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dt-bindings: hwmon: zyxel,nsa320-mcu: convert to DT schema

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Convert the ZyXEL NSA320 MCU bindings from text format to YAML schema.

Signed-off-by: Manish Baing <manishbaing2789@gmail.com>
Acked-by: Adam Baker <linux@baker-net.org.uk>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260501102116.8275-1-manishbaing2789@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Manish Baing authored and Guenter Roeck committed 2026-06-09 08:22:59 -07:00
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commit 7c13c75177
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Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt
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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>;
};
Documentation/devicetree/bindings/hwmon/zyxel,nsa320-mcu.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/hwmon/zyxel,nsa320-mcu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ZyXEL NSA320 MCU
maintainers:
- Adam Baker <linux@baker-net.org.uk>
- Guenter Roeck <linux@roeck-us.net>
description:
The ZyXEL NSA320 uses a dedicated microcontroller to manage system-critical
functions like fan speed and power monitoring. It is connected to the SoC
via a GPIO-based serial protocol.
properties:
compatible:
const: zyxel,nsa320-mcu
data-gpios:
maxItems: 1
description: GPIO pin connected to the data line on the MCU.
clk-gpios:
maxItems: 1
description: GPIO pin connected to the clock line on the MCU.
act-gpios:
maxItems: 1
description: GPIO pin connected to the active line on the MCU.
required:
- compatible
- data-gpios
- clk-gpios
- act-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
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>;
};