linux-kernel - [PATCH 0/2] iio: magnetometer: add support for Infineon TLV493D 3D Magnetic Sensor

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Message-Id: <20250726-tlv493d-sensor-v6_16-rc5-v1-0-deac027e6f32@gmail.com>
Date: Sat, 26 Jul 2025 15:07:00 +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 0/2] iio: magnetometer: add support for Infineon TLV493D 3D
 Magnetic Sensor

The Infineon TLV493D is a Low-Power 3D Magnetic Sensor. The Sensor
applications includes joysticks, control elements (white goods,
multifunction knops), or electric meters (anti tampering) and any
other application that requires accurate angular measurements at
low power consumptions.

The Sensor is configured over I2C, and as part of Sensor measurement
data it provides 3-Axis magnetic fields and temperature core measurement.

The driver supports raw value read and buffered input via external trigger
to allow streaming values with the same sensing timestamp.

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.

While sensor has interrupt pin multiplexed with I2C SCL pin. But for bus
configurations interrupt(INT) is not recommended, unless timing constraints
between I2C data transfers and interrupt pulses are monitored and aligned.

The Sensor's I2C register map and mode information is described in product
User Manual[1].

Datasheet: https://www.infineon.com/assets/row/public/documents/24/49/infineon-tlv493d-a1b6-datasheet-en.pdf
[1] https://www.mouser.com/pdfDocs/Infineon-TLV493D-A1B6_3DMagnetic-UserManual-v01_03-EN.pdf

Signed-off-by: Dixit Parmar <dixitparmar19@...il.com>
---
Dixit Parmar (2):
      iio: magnetometer: add support for Infineon TLV493D 3D Magentic sensor
      dt-bindings: iio: magnetometer: document Infineon TLV493D 3D Magnetic sensor

 .../iio/magnetometer/infineon,tlv493d.yaml         |  57 ++
 drivers/iio/magnetometer/Kconfig                   |  14 +
 drivers/iio/magnetometer/Makefile                  |   2 +
 drivers/iio/magnetometer/tlv493d.c                 | 606 +++++++++++++++++++++
 4 files changed, 679 insertions(+)
---
base-commit: d7b8f8e20813f0179d8ef519541a3527e7661d3a
change-id: 20250726-tlv493d-sensor-v6_16-rc5-18c712093b27

Best regards,
-- 
Dixit Parmar <dixitparmar19@...il.com>