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hwmon: Define binding for the nsa320-hwmon driver

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Define a binding for the hardware monitoring chip present in the Zyxel
NSA-320 and some of the other Zyxel NAS devices.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Acked-by: Rob Herring <robh@kernel.org>
[groeck: Fixed whitespace error]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Adam Baker 2016-03-05 15:34:55 +00:00 committed by Guenter Roeck
parent 709066acdd
commit 8d80124319
1 changed files with 20 additions and 0 deletions
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Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt Normal file
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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>;
};