linux-kernel - [PATCH 2/2] dt-bindings: iio: magnetometer: document Infineon TLV493D 3D Magnetic sensor

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Message-Id: <20250726-tlv493d-sensor-v6_16-rc5-v1-2-deac027e6f32@gmail.com>
Date: Sat, 26 Jul 2025 15:07:02 +0530
From: Dixit Parmar <dixitparmar19@...il.com>
To: 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>
Cc: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org, 
 devicetree@...r.kernel.org, Dixit Parmar <dixitparmar19@...il.com>
Subject: [PATCH 2/2] dt-bindings: iio: magnetometer: document Infineon
 TLV493D 3D Magnetic sensor

Document the bindings for Infineon TLV493D Low-Power 3D Magnetic Sensor
controlled by I2C interface. Main applications includes joysticks, control
elements (white goods, multifunction knops), or electric meters (anti
tampering).

The device can be configured in to different operating modes by optional
device-tree "mode" property. Also, the temperature sensing part requires
raw offset captured at 25°C and that can be specified by "temp-offset"
optional device-tree property.

Datasheet: https://www.infineon.com/assets/row/public/documents/24/49/infineon-tlv493d-a1b6-datasheet-en.pdf

Signed-off-by: Dixit Parmar <dixitparmar19@...il.com>
---
 .../iio/magnetometer/infineon,tlv493d.yaml         | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/magnetometer/infineon,tlv493d.yaml b/Documentation/devicetree/bindings/iio/magnetometer/infineon,tlv493d.yaml
new file mode 100644
index 000000000000..0442cf41503b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/infineon,tlv493d.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/magnetometer/infineon,tlv493d.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Infineon Technologies TLV493D Low-Power 3D Magnetic Sensor
+
+maintainers:
+  - Dixit Parmar <dixitparmar19@...il.com>
+
+properties:
+  $nodename:
+    pattern: '^magnetometer@[0-9a-f]+$'
+
+  compatible:
+    const: infineon,tlv493d-a1b6
+
+  reg:
+    maxItems: 1
+
+  vdd-supply:
+    description: 2.8V to 3.5V supply
+
+  mode:
+    description: Sensor operating mode. Must be one of the defined enum values.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum:
+      - 0 # Power Down Mode. No measurement.
+      - 1 # Fast Mode
+      - 2 # Low-Power Mode
+      - 3 # Ultra Low-Power Mode
+      - 4 # Master Controlled Mode
+    default: 4
+
+  temp-offset:
+    description: Raw temperature offset at 25°C to apply before applying scale and correction.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 340
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+example:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      magnetometer@5e {
+        compatible = "infineon,tlv493d-a1b6";
+        reg = <0x5e>;
+        vdd = <&hall_vcc>;
+      };
+    };

-- 
2.43.0