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 7title: Raspberry Pi VideoCore firmware driver 8 9maintainers: 10 - Eric Anholt <eric@anholt.net> 11 - Stefan Wahren <wahrenst@gmx.net> 12 13select: 14 properties: 15 compatible: 16 contains: 17 const: raspberrypi,bcm2835-firmware 18 19 required: 20 - compatible 21 22properties: 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 34 properties: 35 compatible: 36 const: raspberrypi,firmware-clocks 37 38 "#clock-cells": 39 const: 1 40 description: > 41 The argument is the ID of the clocks contained by the 42 firmware messages. 43 44 required: 45 - compatible 46 - "#clock-cells" 47 48 reset: 49 type: object 50 51 properties: 52 compatible: 53 const: raspberrypi,firmware-reset 54 55 "#reset-cells": 56 const: 1 57 description: > 58 The argument is the ID of the firmware reset line to affect. 59 60 required: 61 - compatible 62 - "#reset-cells" 63 64 pwm: 65 type: object 66 67 properties: 68 compatible: 69 const: raspberrypi,firmware-poe-pwm 70 71 "#pwm-cells": 72 # See pwm.yaml in this directory for a description of the cells format. 73 const: 2 74 75 required: 76 - compatible 77 - "#pwm-cells" 78 79 additionalProperties: false 80 81required: 82 - compatible 83 - mboxes 84 85additionalProperties: false 86 87examples: 88 - | 89 firmware { 90 compatible = "raspberrypi,bcm2835-firmware", "simple-mfd"; 91 mboxes = <&mailbox>; 92 93 firmware_clocks: clocks { 94 compatible = "raspberrypi,firmware-clocks"; 95 #clock-cells = <1>; 96 }; 97 98 reset: reset { 99 compatible = "raspberrypi,firmware-reset"; 100 #reset-cells = <1>; 101 }; 102 103 pwm: pwm { 104 compatible = "raspberrypi,firmware-poe-pwm"; 105 #pwm-cells = <2>; 106 }; 107 }; 108... 109