// SPDX-License-Identifier: (GPL-2.0+ OR MIT) /* * Copyright (c) 2023 Rockchip Electronics Co., Ltd. * */ / { nca9539_vdd: nca9539-vdd3v3 { compatible = "regulator-fixed"; regulator-name = "nca9539_vdd"; regulator-boot-on; regulator-always-on; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; startup-delay-us = <20>; // NCA9539 POR vin-supply = <&vcc_3v3_s0>; }; }; &i2c7 { pinctrl-0 = <&i2c7m1_xfer>; clock-frequency = <400000>; status = "okay"; nca9539_gpio: gpio@74 { status = "okay"; compatible = "novo,nca9539-gpio"; reg = <0x74>; gpio-controller; #gpio-cells = <2>; ngpios = <16>; interrupt-controller; #interrupt-cells = <2>; vdd-supply = <&nca9539_vdd>; }; };