162306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 262306a36Sopenharmony_ci%YAML 1.2 362306a36Sopenharmony_ci--- 462306a36Sopenharmony_ci$id: http://devicetree.org/schemas/regulator/richtek,rt5739.yaml# 562306a36Sopenharmony_ci$schema: http://devicetree.org/meta-schemas/core.yaml# 662306a36Sopenharmony_ci 762306a36Sopenharmony_cititle: Richtek RT5739 Step-Down Buck Converter 862306a36Sopenharmony_ci 962306a36Sopenharmony_cimaintainers: 1062306a36Sopenharmony_ci - ChiYuan Huang <cy_huang@richtek.com> 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_cidescription: | 1362306a36Sopenharmony_ci The RT5739 is a step-down switching buck converter that can deliver the 1462306a36Sopenharmony_ci programmable output voltage from 300mV to 1300mV with wide input voltage 1562306a36Sopenharmony_ci supply of 2.5V to 5.5V. It can provide up to 3.5A continuous current 1662306a36Sopenharmony_ci capability at over 80% high efficiency. 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ciallOf: 1962306a36Sopenharmony_ci - $ref: regulator.yaml# 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ciproperties: 2262306a36Sopenharmony_ci compatible: 2362306a36Sopenharmony_ci enum: 2462306a36Sopenharmony_ci - richtek,rt5733 2562306a36Sopenharmony_ci - richtek,rt5739 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci reg: 2862306a36Sopenharmony_ci maxItems: 1 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci enable-gpios: 3162306a36Sopenharmony_ci maxItems: 1 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci richtek,vsel-active-high: 3462306a36Sopenharmony_ci description: | 3562306a36Sopenharmony_ci If property is present, use the 'VSEL1' register group for buck control. 3662306a36Sopenharmony_ci Else, use the 'VSEL0' register group. This depends on external hardware 3762306a36Sopenharmony_ci 'VSEL' pin connection. 3862306a36Sopenharmony_ci type: boolean 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci regulator-allowed-modes: 4162306a36Sopenharmony_ci description: | 4262306a36Sopenharmony_ci buck allowed operating mode 4362306a36Sopenharmony_ci 0: Auto PFM/PWM mode 4462306a36Sopenharmony_ci 1: Forced PWM mode 4562306a36Sopenharmony_ci items: 4662306a36Sopenharmony_ci enum: [0, 1] 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_cirequired: 4962306a36Sopenharmony_ci - compatible 5062306a36Sopenharmony_ci - reg 5162306a36Sopenharmony_ci 5262306a36Sopenharmony_ciunevaluatedProperties: false 5362306a36Sopenharmony_ci 5462306a36Sopenharmony_ciexamples: 5562306a36Sopenharmony_ci - | 5662306a36Sopenharmony_ci #include <dt-bindings/gpio/gpio.h> 5762306a36Sopenharmony_ci 5862306a36Sopenharmony_ci i2c { 5962306a36Sopenharmony_ci #address-cells = <1>; 6062306a36Sopenharmony_ci #size-cells = <0>; 6162306a36Sopenharmony_ci 6262306a36Sopenharmony_ci regulator@50 { 6362306a36Sopenharmony_ci compatible = "richtek,rt5739"; 6462306a36Sopenharmony_ci reg = <0x50>; 6562306a36Sopenharmony_ci enable-gpios = <&gpio26 1 GPIO_ACTIVE_HIGH>; 6662306a36Sopenharmony_ci richtek,vsel-active-high; 6762306a36Sopenharmony_ci regulator-name = "richtek,rt5739-buck"; 6862306a36Sopenharmony_ci regulator-min-microvolt = <300000>; 6962306a36Sopenharmony_ci regulator-max-microvolt = <1300000>; 7062306a36Sopenharmony_ci regulator-allowed-modes = <0 1>; 7162306a36Sopenharmony_ci regulator-boot-on; 7262306a36Sopenharmony_ci }; 7362306a36Sopenharmony_ci }; 74