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Message-ID: <81edbe7d-d6a7-4df0-b27d-8f542e56450c@baylibre.com> Date: Sat, 22 Feb 2025 10:48:54 -0600 From: David Lechner <dlechner@...libre.com> To: Marcelo Schmitt <marcelo.schmitt@...log.com>, linux-iio@...r.kernel.org, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org Cc: jic23@...nel.org, lars@...afoo.de, corbet@....net, marcelo.schmitt1@...il.com Subject: Re: [PATCH v4 1/1] Documentation: iio: Add ADC documentation On 2/19/25 3:00 PM, Marcelo Schmitt wrote: > ADC inputs can be classified into a few different types according to how > they measure the input signal, how restrained the signal is, and number of > input pins. Even though datasheets tend to provide many details about their > inputs and measurement procedures, it may not always be clear how to model > those inputs into IIO channels. > > For example, some differential ADCs can have their inputs configured into > pseudo-differential channels. In that configuration, only one input > connects to the signal of interest as opposed to using two inputs of a > differential input configuration. Datasheets sometimes also refer to > pseudo-differential inputs as single-ended inputs even though they have > distinct physical configuration and measurement procedure. > > Document consolidated ADC input types and how they are usually described > and supported in device tree and IIO, respectively. > > Signed-off-by: Marcelo Schmitt <marcelo.schmitt@...log.com> > --- Reviewed-by: David Lechner <dlechner@...libre.com>
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