linux-kernel - Re: [PATCH V5 3/3] hwmon: pwm-fan: Add RPM support via external interrupt

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Date:   Fri, 12 Apr 2019 15:15:55 +0200
From:   "Enrico Weigelt, metux IT consult" <lkml@...ux.net>
To:     Stefan Wahren <stefan.wahren@...e.com>,
        Kamil Debski <kamil@...as.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Robin Murphy <robin.murphy@....com>
Cc:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V5 3/3] hwmon: pwm-fan: Add RPM support via external
 interrupt

On 11.04.19 15:30, Stefan Wahren wrote:
> This adds RPM support to the pwm-fan driver in order to use with
> fancontrol/pwmconfig. This feature is intended for fans with a tachometer
> output signal, which generate a defined number of pulses per revolution.

Wouldn't it be better to have a CONFIG_* flag for keeping the kernel
image size smaller when this feature isn't needed ?


--mtx

-- 
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@...ux.net -- +49-151-27565287