linux-kernel - Re: [PATCH v10 00/18] Support spread spectrum clocking for i.MX8M PLLs

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Message-ID: <CABGWkvq2X9L6P39K5OeQW4+c2OmSYGHN03mUW-96U5okO1CK5A@mail.gmail.com>
Date: Fri, 11 Apr 2025 10:38:17 +0200
From: Dario Binacchi <dario.binacchi@...rulasolutions.com>
To: Peng Fan <peng.fan@....nxp.com>, Stephen Boyd <sboyd@...nel.org>, 
	Abel Vesa <abelvesa@...nel.org>
Cc: linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>, 
	linux-amarula@...rulasolutions.com, Conor Dooley <conor+dt@...nel.org>, 
	Dan Carpenter <dan.carpenter@...aro.org>, Fabio Estevam <festevam@...il.com>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Michael Turquette <mturquette@...libre.com>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, Rob Herring <robh@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org, 
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-clk@...r.kernel.org
Subject: Re: [PATCH v10 00/18] Support spread spectrum clocking for i.MX8M PLLs

On Fri, Mar 14, 2025 at 9:27 AM Peng Fan <peng.fan@....nxp.com> wrote:
>
> On Thu, Mar 06, 2025 at 12:27:49PM +0100, Dario Binacchi wrote:
> >This version keeps the version v9 patches that can be merged and
> >removes the patches that will need to be modified in case Peng's
> >PR https://github.com/devicetree-org/dt-schema/pull/154 is accepted.
> >The idea is to speed up the merging of the patches in the series
> >that have already been reviewed and are not dependent on the
> >introduction of the assigned-clocks-sscs property, and postpone
> >the patches for spread spectrum to a future series once it becomes
> >clear what needs to be done.
> >
> Although I give R-b, there is an idea just come out in my mind that this
> might break OS distribution that use firmware(e.g. U-Boot) to publish
> device tree for Linux Kernel, such as ARM System-Ready complaint OS.
> I overlooked this point in previous patchset reviewing.
>
> Since this patchset is to move anatop stuff to a new driver to reflect
> the HW truth.  And requires new entries in CCM node, so old bootloader
> with new kernel will not boot for OS distribution, such as Fedora/openSuse.
>
> Not sure how to keep backwards support as before. Leave to maintainers
> to say if they are ok with this.

Many thanks to Peng for the review, and a gentle ping to the maintainers.
This series has been ongoing for a few months and has reached version 10,
thanks to the reviews from Krzysztof and Peng.
I kindly ask you to consider it as well.

Thanks and regards,
Dario

>
> Regards,
> Peng



-- 

Dario Binacchi

Senior Embedded Linux Developer

dario.binacchi@...rulasolutions.com

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