linux-kernel - Re: [PATCH 2/3] thermal: Add Mediatek thermal controller support

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Message-ID: <55D654C3.4040808@linaro.org>
Date:	Fri, 21 Aug 2015 00:29:23 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Eduardo Valentin <edubezval@...il.com>,
	Sascha Hauer <s.hauer@...gutronix.de>
CC:	linux-pm@...r.kernel.org, Zhang Rui <rui.zhang@...el.com>,
	linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
	Daniel Kurtz <djkurtz@...omium.org>, kernel@...gutronix.de,
	Matthias Brugger <matthias.bgg@...il.com>
Subject: Re: [PATCH 2/3] thermal: Add Mediatek thermal controller support

On 08/21/2015 12:20 AM, Eduardo Valentin wrote:
> On Thu, Aug 20, 2015 at 10:06:01AM +0200, Sascha Hauer wrote:
>> This adds support for the Mediatek thermal controller found on MT8173
>> and likely other SoCs.
>> The controller is a bit special. It does not have its own ADC, instead
>> it controls the on-SoC AUXADC via AHB bus accesses. For this reason
>> we need the physical address of the AUXADC. Also it controls a mux
>> using AHB bus accesses, so we need the APMIXEDSYS physical address aswell.
>>
>> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
>> ---

[ ... ]

>> +	/*
>> +	 * These calibration values should finally be provided by the
>> +	 * firmware or fuses. For now use default values.
>> +	 */
>> +	mt->calib_slope = -123;
>> +	mt->calib_offset = 465124;
>
> Would it make sense to use the coefficients device tree property to
> describe the sensor slope and offset?

Trim the mail when possible please.


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