linux-kernel - Re: [PATCH] hwmon: add support for SMSC EMC2305/03/02/01 fan controller

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Date:   Mon, 28 Sep 2020 09:28:39 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Biwen Li <biwen.li@....nxp.com>
Cc:     jdelvare@...e.com, robh+dt@...nel.org, mark.rutland@....com,
        linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Reinhard Pfau <pfau@...ys.de>,
        Biwen Li <biwen.li@....com>
Subject: Re: [PATCH] hwmon: add support for SMSC EMC2305/03/02/01 fan
 controller

On Mon, Sep 28, 2020 at 06:43:26PM +0800, Biwen Li wrote:
> From: Reinhard Pfau <pfau@...ys.de>
> 
> Add support for SMSC EMC2305, EMC2303, EMC2302, EMC2301 fan controller
> chips.
> The driver primary supports the EMC2305 chip which provides RPM-based
> PWM control and monitoring for up to 5 fans.
> 
> According to the SMSC data sheets the EMC2303, EMC2302 and EMC2301 chips
> have basically the same functionality and register layout, but support
> less fans and (in case of EMC2302 and EMC2301) less possible I2C addresses.
> The driver supports them, too.
> 
> The driver supports configuration via devicetree. This can also be used
> to restrict the fans exposed via sysfs (see doc for details).
> 
> Signed-off-by: Reinhard Pfau <pfau@...ys.de>
> Signed-off-by: Biwen Li <biwen.li@....com>
> ---
...

> +
> +	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
> +							   client->name, data,
> +							   data->groups);

New drivers must use "[devm_]hwmon_device_register_with_info" to register
with the hwmon subsystem.

Guenter