1*c66ec88fSEmmanuel Vadot# SPDX-License-Identifier: GPL-2.0 2*c66ec88fSEmmanuel Vadot%YAML 1.2 3*c66ec88fSEmmanuel Vadot--- 4*c66ec88fSEmmanuel Vadot$id: http://devicetree.org/schemas/power/supply/gpio-charger.yaml# 5*c66ec88fSEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml# 6*c66ec88fSEmmanuel Vadot 7*c66ec88fSEmmanuel Vadottitle: simple battery chargers only communicating through GPIOs 8*c66ec88fSEmmanuel Vadot 9*c66ec88fSEmmanuel Vadotmaintainers: 10*c66ec88fSEmmanuel Vadot - Sebastian Reichel <sre@kernel.org> 11*c66ec88fSEmmanuel Vadot 12*c66ec88fSEmmanuel Vadotdescription: 13*c66ec88fSEmmanuel Vadot This binding is for all chargers, which are working more or less 14*c66ec88fSEmmanuel Vadot autonomously, only providing some status GPIOs and possibly some 15*c66ec88fSEmmanuel Vadot GPIOs for limited control over the charging process. 16*c66ec88fSEmmanuel Vadot 17*c66ec88fSEmmanuel Vadotproperties: 18*c66ec88fSEmmanuel Vadot compatible: 19*c66ec88fSEmmanuel Vadot const: gpio-charger 20*c66ec88fSEmmanuel Vadot 21*c66ec88fSEmmanuel Vadot charger-type: 22*c66ec88fSEmmanuel Vadot enum: 23*c66ec88fSEmmanuel Vadot - unknown 24*c66ec88fSEmmanuel Vadot - battery 25*c66ec88fSEmmanuel Vadot - ups 26*c66ec88fSEmmanuel Vadot - mains 27*c66ec88fSEmmanuel Vadot - usb-sdp # USB standard downstream port 28*c66ec88fSEmmanuel Vadot - usb-dcp # USB dedicated charging port 29*c66ec88fSEmmanuel Vadot - usb-cdp # USB charging downstream port 30*c66ec88fSEmmanuel Vadot - usb-aca # USB accessory charger adapter 31*c66ec88fSEmmanuel Vadot description: 32*c66ec88fSEmmanuel Vadot Type of the charger, e.g. "mains" for a wall charger. 33*c66ec88fSEmmanuel Vadot 34*c66ec88fSEmmanuel Vadot gpios: 35*c66ec88fSEmmanuel Vadot maxItems: 1 36*c66ec88fSEmmanuel Vadot description: GPIO indicating the charger presence 37*c66ec88fSEmmanuel Vadot 38*c66ec88fSEmmanuel Vadot charge-status-gpios: 39*c66ec88fSEmmanuel Vadot maxItems: 1 40*c66ec88fSEmmanuel Vadot description: GPIO indicating the charging status 41*c66ec88fSEmmanuel Vadot 42*c66ec88fSEmmanuel Vadotrequired: 43*c66ec88fSEmmanuel Vadot - compatible 44*c66ec88fSEmmanuel Vadot 45*c66ec88fSEmmanuel VadotanyOf: 46*c66ec88fSEmmanuel Vadot - required: 47*c66ec88fSEmmanuel Vadot - gpios 48*c66ec88fSEmmanuel Vadot - required: 49*c66ec88fSEmmanuel Vadot - charge-status-gpios 50*c66ec88fSEmmanuel Vadot 51*c66ec88fSEmmanuel VadotadditionalProperties: false 52*c66ec88fSEmmanuel Vadot 53*c66ec88fSEmmanuel Vadotexamples: 54*c66ec88fSEmmanuel Vadot - | 55*c66ec88fSEmmanuel Vadot #include <dt-bindings/gpio/gpio.h> 56*c66ec88fSEmmanuel Vadot 57*c66ec88fSEmmanuel Vadot charger { 58*c66ec88fSEmmanuel Vadot compatible = "gpio-charger"; 59*c66ec88fSEmmanuel Vadot charger-type = "usb-sdp"; 60*c66ec88fSEmmanuel Vadot 61*c66ec88fSEmmanuel Vadot gpios = <&gpd 28 GPIO_ACTIVE_LOW>; 62*c66ec88fSEmmanuel Vadot charge-status-gpios = <&gpc 27 GPIO_ACTIVE_LOW>; 63*c66ec88fSEmmanuel Vadot }; 64