linux-kernel - Re: [PATCH 1/3] hwmon: Add thermal sensor driver for Surface Aggregator Module

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Message-ID: <7ba2554a-4f71-4ca0-ab49-59dbd03e1968@roeck-us.net>
Date: Tue, 16 Apr 2024 06:27:23 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Maximilian Luz <luzmaximilian@...il.com>
Cc: Jean Delvare <jdelvare@...e.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Hans de Goede <hdegoede@...hat.com>,
	Ivor Wanders <ivor@...nders.net>, linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org, linux-hwmon@...r.kernel.org
Subject: Re: [PATCH 1/3] hwmon: Add thermal sensor driver for Surface
 Aggregator Module

On Sat, Mar 30, 2024 at 12:24:00PM +0100, Maximilian Luz wrote:
> Some of the newer Microsoft Surface devices (such as the Surface Book
> 3 and Pro 9) have thermal sensors connected via the Surface Aggregator
> Module (the embedded controller on those devices). Add a basic driver
> to read out the temperature values of those sensors.
> 
> Link: https://github.com/linux-surface/surface-aggregator-module/issues/59
> Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>
> Reviewed-by: Hans de Goede <hdegoede@...hat.com>
> ---
[ ... ]
> +	hwmon_dev = devm_hwmon_device_register_with_info(&sdev->dev,
> +			"surface_thermal", ssam_temp, &ssam_temp_hwmon_chip_info,
> +			NULL);
> +	if (IS_ERR(hwmon_dev))
> +		return PTR_ERR(hwmon_dev);
> +
> +	return 0;

	return PTR_ERR_OR_ZERO(hwmon_dev);