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Mon, 27 Apr 2026 02:23:37 -0400 From: Alexis Czezar Torreno Date: Mon, 27 Apr 2026 14:23:16 +0800 Subject: [PATCH v9 1/2] dt-bindings: iio: dac: Add ADI AD5706R Precedence: bulk X-Mailing-List: devicetree@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: <20260427-dev_ad5706r-v9-1-a8e4cae499d7@analog.com> References: <20260427-dev_ad5706r-v9-0-a8e4cae499d7@analog.com> In-Reply-To: <20260427-dev_ad5706r-v9-0-a8e4cae499d7@analog.com> To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , "David Lechner" , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , Alexis Czezar Torreno , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1777271003; l=4978; i=alexisczezar.torreno@analog.com; s=20250213; h=from:subject:message-id; bh=vyDntxC0pb5yQ2Tiq9+7uYt7LfP7Wnia+i9RAceOr4E=; b=lLowT82485jzGCJ2icKV1ux+wMgAj3YN8LaBNkxIizRRfCgiuHWHgaKHmWf0z3gTmXCeAWpEo eG6yi8uPVokAQgxCAQmUms41WhdlIoBHUHd1yQVjMFqXJb4iN0gx5mo X-Developer-Key: i=alexisczezar.torreno@analog.com; 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Reviewed-by: Krzysztof Kozlowski Signed-off-by: Alexis Czezar Torreno --- Changes in v5: - Changed out-en-gpios to enable-gpios. Changes in v4: - Reverted pwm and gpio entries - Added missing power supply properties - Clocks not added back as they were driver specific Changes in v3: - Added allOf and ref to spi-peripheral-props.yaml - Changed additionalProperties to unevaluatedProperties - Added avdd-supply property and added it to required Changes in v1: - Removed clocks, clock-names, pwms, pwm-names, gpio properties - Simplified example to use plain SPI bus --- --- .../devicetree/bindings/iio/dac/adi,ad5706r.yaml | 105 +++++++++++++++++++++ MAINTAINERS | 7 ++ 2 files changed, 112 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5706r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5706r.yaml new file mode 100644 index 0000000000000000000000000000000000000000..19cc744a9f0fc35907de8b8bdd9f088676620b54 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5706r.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5706r.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5706R 4-Channel Current Output DAC + +maintainers: + - Alexis Czezar Torreno + +description: | + The AD5706R is a 4-channel, 16-bit resolution, current output + digital-to-analog converter (DAC) with programmable output current + ranges (50mA, 150mA, 200mA, 300mA), an integrated 2.5V voltage + reference, and load DAC, A/B toggle, and dither functions. + + Datasheet: + https://www.analog.com/en/products/ad5706r.html + +properties: + compatible: + enum: + - adi,ad5706r + + reg: + maxItems: 1 + + avdd-supply: + description: Analog power supply (2.9V to 3.6V). + + iovdd-supply: + description: Logic power supply (1.14V to 1.89V). + + pvdd0-supply: + description: Power supply for IDAC0 channel (1.65V to AVDD). + + pvdd1-supply: + description: Power supply for IDAC1 channel (1.65V to AVDD). + + pvdd2-supply: + description: Power supply for IDAC2 channel (1.65V to AVDD). + + pvdd3-supply: + description: Power supply for IDAC3 channel (1.65V to AVDD). + + vref-supply: + description: + Optional external 2.5V voltage reference. If not provided, the + internal 2.5V reference is used. + + pwms: + maxItems: 1 + description: + Optional PWM connected to the LDAC/TGP/DCK pin for hardware + triggered DAC updates, toggle, or dither clock generation. + + reset-gpios: + maxItems: 1 + description: + GPIO connected to the active low RESET pin. If not provided, + software reset is used. + + enable-gpios: + maxItems: 1 + description: + GPIO connected to the active low OUT_EN pin. Controls whether + the current outputs are enabled or in high-Z/ground state. + +required: + - compatible + - reg + - avdd-supply + - iovdd-supply + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "adi,ad5706r"; + reg = <0>; + avdd-supply = <&avdd>; + iovdd-supply = <&iovdd>; + pvdd0-supply = <&pvdd>; + pvdd1-supply = <&pvdd>; + pvdd2-supply = <&pvdd>; + pvdd3-supply = <&pvdd>; + vref-supply = <&vref>; + spi-max-frequency = <50000000>; + pwms = <&pwm0 0 1000000 0>; + reset-gpios = <&gpio0 10 GPIO_ACTIVE_LOW>; + enable-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 1251965d70bdfa990c66966cd77f7ab52ae3385f..17a3d2d45fccb9cd3c93fd35666fb85d17d53cde 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1496,6 +1496,13 @@ W: https://ez.analog.com/linux-software-drivers F: Documentation/devicetree/bindings/iio/adc/adi,ad4851.yaml F: drivers/iio/adc/ad4851.c +ANALOG DEVICES INC AD5706R DRIVER +M: Alexis Czezar Torreno +L: linux-iio@vger.kernel.org +S: Supported +W: https://ez.analog.com/linux-software-drivers +F: Documentation/devicetree/bindings/iio/dac/adi,ad5706r.yaml + ANALOG DEVICES INC AD7091R DRIVER M: Marcelo Schmitt L: linux-iio@vger.kernel.org -- 2.34.1