| 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/arm/bcm/raspberrypi,bcm2835-firmware.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Raspberry Pi VideoCore firmware driver |
| 8 | |
| 9 | maintainers: |
| 10 | - Eric Anholt <eric@anholt.net> |
| 11 | - Stefan Wahren <wahrenst@gmx.net> |
| 12 | |
| 13 | select: |
| 14 | properties: |
| 15 | compatible: |
| 16 | contains: |
| 17 | const: raspberrypi,bcm2835-firmware |
| 18 | |
| 19 | required: |
| 20 | - compatible |
| 21 | |
| 22 | properties: |
| 23 | compatible: |
| 24 | items: |
| 25 | - const: raspberrypi,bcm2835-firmware |
| 26 | - const: simple-mfd |
| 27 | |
| 28 | mboxes: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | clocks: |
| 32 | type: object |
| 33 | additionalProperties: false |
| 34 | |
| 35 | properties: |
| 36 | compatible: |
| 37 | const: raspberrypi,firmware-clocks |
| 38 | |
| 39 | "#clock-cells": |
| 40 | const: 1 |
| 41 | description: > |
| 42 | The argument is the ID of the clocks contained by the |
| 43 | firmware messages. |
| 44 | |
| 45 | required: |
| 46 | - compatible |
| 47 | - "#clock-cells" |
| 48 | |
| Tom Rini | 762f85b | 2024-07-20 11:15:10 -0600 | [diff] [blame^] | 49 | gpio: |
| 50 | type: object |
| 51 | additionalProperties: false |
| 52 | |
| 53 | properties: |
| 54 | compatible: |
| 55 | const: raspberrypi,firmware-gpio |
| 56 | |
| 57 | gpio-controller: true |
| 58 | |
| 59 | "#gpio-cells": |
| 60 | const: 2 |
| 61 | description: |
| 62 | The first cell is the pin number, and the second cell is used to |
| 63 | specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW). |
| 64 | |
| 65 | gpio-line-names: |
| 66 | minItems: 8 |
| 67 | |
| 68 | required: |
| 69 | - compatible |
| 70 | - gpio-controller |
| 71 | - "#gpio-cells" |
| 72 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 73 | reset: |
| 74 | type: object |
| 75 | additionalProperties: false |
| 76 | |
| 77 | properties: |
| 78 | compatible: |
| 79 | const: raspberrypi,firmware-reset |
| 80 | |
| 81 | "#reset-cells": |
| 82 | const: 1 |
| 83 | description: > |
| 84 | The argument is the ID of the firmware reset line to affect. |
| 85 | |
| 86 | required: |
| 87 | - compatible |
| 88 | - "#reset-cells" |
| 89 | |
| 90 | pwm: |
| 91 | type: object |
| 92 | additionalProperties: false |
| 93 | |
| 94 | properties: |
| 95 | compatible: |
| 96 | const: raspberrypi,firmware-poe-pwm |
| 97 | |
| 98 | "#pwm-cells": |
| 99 | # See pwm.yaml in this directory for a description of the cells format. |
| 100 | const: 2 |
| 101 | |
| 102 | required: |
| 103 | - compatible |
| 104 | - "#pwm-cells" |
| 105 | |
| 106 | required: |
| 107 | - compatible |
| 108 | - mboxes |
| 109 | |
| 110 | additionalProperties: false |
| 111 | |
| 112 | examples: |
| 113 | - | |
| 114 | firmware { |
| 115 | compatible = "raspberrypi,bcm2835-firmware", "simple-mfd"; |
| 116 | mboxes = <&mailbox>; |
| 117 | |
| 118 | firmware_clocks: clocks { |
| 119 | compatible = "raspberrypi,firmware-clocks"; |
| 120 | #clock-cells = <1>; |
| 121 | }; |
| 122 | |
| Tom Rini | 762f85b | 2024-07-20 11:15:10 -0600 | [diff] [blame^] | 123 | expgpio: gpio { |
| 124 | compatible = "raspberrypi,firmware-gpio"; |
| 125 | gpio-controller; |
| 126 | #gpio-cells = <2>; |
| 127 | }; |
| 128 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 129 | reset: reset { |
| 130 | compatible = "raspberrypi,firmware-reset"; |
| 131 | #reset-cells = <1>; |
| 132 | }; |
| 133 | |
| 134 | pwm: pwm { |
| 135 | compatible = "raspberrypi,firmware-poe-pwm"; |
| 136 | #pwm-cells = <2>; |
| 137 | }; |
| 138 | }; |
| 139 | ... |