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Message-ID: <20250627213454.GA179652-robh@kernel.org>
Date: Fri, 27 Jun 2025 16:34:54 -0500
From: Rob Herring <robh@...nel.org>
To: Álvaro Fernández Rojas <noltari@...il.com>
Cc: jdelvare@...e.com, linux@...ck-us.net, krzk+dt@...nel.org,
conor+dt@...nel.org, corbet@....net, linux-hwmon@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-doc@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: hwmon: Add Microchip EMC2101 support
On Thu, Jun 26, 2025 at 01:33:50PM +0200, Álvaro Fernández Rojas wrote:
> Introduce yaml schema for Microchip emc2101 pwm fan controller with
> temperature monitoring.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
> ---
> .../bindings/hwmon/microchip,emc2101.yaml | 52 +++++++++++++++++++
> 1 file changed, 52 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/microchip,emc2101.yaml
>
> diff --git a/Documentation/devicetree/bindings/hwmon/microchip,emc2101.yaml b/Documentation/devicetree/bindings/hwmon/microchip,emc2101.yaml
> new file mode 100644
> index 000000000000..e73f1f9d43f4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/microchip,emc2101.yaml
> @@ -0,0 +1,52 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/microchip,emc2101.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip EMC2101 SMBus compliant PWM fan controller
> +
> +maintainers:
> + - Álvaro Fernández Rojas <noltari@...il.com>
> +
> +description:
> + Microchip EMC2101 pwm controller which supports up to 1 fan, 1 internal
> + temperature sensor, 1 external temperature sensor and an 8 entry look
> + up table to create a programmable temperature response.
> +
> +properties:
> + compatible:
> + enum:
> + - microchip,emc2101
> + - microchip,emc2101-r
> +
> + reg:
> + maxItems: 1
> +
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
What are these for? You don't have any child nodes.
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + fan_controller: fan-controller@4c {
> + compatible = "microchip,emc2101";
> + reg = <0x4c>;
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> + };
> +...
> --
> 2.39.5
>
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