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Tue, 10 Mar 2026 10:48:44 -0700 (PDT) From: Taha Ed-Dafili <0rayn.dev@gmail.com> To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org, skhan@linuxfoundation.org, me@brighamcampbell.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Taha Ed-Dafili <0rayn.dev@gmail.com>, Krzysztof Kozlowski Subject: [PATCH v2 1/5] dt-bindings: iio: dac: ad5504: add output-range and missing gpios Date: Tue, 10 Mar 2026 17:48:31 +0000 Message-ID: <20260310174835.24209-2-0rayn.dev@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260310174835.24209-1-0rayn.dev@gmail.com> References: <20260310174835.24209-1-0rayn.dev@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The AD5504 output range (0-30V or 0-60V) is determined by the R_SEL pin. Use standard output-range-microvolt and range-sel-gpios properties to describe the hardware configuration of the R_SEL pin. Ensure mutual exclusivity using the not/required logic. Additionally, add missing vlogic-supply, clear-gpios, ldac-gpios and datasheet links, and provide a complete usage example. Suggested-by: David Lechner Suggested-by: Krzysztof Kozlowski Signed-off-by: Taha Ed-Dafili <0rayn.dev@gmail.com> --- .../bindings/iio/dac/adi,ad5504.yaml | 40 ++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml index 9c2c038683b4..c0b2d470949a 100644 --- a/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml @@ -10,8 +10,10 @@ maintainers: - Lars-Peter Clausen - Jonathan Cameron -description: +description: | High voltage (up to 60V) DACs with temperature sensor alarm function + https://www.analog.com/media/en/technical-documentation/data-sheets/ad5504.pdf + https://www.analog.com/media/en/technical-documentation/data-sheets/ad5501.pdf properties: compatible: @@ -27,16 +29,48 @@ properties: maxItems: 1 vcc-supply: true + vlogic-supply: true + + output-range-microvolt: + description: | + Specify the channel output full scale range. The R_SEL pin + determines if the range is 0-30V or 0-60V. + items: + - const: 0 + - enum: [30000000, 60000000] + default: [0, 60000000] + + range-sel-gpios: + description: + GPIO connected to the R_SEL pin to select the output voltage range. + maxItems: 1 + + clear-gpios: + description: GPIO that controls the /CLR pin (active low). + maxItems: 1 + + ldac-gpios: + description: GPIO that controls the /LDAC pin (active low). + maxItems: 1 additionalProperties: false required: - compatible - reg + - vcc-supply + +allOf: + - not: + required: + - range-sel-gpios + - output-range-microvolt examples: - | #include + #include + spi { #address-cells = <1>; #size-cells = <0>; @@ -45,6 +79,10 @@ examples: compatible = "adi,ad5504"; vcc-supply = <&dac_vcc>; interrupts = <55 IRQ_TYPE_EDGE_FALLING>; + + output-range-microvolt = <0 60000000>; + clear-gpios = <&gpio 4 GPIO_ACTIVE_LOW>; + ldac-gpios = <&gpio 5 GPIO_ACTIVE_LOW>; }; }; ... -- 2.47.3