Kernel-4.18.0-80.el8_nsa320-mcu

Bindings for the fan / temperature monitor microcontroller used on
the Zyxel NSA 320 and several subsequent models.

Required properties:

• compatible : “zyxel,nsa320-mcu”
• data-gpios : The GPIO pin connected to the data line on the MCU
• clk-gpios : The GPIO pin connected to the clock line on the MCU
• act-gpios : The GPIO pin connected to the active line on the MCU

Example:

hwmon {
    compatible = "zyxel,nsa320-mcu";
    pinctrl-0 = <&pmx_mcu_data &pmx_mcu_clk &pmx_mcu_act>;
    pinctrl-names = "default";

    data-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
    clk-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
    act-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
};