| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Raspberry Pi VideoCore firmware driver |
| |
| maintainers: |
| - Eric Anholt <eric@anholt.net> |
| - Stefan Wahren <wahrenst@gmx.net> |
| |
| select: |
| properties: |
| compatible: |
| contains: |
| const: raspberrypi,bcm2835-firmware |
| |
| required: |
| - compatible |
| |
| properties: |
| compatible: |
| items: |
| - const: raspberrypi,bcm2835-firmware |
| - const: simple-mfd |
| |
| mboxes: |
| maxItems: 1 |
| |
| clocks: |
| type: object |
| additionalProperties: false |
| |
| properties: |
| compatible: |
| const: raspberrypi,firmware-clocks |
| |
| "#clock-cells": |
| const: 1 |
| description: > |
| The argument is the ID of the clocks contained by the |
| firmware messages. |
| |
| required: |
| - compatible |
| - "#clock-cells" |
| |
| gpio: |
| type: object |
| additionalProperties: false |
| |
| properties: |
| compatible: |
| const: raspberrypi,firmware-gpio |
| |
| gpio-controller: true |
| |
| "#gpio-cells": |
| const: 2 |
| description: |
| The first cell is the pin number, and the second cell is used to |
| specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW). |
| |
| gpio-line-names: |
| minItems: 8 |
| |
| required: |
| - compatible |
| - gpio-controller |
| - "#gpio-cells" |
| |
| reset: |
| type: object |
| additionalProperties: false |
| |
| properties: |
| compatible: |
| const: raspberrypi,firmware-reset |
| |
| "#reset-cells": |
| const: 1 |
| description: > |
| The argument is the ID of the firmware reset line to affect. |
| |
| required: |
| - compatible |
| - "#reset-cells" |
| |
| pwm: |
| type: object |
| additionalProperties: false |
| |
| properties: |
| compatible: |
| const: raspberrypi,firmware-poe-pwm |
| |
| "#pwm-cells": |
| # See pwm.yaml in this directory for a description of the cells format. |
| const: 2 |
| |
| required: |
| - compatible |
| - "#pwm-cells" |
| |
| required: |
| - compatible |
| - mboxes |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| firmware { |
| compatible = "raspberrypi,bcm2835-firmware", "simple-mfd"; |
| mboxes = <&mailbox>; |
| |
| firmware_clocks: clocks { |
| compatible = "raspberrypi,firmware-clocks"; |
| #clock-cells = <1>; |
| }; |
| |
| expgpio: gpio { |
| compatible = "raspberrypi,firmware-gpio"; |
| gpio-controller; |
| #gpio-cells = <2>; |
| }; |
| |
| reset: reset { |
| compatible = "raspberrypi,firmware-reset"; |
| #reset-cells = <1>; |
| }; |
| |
| pwm: pwm { |
| compatible = "raspberrypi,firmware-poe-pwm"; |
| #pwm-cells = <2>; |
| }; |
| }; |
| ... |
