linux-kernel - Re: [PATCH v2 1/8] iio: adc: ad4030: Fix

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Message-ID: <280f7145-8800-4f50-b316-3a604150a980@baylibre.com>
Date: Thu, 18 Sep 2025 14:32:23 -0500
From: David Lechner <dlechner@...libre.com>
To: Marcelo Schmitt <marcelo.schmitt@...log.com>, linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
 linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: jic23@...nel.org, michael.hennerich@...log.com, nuno.sa@...log.com,
 eblanc@...libre.com, andy@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, corbet@....net, marcelo.schmitt1@...il.com
Subject: Re: [PATCH v2 1/8] iio: adc: ad4030: Fix _scale value for common-mode
 channels

On 9/18/25 12:37 PM, Marcelo Schmitt wrote:
> Previously, the driver always used the amount of precision bits of
> differential input channels to provide the scale to mV. Though,
> differential and common-mode voltage channels have different amount of
> precision bits and the correct number of precision bits must be considered
> to get to a proper mV scale factor for each one. Use channel specific
> number of precision bits to provide the correct scale value for each
> channel.
> 
> Fixes: de67f28abe58 ("iio: adc: ad4030: check scan_type for error")
> Fixes: 949abd1ca5a4 ("iio: adc: ad4030: add averaging support")
> Signed-off-by: Marcelo Schmitt <marcelo.schmitt@...log.com>
> ---
Reviewed-by: David Lechner <dlechner@...libre.com>