 134 | clocks = <&clk_dos_parser> ,<&clk_dos>, <&clk_vdec_1>, <&clk_vdec_hevc>; |
| 135 | clock-names = "dos_parser", "dos", "vdec_1", "vdec_hevc"; |
| 136 | resets = <&reset_parser>; |
| 137 | reset-names = "esparser"; |
| 138 | amlogic,ao-sysctrl = <&sysctrl_AO>; |
| 139 | amlogic,canvas = <&canvas>; |
| 140 | }; |