linux-kernel - [PATCH v2 1/3] dt-bindings: iio: amplifiers: add adl8113

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Message-ID: <20251108174357.3748-2-antoniu.miclaus@analog.com>
Date: Sat, 8 Nov 2025 17:43:52 +0000
From: Antoniu Miclaus <antoniu.miclaus@...log.com>
To: <jic23@...nel.org>, <robh@...nel.org>, <conor+dt@...nel.org>,
        <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC: Antoniu Miclaus <antoniu.miclaus@...log.com>
Subject: [PATCH v2 1/3] dt-bindings: iio: amplifiers: add adl8113

Add devicetree bindings for adl8113.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
---

Changes in v2:
- Enhance External Bypass A mode description: clarify signal routing from RFIN to OUT_A and from IN_A to RFOUT
- Enhance External Bypass B mode description: clarify signal routing from RFIN to OUT_B and from IN_B to RFOUT
- Remove adi,initial-mode property and its description, enum values, and example usage
- Simplify device tree example by removing adi,initial-mode = <0> parameter
 .../bindings/iio/amplifiers/adi,adl8113.yaml  | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml

diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml
new file mode 100644
index 000000000000..cf8dd6e8b887
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/amplifiers/adi,adl8113.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADL8113 Low Noise Amplifier with integrated bypass switches
+
+maintainers:
+  - Antoniu Miclaus <antoniu.miclaus@...log.com>
+
+description: |
+  The ADL8113 is a 10MHz to 12GHz Low Noise Amplifier with integrated bypass
+  switches controlled by two GPIO pins (VA and VB). The device supports four
+  operation modes:
+    - Internal Amplifier: VA=0, VB=0 - Signal passes through the internal LNA
+    - Internal Bypass: VA=1, VB=1 - Signal bypasses through internal path
+    - External Bypass A: VA=0, VB=1 - Signal routes from RFIN to OUT_A and from IN_A to RFOUT
+    - External Bypass B: VA=1, VB=0 - Signal routes from RFIN to OUT_B and from IN_B to RFOUT
+
+    https://www.analog.com/en/products/adl8113.html
+
+properties:
+  compatible:
+    const: adi,adl8113
+
+  vdd1-supply: true
+
+  vdd2-supply: true
+
+  vss2-supply: true
+
+  va-gpios:
+    description:
+      GPIO connected to the VA control pin. Must be specified as GPIO_ACTIVE_HIGH.
+    maxItems: 1
+
+  vb-gpios:
+    description:
+      GPIO connected to the VB control pin. Must be specified as GPIO_ACTIVE_HIGH.
+    maxItems: 1
+
+
+required:
+  - compatible
+  - va-gpios
+  - vb-gpios
+  - vdd1-supply
+  - vdd2-supply
+  - vss2-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    amplifier {
+        compatible = "adi,adl8113";
+        va-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
+        vb-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
+        vdd1-supply = <&vdd1_5v>;
+        vdd2-supply = <&vdd2_3v3>;
+        vss2-supply = <&vss2_neg>;
+    };
+...
-- 
2.43.0