linux-kernel - [PATCH 0/3] iio: proximity: Add DT and interrupt support for RFD77402

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Message-ID: <20251126031440.30065-1-raskar.shree97@gmail.com>
Date: Wed, 26 Nov 2025 08:44:37 +0530
From: Shrikant Raskar <raskar.shree97@...il.com>
To: jic23@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: dlechner@...libre.com,
	nuno.sa@...log.com,
	andy@...nel.org,
	heiko@...ech.de,
	neil.armstrong@...aro.org,
	skhan@...uxfoundation.org,
	david.hunter.linux@...il.com,
	linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Shrikant Raskar <raskar.shree97@...il.com>
Subject: [PATCH 0/3] iio: proximity: Add DT and interrupt support for RFD77402

This patch series adds:
 - Add RF Digital vendor prefix
 - YAML binding for RFD77402
 - Device Tree support in the driver
 - Interrupt handling support
 
These changes enable DT-based configuration and event-driven
operation for the RFD77402 Time-of-Flight sensor.

These changes are tested on RPi 3B.
1. Interrupt Mode logs:
pi@...pberrypi:~$ dmesg | grep rfd
[   26.907482] rfd77402 1-004c: Using interrupt mode 
pi@...pberrypi:~$ cat /sys/bus/iio/devices/iio:device0/in_distance_raw
51
1. Polling Mode logs:
pi@...pberrypi:~$ dmesg | grep rfd
[   26.760403] rfd77402 1-004c: No interrupt specified, using polling mode
pi@...pberrypi:~$ cat /sys/bus/iio/devices/iio:device0/in_distance_raw
1990

Shrikant Raskar (3):
  dt-bindings: iio: proximity: Add YAML binding for RFD77402 ToF sensor
  iio: proximity: rfd77402: Add Device Tree support
  iio: proximity: rfd77402: Add interrupt handling support

 .../iio/proximity/rfdigital,rfd77402.yaml     |  55 +++++++
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 drivers/iio/proximity/rfd77402.c              | 134 +++++++++++++++---
 3 files changed, 171 insertions(+), 20 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/iio/proximity/rfdigital,rfd77402.yaml

-- 
2.43.0