From: Stefan Wahren <stefan.wahren@i2se.com>
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
Marek Vasut <marex@denx.de>
Cc: "Lars-Peter Clausen" <lars@metafoo.de>,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
"Janusz Użycki" <j.uzycki@elpromaelectronics.com>,
"Jonathan Cameron" <jic23@kernel.org>
Subject: Re: [PATCH] iio: mxs-lradc: Fix temperature offset
Date: Wed, 7 Oct 2015 09:12:56 +0200 [thread overview]
Message-ID: <5614C5F8.5020000@i2se.com> (raw)
In-Reply-To: <20151007004447.GC3485@piout.net>
Am 07.10.2015 um 02:44 schrieb Alexandre Belloni:
> Hi,
>
> On 07/10/2015 at 01:19:09 +0200, Marek Vasut wrote :
>>>> /* The calculated value from the ADC is in Kelvin, we
>>>> * want Celsius for hwmon so the offset is
>>>> - * -272.15 * scale
>>>> + * -273.15 * scale
>>>> */
>>>> - *val = -1075;
>>>> - *val2 = 691699;
>>>> + *val = -1079;
>>>> + *val2 = 644268;
>>>>
>>> i think it would be nice to break down the calculation of these magic values in
>>> a second patch.
>> Indeed, I agree. I hope Alexandre can send another patch for that soon :-)
>>
> On my side, I'm not sure this is worth more than a comment. If
> necessary, I can write that the datasheet specifies that the scale is
> 4/1.012 here also.
I'm okay with that.
next prev parent reply other threads:[~2015-10-07 7:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-06 14:22 Alexandre Belloni
2015-10-06 18:43 ` Stefan Wahren
2015-10-06 23:19 ` Marek Vasut
2015-10-07 0:44 ` Alexandre Belloni
2015-10-07 7:12 ` Stefan Wahren [this message]
2015-10-08 21:12 ` Marek Vasut
2015-10-06 23:13 ` Marek Vasut
2015-10-11 14:03 ` Jonathan Cameron
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