1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2# Copyright (C) 2022 SiFive, Inc. 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/pwm/snps,dw-apb-timers-pwm2.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: Synopsys DW-APB timers PWM controller 9 10maintainers: 11 - Ben Dooks <ben.dooks@sifive.com> 12 13description: 14 This describes the DesignWare APB timers module when used in the PWM 15 mode. The IP core can be generated with various options which can 16 control the functionality, the number of PWMs available and other 17 internal controls the designer requires. 18 19 The IP block has a version register so this can be used for detection 20 instead of having to encode the IP version number in the device tree 21 compatible. 22 23allOf: 24 - $ref: pwm.yaml# 25 26properties: 27 compatible: 28 const: snps,dw-apb-timers-pwm2 29 30 reg: 31 maxItems: 1 32 33 "#pwm-cells": 34 const: 3 35 36 clocks: 37 items: 38 - description: Interface bus clock 39 - description: PWM reference clock 40 41 clock-names: 42 items: 43 - const: bus 44 - const: timer 45 46 snps,pwm-number: 47 $ref: /schemas/types.yaml#/definitions/uint32 48 description: The number of PWM channels configured for this instance 49 enum: [1, 2, 3, 4, 5, 6, 7, 8] 50 51required: 52 - compatible 53 - reg 54 - clocks 55 - clock-names 56 57additionalProperties: false 58 59examples: 60 - | 61 pwm: pwm@180000 { 62 compatible = "snps,dw-apb-timers-pwm2"; 63 reg = <0x180000 0x200>; 64 #pwm-cells = <3>; 65 clocks = <&bus>, <&timer>; 66 clock-names = "bus", "timer"; 67 }; 68