linux-kernel - Re: [PATCH 1/4] iio: adc: add support for Berlin

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Date:	Fri, 20 Mar 2015 19:45:35 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Peter Meerwald <pmeerw@...erw.net>,
	Antoine Tenart <antoine.tenart@...e-electrons.com>
CC:	sebastian.hesselbarth@...il.com, jic23@...nel.org, knaack.h@....de,
	zmxu@...vell.com, jszhang@...vell.com, yrliao@...vell.com,
	linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] iio: adc: add support for Berlin

On 03/20/2015 06:43 PM, Peter Meerwald wrote:
> Hello Antoine,
>
>> This patch adds the support of the Berlin ADC, available on Berlin SoCs.
>> This ADC has 8 channels available, with one connected to a temperature
>> sensor.
>>
>> The particularity here, is that the temperature sensor connected to the
>> ADC has its own registers, and both the ADC and the temperature sensor
>> must be configured when using it.
>
> some quick comments inline below;
> sometimes this refers to berlin, sometimes to berlin2?
>
> probably these regmap_read() / _write() pairs could be MACRO()'d away
> somehow

There is regmap_update_bits(), which does the read-modify-update cycle.

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