linux-kernel - Re: [PATCH 4.4 188/268] hwmon: (nct6775) Fix writing pwmX

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Message-ID: <1529254269.2289.212.camel@codethink.co.uk>
Date:   Sun, 17 Jun 2018 17:51:09 +0100
From:   Ben Hutchings <ben.hutchings@...ethink.co.uk>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     stable@...r.kernel.org,
        Sasha Levin <alexander.levin@...rosoft.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4.4 188/268] hwmon: (nct6775) Fix writing pwmX_mode

On Mon, 2018-05-28 at 12:02 +0200, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Guenter Roeck <linux@...ck-us.net>
> 
> [ Upstream commit 415eb2a1aaa4881cf85bd86c683356fdd8094a23 ]
> 
> pwmX_mode is defined in the ABI as 0=DC mode, 1=pwm mode. The chip
> register bit is set to 1 for DC mode. This got mixed up, and writing
> 1 into pwmX_mode resulted in DC mode enabled. Fix it up by using
> the ABI definition throughout the driver for consistency.
> 
> Fixes: 77eb5b3703d99 ("hwmon: (nct6775) Add support for pwm, pwm_mode, ... ")
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
> Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
[...]

The code changes look fine but the comment on the declaration of
nct6775_data::pwm_mode is now incorrect.

Ben.

-- 
Ben Hutchings, Software Developer                         Codethink Ltd
https://www.codethink.co.uk/                 Dale House, 35 Dale Street
                                     Manchester, M1 2HF, United Kingdom