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([2600:8803:e7e4:500:74a6:843b:f33:21ae]) by smtp.gmail.com with ESMTPSA id 5614622812f47-462feb5455dsm3550699b6e.17.2026.02.07.10.35.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 07 Feb 2026 10:35:29 -0800 (PST) Message-ID: Date: Sat, 7 Feb 2026 12:35:28 -0600 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 8/8] iio: adc: ad4030: Support common-mode channels with SPI offloading To: Marcelo Schmitt , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: jic23@kernel.org, michael.hennerich@analog.com, nuno.sa@analog.com, eblanc@baylibre.com, andy@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, corbet@lwn.net, marcelo.schmitt1@gmail.com References: <1f05069e25e9ea28db2cef9fa3856456be3c2614.1770403407.git.marcelo.schmitt@analog.com> Content-Language: en-US From: David Lechner In-Reply-To: <1f05069e25e9ea28db2cef9fa3856456be3c2614.1770403407.git.marcelo.schmitt@analog.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2/6/26 1:02 PM, Marcelo Schmitt wrote: > AD4030 and similar devices can read common-mode voltage together with > ADC sample data. When enabled, common-mode voltage data is provided in a > separate IIO channel since it measures something other than the primary > ADC input signal and requires separate scaling to convert to voltage > units. The initial SPI offload support patch for AD4030 only provided > differential channels. Now, extend the AD4030 driver to also provide > common-mode IIO channels when setup with SPI offloading capability. > > Signed-off-by: Marcelo Schmitt > --- Reviewed-by: David Lechner