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([2600:8803:e7e4:1d00:4489:d382:ca90:f531]) by smtp.gmail.com with ESMTPSA id 5614622812f47-4033dae382fsm685964b6e.21.2025.05.02.11.54.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 May 2025 11:54:38 -0700 (PDT) Message-ID: <8ff3f1da-f868-4c7e-9123-00a3c54904d5@baylibre.com> Date: Fri, 2 May 2025 13:54:37 -0500 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 4/5] dt-bindings: iio: adc: adi,ad7606: add gain calibration support To: Angelo Dureghello , Jonathan Cameron , =?UTF-8?Q?Nuno_S=C3=A1?= , Andy Shevchenko , Lars-Peter Clausen , Michael Hennerich , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20250502-wip-bl-ad7606-calibration-v2-0-174bd0af081b@baylibre.com> <20250502-wip-bl-ad7606-calibration-v2-4-174bd0af081b@baylibre.com> From: David Lechner Content-Language: en-US In-Reply-To: <20250502-wip-bl-ad7606-calibration-v2-4-174bd0af081b@baylibre.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 5/2/25 8:27 AM, Angelo Dureghello wrote: > From: Angelo Dureghello > > Add gain calibration support by a per-channel resistor value. > > Signed-off-by: Angelo Dureghello > --- > .../devicetree/bindings/iio/adc/adi,ad7606.yaml | 29 ++++++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml > index 29f12d650442b8ff2eb455306ce59a0e87867ddd..d4b8ea51f60be367e79a4db18d932cbca9c7dc91 100644 > --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml > +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml > @@ -204,6 +204,15 @@ patternProperties: > considered a bipolar differential channel. Otherwise it is bipolar > single-ended. > > + adi,rfilter-ohms: > + description: > + For ADCs that supports gain calibration, this property must be set to > + the value of the external RFilter resistor. Proper gain error > + correction is applied based on this value. > + default: 0 > + minimum: 0 > + maximum: 65536 > + Max should be 64512.