1 Bindings for the fan / temperature monitor mic 1 Bindings for the fan / temperature monitor microcontroller used on
2 the Zyxel NSA 320 and several subsequent model 2 the Zyxel NSA 320 and several subsequent models.
3 3
4 Required properties: 4 Required properties:
5 - compatible : "zyxel,nsa320-mcu" 5 - compatible : "zyxel,nsa320-mcu"
6 - data-gpios : The GPIO pin connected to th 6 - data-gpios : The GPIO pin connected to the data line on the MCU
7 - clk-gpios : The GPIO pin connected to th 7 - clk-gpios : The GPIO pin connected to the clock line on the MCU
8 - act-gpios : The GPIO pin connected to th 8 - act-gpios : The GPIO pin connected to the active line on the MCU
9 9
10 Example: 10 Example:
11 11
12 hwmon { 12 hwmon {
13 compatible = "zyxel,nsa320-mcu 13 compatible = "zyxel,nsa320-mcu";
14 pinctrl-0 = <&pmx_mcu_data &pm 14 pinctrl-0 = <&pmx_mcu_data &pmx_mcu_clk &pmx_mcu_act>;
15 pinctrl-names = "default"; 15 pinctrl-names = "default";
16 16
17 data-gpios = <&gpio0 14 GPIO_A 17 data-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
18 clk-gpios = <&gpio0 16 GPIO_AC 18 clk-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
19 act-gpios = <&gpio0 17 GPIO_AC 19 act-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
20 }; 20 };
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