linux-kernel - [PATCH v2 0/6] ADF41513/ADF41510 PLL frequency synthesizers

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Message-Id: <20251219-adf41513-iio-driver-v2-0-be29a83d5793@analog.com>
Date: Fri, 19 Dec 2025 12:34:47 +0000
From: Rodrigo Alencar via B4 Relay <devnull+rodrigo.alencar.analog.com@...nel.org>
To: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-doc@...r.kernel.org
Cc: Jonathan Cameron <jic23@...nel.org>, 
 David Lechner <dlechner@...libre.com>, Andy Shevchenko <andy@...nel.org>, 
 Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Jonathan Corbet <corbet@....net>, 
 Rodrigo Alencar <rodrigo.alencar@...log.com>
Subject: [PATCH v2 0/6] ADF41513/ADF41510 PLL frequency synthesizers

This patch series adds support for the Analog Devices ADF41513 and ADF41510
ultralow noise PLL frequency synthesizers. These devices are designed for
implementing local oscillators (LOs) in high-frequency applications.
The ADF41513 covers frequencies from 1 GHz to 26.5 GHz, while the ADF41510
operates from 1 GHz to 10 GHz.

Key features supported by this driver:
- Integer-N and fractional-N operation modes
- High maximum PFD frequency (250 MHz integer-N, 125 MHz fractional-N)
- 25-bit fixed modulus or 49-bit variable modulus fractional modes
- Digital lock detect functionality
- Phase resync capability for consistent output phase
- Load Enable vs Reference signal syncronization

The series includes:
1. PLL driver implementation
2. Device tree bindings documentation
3. IIO ABI documentation

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@...log.com>
---
Changes in v2:
- separate driver implementation from extra features and improve commit messages
- use macros from units.h
- explanation of custom parse function: adf41513_parse_uhz
- reorganize driver data structures
- drop clock framework support for now
- reorganize documentation
- Link to v1: https://lore.kernel.org/r/20251110-adf41513-iio-driver-v1-0-2df8be0fdc6e@analog.com

---
Rodrigo Alencar (6):
      dt-bindings: iio: frequency: add adf41513
      iio: frequency: adf41513: driver implementation
      iio: frequency: adf41513: handle LE synchronization feature
      iio: frequency: adf41513: features on frequency change
      docs: iio: add documentation for adf41513 driver
      Documentation: ABI: testing: add support for ADF41513

 .../ABI/testing/sysfs-bus-iio-frequency-adf41513   |   27 +
 .../bindings/iio/frequency/adi,adf41513.yaml       |  246 ++++
 Documentation/iio/adf41513.rst                     |  255 ++++
 Documentation/iio/index.rst                        |    1 +
 MAINTAINERS                                        |   10 +
 drivers/iio/frequency/Kconfig                      |   10 +
 drivers/iio/frequency/Makefile                     |    1 +
 drivers/iio/frequency/adf41513.c                   | 1378 ++++++++++++++++++++
 8 files changed, 1928 insertions(+)
---
base-commit: a7b10f0963c651a6406d958a5f64b9c5594f84da
change-id: 20251110-adf41513-iio-driver-aaca8a7f808e

Best regards,
-- 
Rodrigo Alencar <rodrigo.alencar@...log.com>