Add device tree bindings for ADG1736, a dual SPDT switch that
functions as two independent 2:1 multiplexers. Each switch can
connect its drain terminal to one of two source terminals (A or B).

The device provides two mux controllers controlled by individual
GPIO pins, with a shared enable pin for disabling all switches.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
---
changes in v2:
 * rename ctrl-gpios to mux-gpios
 * rename en-gpios to enable-gpios
 * use items format for mux-gpios description
 * simplify property descriptions
---
 .../devicetree/bindings/mux/adi,adg1736.yaml  | 75 +++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mux/adi,adg1736.yaml

diff --git a/Documentation/devicetree/bindings/mux/adi,adg1736.yaml b/Documentation/devicetree/bindings/mux/adi,adg1736.yaml
new file mode 100644
index 000000000000..cef4bca3cb97
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/adi,adg1736.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mux/adi,adg1736.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADG1736 Dual SPDT Switch Multiplexer
+
+maintainers:
+  - Antoniu Miclaus <antoniu.miclaus@analog.com>
+
+description: |
+  Analog Devices ADG1736 dual single-pole, double-throw (SPDT)
+  switch. The device features two independent SPDT switches, each functioning
+  as a 2:1 multiplexer. Each switch can connect its common drain terminal (D)
+  to one of two source terminals (SA or SB).
+
+  The device has two independent mux controllers (mux 0 and mux 1), each with
+  two states:
+    * 0: SxB to Dx (control GPIO low)
+    * 1: SxA to Dx (control GPIO high)
+
+  The EN pin is shared between both switches and can disable all channels when
+  set low (inactive).
+
+allOf:
+  - $ref: mux-controller.yaml#
+
+properties:
+  compatible:
+    const: adi,adg1736
+
+  mux-gpios:
+    description:
+      GPIO pins connected to the control inputs IN1 and IN2.
+    items:
+      - description: Control GPIO for switch 1 (S1A/S1B to D1)
+      - description: Control GPIO for switch 2 (S2A/S2B to D2)
+
+  enable-gpios:
+    description:
+      GPIO connected to the EN (enable) pin. Active high.
+    maxItems: 1
+
+  '#mux-control-cells':
+    const: 1
+    description:
+      Mux controller index (0 or 1) to select which SPDT switch to control.
+
+required:
+  - compatible
+  - mux-gpios
+  - enable-gpios
+  - '#mux-control-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/mux/mux.h>
+
+    mux-controller {
+        compatible = "adi,adg1736";
+        #mux-control-cells = <1>;
+
+        mux-gpios = <&gpio 10 GPIO_ACTIVE_HIGH>,
+                    <&gpio 11 GPIO_ACTIVE_HIGH>;
+        enable-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+
+        /* Disconnect both switches when idle */
+        idle-states = <MUX_IDLE_DISCONNECT MUX_IDLE_DISCONNECT>;
+    };
+
+...
-- 
2.43.0

On Mon, 05 Jan 2026 13:57:56 +0200, Antoniu Miclaus wrote:
> Add device tree bindings for ADG1736, a dual SPDT switch that
> functions as two independent 2:1 multiplexers. Each switch can
> connect its drain terminal to one of two source terminals (A or B).
> 
> The device provides two mux controllers controlled by individual
> GPIO pins, with a shared enable pin for disabling all switches.
> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
> ---
> changes in v2:
>  * rename ctrl-gpios to mux-gpios
>  * rename en-gpios to enable-gpios
>  * use items format for mux-gpios description
>  * simplify property descriptions
> ---
>  .../devicetree/bindings/mux/adi,adg1736.yaml  | 75 +++++++++++++++++++
>  1 file changed, 75 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mux/adi,adg1736.yaml
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>