linux-kernel - [PATCH 1/7] dt-bindings: iio: adc: Add adi,ad4062

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Message-ID: <20251013-staging-ad4062-v1-1-0f8ce7fef50c@analog.com>
Date: Mon, 13 Oct 2025 09:27:59 +0200
From: Jorge Marques <jorge.marques@...log.com>
To: Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich
	<Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        "David
 Lechner" <dlechner@...libre.com>,
        Nuno Sá
	<nuno.sa@...log.com>,
        Andy Shevchenko <andy@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>, Jonathan Corbet <corbet@....net>
CC: <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        Jorge Marques
	<jorge.marques@...log.com>
Subject: [PATCH 1/7] dt-bindings: iio: adc: Add adi,ad4062

Add dt-bindings for AD4062 family, devices AD4060/AD4062, low-power with
monitor capabilities SAR ADCs. Each variant of the family differs in
granuality. The device contains two outputs (gp0, gp1). The outputs can
be configured for range of options, such as threshold and data ready.
The device uses a 2-wire I3C interface.

Signed-off-by: Jorge Marques <jorge.marques@...log.com>
---
 .../devicetree/bindings/iio/adc/adi,ad4062.yaml    | 83 ++++++++++++++++++++++
 MAINTAINERS                                        |  6 ++
 2 files changed, 89 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad4062.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad4062.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..dcf86088fc4f32de7ad681561a09bad2755af04c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad4062.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2024 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad4062.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD4062 ADC family device driver
+
+maintainers:
+  - Jorge Marques <jorge.marques@...log.com>
+
+description: |
+  Analog Devices AD4062 Single Channel Precision SAR ADC family
+
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ad4060.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ad4062.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,ad4060
+      - adi,ad4062
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    maxItems: 2
+
+  interrupt-names:
+    items:
+      - const: gp0
+        description: Signal coming from the GP0 pin.
+      - const: gp1
+        description: Signal coming from the GP1 pin.
+
+  vdd-supply:
+    description: Analog power supply.
+
+  vio-supply:
+    description: Digital interface logic power supply.
+
+  ref-supply:
+    description: |
+      Reference voltage to set the ADC full-scale range. If not present,
+      vdd-supply is used as the reference voltage.
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+  - vio-supply
+
+allOf:
+  - $ref: /schemas/i3c/i3c.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i3c {
+        #address-cells = <3>;
+        #size-cells = <0>;
+
+        ad4062: adc@0,2ee007c0000 {
+            reg = <0x0 0x2ee 0x7c0000>;
+            vdd-supply = <&vdd>;
+            vio-supply = <&vio>;
+            ref-supply = <&ref>;
+
+            gp1-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
+            gp0-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+            interrupt-parent = <&gpio>;
+            interrupts = <0 0 IRQ_TYPE_EDGE_RISING>,
+                         <0 1 IRQ_TYPE_EDGE_FALLING>;
+            interrupt-names = "gp0", "gp1";
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index f090c2f6e63a0d255a025885cc4573f5802ef159..afbfaeba5387b9fbfa9bf1443a059c47dd596d45 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1400,6 +1400,12 @@ F:	Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml
 F:	Documentation/iio/ad4030.rst
 F:	drivers/iio/adc/ad4030.c
 
+ANALOG DEVICES INC AD4062 DRIVER
+M:	Jorge Marques <jorge.marques@...log.com>
+S:	Supported
+W:	https://ez.analog.com/linux-software-drivers
+F:	Documentation/devicetree/bindings/iio/adc/adi,ad4062.yaml
+
 ANALOG DEVICES INC AD4080 DRIVER
 M:	Antoniu Miclaus <antoniu.miclaus@...log.com>
 L:	linux-iio@...r.kernel.org

-- 
2.49.0