linux-kernel - Re: [PATCH 2/8] iio: adc: ad7476: Simplify scale handling

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Message-ID: <305bd41d-8281-4207-9ff2-5b749a105056@gmail.com>
Date: Thu, 7 Aug 2025 08:43:10 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...el.com>
Cc: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
 Lars-Peter Clausen <lars@...afoo.de>,
 Michael Hennerich <Michael.Hennerich@...log.com>,
 Jonathan Cameron <jic23@...nel.org>, David Lechner <dlechner@...libre.com>,
 Nuno Sá <nuno.sa@...log.com>,
 Andy Shevchenko <andy@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Liam Girdwood <lgirdwood@...il.com>,
 Mark Brown <broonie@...nel.org>, linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/8] iio: adc: ad7476: Simplify scale handling

On 06/08/2025 23:21, Andy Shevchenko wrote:
> On Wed, Aug 06, 2025 at 10:03:07AM +0300, Matti Vaittinen wrote:
>> The ad7476 driver supports variants with different amount of supply
>> regulators. On some variants there is only VCC, which is used as a
>> reference voltage. Others have separate VREF regulator, and some rely on
>> internal VREF. Some have both internal VREF and option to connect
>> external one.
>>
>> The ad7476 driver reads the regulator voltage only when the user asks to
>> get the scale. This means the driver needs to do some dancing while
>> picking the correct reference regulator (or internal reference), and
>> store it for the later use.
> 
>> According to the discussion:
>> https://lore.kernel.org/linux-iio/20250331122247.05c6b09d@jic23-huawei/
> 
> This may be made a Link tag
> 
> According to the discussion [1] ...
> ...
> Link: $URL #1

Thanks for the clear example. Will do.

Yours,
	-- Matti