From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A18D019D8A8; Sun, 16 Nov 2025 16:10:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763309432; cv=none; b=WbTlCbS281RlQkmMc5bUwmL0ce+jIBM9p1dapK7HQhukIxTDvxek7DLdfI8qHc8PwrXycYLdPn6soXxk9r+5ubni+M6Cz+HkA6KM/JYFh8s2V3jr/Tm/QnqTE1k2lnqYZ7I0MbeQb9/8dvxyNhTSFmLuR09VA7YYQFmhyXhutZc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763309432; c=relaxed/simple; bh=zlADVKGYtLKdaZN2C+6k7dyzgFpOTlp3zF7I0SqUksg=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=SQzXgVjkhACJYyrQ0pbCahFOF8U9yxbKWTDO31UPgTswAJOupPcGQxGw2U2WovmTPnm+ZmoT0Vojvd0rjaKADtc3g9BI63kwy7G8DI/PLV+txXBSupmqrVj3BBKFFqmhKfSqopBlu+eqdFx7PhdYTIBgCxAVns3HlEJzzqtFKJ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mbOcgCD2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mbOcgCD2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63D05C4CEF5; Sun, 16 Nov 2025 16:10:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763309431; bh=zlADVKGYtLKdaZN2C+6k7dyzgFpOTlp3zF7I0SqUksg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=mbOcgCD2eKGFlZbKJhp2UXOO5OUOvjCoVYim4/fdmyvmnWo2z9S5+EUiGlcCqDNTr xCtYNT9yfNPLTZNufz3FGZocmBy8BU6DSfjXi5NJfY5bDPEHUvpC5EUCubroyL7xmZ BdWNQb4LnW7c02Muj5q4fQr/M/3kC1/ZwC0gzybgJ5Anr4txyJ8IwrluAZ+W2FntVT WMQinzdV5Z20CvWwuvHHmWjTmsh1zAPn2tWhGtb/CtWNZDSW3+QPH6OMoZcd0GLChS HiqZXFK93D61XtbibwOu/qDN0PS148wvH8Vcygpdh/QzAuaHfgpNorKi6oT62BfxbX KyRMtYR5viOSg== Date: Sun, 16 Nov 2025 16:10:23 +0000 From: Jonathan Cameron To: Rodrigo Alencar via B4 Relay Cc: rodrigo.alencar@analog.com, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, David Lechner , Andy Shevchenko , Lars-Peter Clausen , Michael Hennerich , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet Subject: Re: [PATCH 0/3] ADF41513/ADF41510 PLL frequency synthesizers Message-ID: <20251116161023.7a4b1b6e@jic23-huawei> In-Reply-To: <20251110-adf41513-iio-driver-v1-0-2df8be0fdc6e@analog.com> References: <20251110-adf41513-iio-driver-v1-0-2df8be0fdc6e@analog.com> X-Mailer: Claws Mail 4.3.1 (GTK 3.24.51; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 10 Nov 2025 15:44:43 +0000 Rodrigo Alencar via B4 Relay wrote: > 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. Both devices feature exceptional phase noise > performance and flexible frequency synthesis capabilities. > > Key features supported by this driver: > - Integer-N and fractional-N operation modes > - Ultra-low phase noise (-235 dBc/Hz integer-N, -231 dBc/Hz fractional-N) > - High maximum PFD frequency (250 MHz integer-N, 125 MHz fractional-N) > - 25-bit fixed modulus or 49-bit variable modulus fractional modes > - Programmable charge pump currents with 16x range > - Digital lock detect functionality > - Phase resync capability for consistent output phase > - Clock framework integration for system clock generation > > The series includes: > 1. Core driver implementation with full register programming support > 2. Device tree bindings documentation > 3. IIO subsystem documentation with usage examples > > The driver integrates with both the IIO subsystem (for direct hardware control) > and the Linux clock framework (for use as a system clock source), providing > flexibility for different use cases. For v2, provide a little more info on why we need both interface types specifically what you can do with IIO that you can't do with a clock driver. Also +CC the clk driver folk and list from MAINTAINERS. We have evolved to this dual interface state drivers, but I'm not sure we aren't in a case 'If we were doing this again we'd never start from here.' Jonathan > > Signed-off-by: Rodrigo Alencar > --- > Rodrigo Alencar (3): > iio: frequency: adf41513: driver implementation > dt-bindings: iio: frequency: add adf41513 > docs: iio: add documentation for adf41513 driver > > .../bindings/iio/frequency/adi,adf41513.yaml | 268 ++++ > Documentation/iio/adf41513.rst | 377 +++++ > Documentation/iio/index.rst | 1 + > MAINTAINERS | 9 + > drivers/iio/frequency/Kconfig | 11 + > drivers/iio/frequency/Makefile | 1 + > drivers/iio/frequency/adf41513.c | 1435 ++++++++++++++++++++ > 7 files changed, 2102 insertions(+) > --- > base-commit: d16d1c2553248f9b859b86c94344d8b81f0297cd > change-id: 20251110-adf41513-iio-driver-aaca8a7f808e > > Best regards,