linux-kernel - Re: [PATCH] IIO: bmp280-core.c: fix error in humidity calculation

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Message-ID: <9FFBD449-625B-46A5-A6FD-D23A41E5EB9D@jic23.retrosnub.co.uk>
Date:   Sun, 02 Apr 2017 18:46:43 +0100
From:   Jonathan Cameron <jic23@...23.retrosnub.co.uk>
To:     Andreas Klinger <ak@...klinger.de>,
        Linus Walleij <linus.walleij@...aro.org>
CC:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald <pmeerw@...erw.net>, ddvlad@...il.com,
        Akinobu Mita <akinobu.mita@...il.com>,
        Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
        Aniroop Mathur <a.mathur@...sung.com>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        matt.ranostay@...sulko.com
Subject: Re: [PATCH] IIO: bmp280-core.c: fix error in humidity calculation



On 2 April 2017 18:29:49 BST, Andreas Klinger <ak@...klinger.de> wrote:
>Linus Walleij <linus.walleij@...aro.org> schrieb am Sun, 02. Apr 16:56:
>> On Sun, Apr 2, 2017 at 11:32 AM, Jonathan Cameron <jic23@...nel.org>
>wrote:
>> > On 27/03/17 11:06, Andreas Klinger wrote:
>> >> While calculating the compensation of the humidity there are
>negative
>> >> values interpreted as unsigned because of unsigned variables used.
>> >> These values need to be casted to signed as indicated by the
>documentation
>> >> of the sensor.
>> >>
>> >> Signed-off-by: Andreas Klinger <ak@...klinger.de>
>> >
>> > Looks superficially right to me, but would like an Ack from Linus
>Walleij.
>> 
>> I didn't work on these calculations, only infrastructure for the
>driver
>> but FWIW:
>> Acked-by: Linus Walleij <linus.walleij@...aro.org>
>> 
>> Matt Ranostay @Intel is the person you probably want to ACK it
>though,
>> he added the humidity calculations :)
He's now at Konsulko.
Ccd
>
>It just turned out that there must be another error in the calculation.
>I'll fix
>and test it first.
>
>When i'm done i'll send a new version of the patch.
>
>Andreas
>
>> 
>> Yours,
>> Linus Walleij

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