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Message-Id: <20260119-iio-ad8366-update-v1-2-8044e23e964a@analog.com>
Date: Mon, 19 Jan 2026 14:36:56 +0000
From: Rodrigo Alencar via B4 Relay <devnull+rodrigo.alencar.analog.com@...nel.org>
To: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
devicetree@...r.kernel.org
Cc: Michael Hennerich <Michael.Hennerich@...log.com>,
Lars-Peter Clausen <lars@...afoo.de>, Jonathan Cameron <jic23@...nel.org>,
David Lechner <dlechner@...libre.com>, Andy Shevchenko <andy@...nel.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Rodrigo Alencar <rodrigo.alencar@...log.com>
Subject: [PATCH 2/7] dt-bindings: iio: amplifiers: Add AD8366 support
From: Rodrigo Alencar <rodrigo.alencar@...log.com>
Add device tree binding documentation for amplifiers and digital
attenuators. This covers different device variants with similar
SPI control.
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@...log.com>
---
.../bindings/iio/amplifiers/adi,ad8366.yaml | 85 ++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 86 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
new file mode 100644
index 000000000000..7477bb9b5071
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/amplifiers/adi,ad8366.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AD8366, similar Gain Amplifiers and Digital Attenuators
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@...log.com>
+ - Rodrigo Alencar <rodrigo.alencar@...log.com>
+
+description: |
+ Digital Variable Gain Amplifiers (VGAs) and Digital Attenuators with
+ SPI interface.
+
+properties:
+ compatible:
+ enum:
+ - adi,ad8366
+ - adi,ada4961
+ - adi,adl5240
+ - adi,adrf5720
+ - adi,adrf5730
+ - adi,adrf5731
+ - adi,hmc271a
+ - adi,hmc792a
+ - adi,hmc1018a
+ - adi,hmc1019a
+ - adi,hmc1119
+
+ reg:
+ maxItems: 1
+
+ vcc-supply:
+ description: Regulator that provides power to the device.
+
+ reset-gpios:
+ maxItems: 1
+ description:
+ GPIO pin used to reset the device.
+
+ enable-gpios:
+ maxItems: 1
+ description:
+ GPIO pin used to enable the device.
+
+required:
+ - compatible
+ - reg
+ - vcc-supply
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ amplifier@0 {
+ compatible = "adi,ad8366";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ vcc-supply = <&vcc_3v3>;
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ attenuator@1 {
+ compatible = "adi,adrf5730";
+ reg = <1>;
+ spi-max-frequency = <1000000>;
+ vcc-supply = <&vcc_3v3>;
+ };
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 9c8e83470464..0bbeea028cc0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1589,6 +1589,7 @@ M: Rodrigo Alencar <rodrigo.alencar@...log.com>
L: linux-iio@...r.kernel.org
S: Supported
W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
F: drivers/iio/amplifiers/ad8366.c
ANALOG DEVICES INC AD9467 DRIVER
--
2.43.0
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