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([2600:8803:e7e4:1d00:55b7:b662:4c5b:a28e]) by smtp.gmail.com with ESMTPSA id 5614622812f47-43d5c6bcb8asm1132156b6e.8.2025.09.18.12.32.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 18 Sep 2025 12:32:24 -0700 (PDT) Message-ID: <280f7145-8800-4f50-b316-3a604150a980@baylibre.com> Date: Thu, 18 Sep 2025 14:32:23 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/8] iio: adc: ad4030: Fix _scale value for common-mode channels To: Marcelo Schmitt , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-spi@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: Content-Language: en-US From: David Lechner In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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 > --- Reviewed-by: David Lechner