1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: "http://devicetree.org/schemas/soc/bcm/brcm,bcm2835-pm.yaml#" 5$schema: "http://devicetree.org/meta-schemas/core.yaml#" 6 7title: BCM2835 PM (Power domains, watchdog) 8 9description: | 10 The PM block controls power domains and some reset lines, and includes a 11 watchdog timer. 12 13maintainers: 14 - Nicolas Saenz Julienne <nsaenz@kernel.org> 15 16allOf: 17 - $ref: ../../watchdog/watchdog.yaml# 18 19properties: 20 compatible: 21 items: 22 - const: brcm,bcm2835-pm 23 - const: brcm,bcm2835-pm-wdt 24 25 reg: 26 minItems: 2 27 maxItems: 2 28 29 reg-names: 30 items: 31 - const: pm 32 - const: asb 33 34 "#power-domain-cells": 35 const: 1 36 37 "#reset-cells": 38 const: 1 39 40 clocks: 41 minItems: 4 42 maxItems: 4 43 44 clock-names: 45 items: 46 - const: v3d 47 - const: peri_image 48 - const: h264 49 - const: isp 50 51 system-power-controller: 52 type: boolean 53 54 timeout-sec: true 55 56required: 57 - compatible 58 - reg 59 - "#power-domain-cells" 60 - "#reset-cells" 61 - clocks 62 63additionalProperties: false 64 65examples: 66 - | 67 #include <dt-bindings/clock/bcm2835.h> 68 69 watchdog@7e100000 { 70 compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt"; 71 #power-domain-cells = <1>; 72 #reset-cells = <1>; 73 reg = <0x7e100000 0x114>, 74 <0x7e00a000 0x24>; 75 reg-names = "pm", "asb"; 76 clocks = <&clocks BCM2835_CLOCK_V3D>, 77 <&clocks BCM2835_CLOCK_PERI_IMAGE>, 78 <&clocks BCM2835_CLOCK_H264>, 79 <&clocks BCM2835_CLOCK_ISP>; 80 clock-names = "v3d", "peri_image", "h264", "isp"; 81 system-power-controller; 82 }; 83