Re: [PATCH 4.4 188/268] hwmon: (nct6775) Fix writing pwmX_mode
From: Ben Hutchings
Date: Sun Jun 17 2018 - 12:51:20 EST
On Mon, 2018-05-28 at 12:02 +0200, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.ÂÂIf anyone has any objections, please let me know.
>
> ------------------
>
> From: Guenter Roeck <linux@xxxxxxxxxxxx>
>
> [ 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@xxxxxxxxxxxx>
> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
[...]
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