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Mon, 22 Jun 2026 12:31:15 -0700 (PDT) From: Kurt Borja Date: Mon, 22 Jun 2026 14:30:45 -0500 Subject: [PATCH RFC v2 1/3] dt-bindings: iio: adc: Add reference-source property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260622-new-channel-props-v2-1-aafd5369f253@gmail.com> References: <20260622-new-channel-props-v2-0-aafd5369f253@gmail.com> In-Reply-To: <20260622-new-channel-props-v2-0-aafd5369f253@gmail.com> To: Jonathan Cameron , Rob Herring , Krzysztof Kozlowski , Conor Dooley , David Lechner Cc: =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kurt Borja X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1254; i=kuurtb@gmail.com; h=from:subject:message-id; bh=+pJ7uCu7ybV5f7cr4+RX+XNp+Kxe/oMYY80h+wFJXws=; b=owGbwMvMwCUmluBs8WX+lTTG02pJDFmWvfWJB/LT6o3aRbRn+9jVXq7wVelaVWus0efl++fMu 2/Gyts7SlkYxLgYZMUUWdoTFn17FJX31u9A6H2YOaxMIEMYuDgFYCJFpQz/vY4KhnbqMe0pNgi+ OlN0baLtd2uhqvteTzc8+a306vxBR4Z/NsmHl3cUL7zg8Lz1oOO/thmP5JZVagSs5N+0qSHk8St vZgA= X-Developer-Key: i=kuurtb@gmail.com; a=openpgp; fpr=54D3BE170AEF777983C3C63B57E3B6585920A69A Some ADCs have configurable voltage reference sources for each channel. Signed-off-by: Kurt Borja --- Documentation/devicetree/bindings/iio/adc/adc.yaml | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml index b9bc02b5b07a4c7..fdad6b8276c934c 100644 --- a/Documentation/devicetree/bindings/iio/adc/adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adc.yaml @@ -73,6 +73,19 @@ properties: device design and can interact with other characteristics such as settling time. + reference-source: + $ref: /schemas/types.yaml#/definitions/string-array + maxItems: 2 + minItems: 1 + description: + Indicates the voltage reference source or sources for this channel. Some + ADCs usually allow choosing between internal reference sources or a pair + of external pins. + + If a single value is provided, it represents a single voltage reference + source. If two values are provided, the first one corresponds to the + positive source and the second to the negative source. + anyOf: - oneOf: - required: -- 2.54.0