linux-kernel - Re: [PATCH 00/43] ep93xx device tree conversion

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Message-Id: <c3db2294-4fef-46be-a62a-11fc38884918@app.fastmail.com>
Date:   Tue, 25 Apr 2023 14:27:26 +0100
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org>,
        "Jakub Kicinski" <kuba@...nel.org>
Cc:     "Nikita Shubin" <nikita.shubin@...uefel.me>,
        "Arnd Bergmann" <arnd@...nel.org>,
        "Linus Walleij" <linusw@...nel.org>,
        "Alexander Sverdlin" <alexander.sverdlin@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jonathan Neuschäfer <j.neuschaefer@....net>,
        "Russell King" <rmk+kernel@...linux.org.uk>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        "Alessandro Zummo" <a.zummo@...ertech.it>,
        "Alexander Gordeev" <agordeev@...ux.ibm.com>,
        "Alexandre Belloni" <alexandre.belloni@...tlin.com>,
        "Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>,
        "Bartosz Golaszewski" <brgl@...ev.pl>,
        "Brian Norris" <briannorris@...omium.org>,
        "Chuanhong Guo" <gch981213@...il.com>,
        "Conor.Dooley" <conor.dooley@...rochip.com>,
        "Damien Le Moal" <dlemoal@...nel.org>,
        "Daniel Lezcano" <daniel.lezcano@...aro.org>,
        "Dmitry Torokhov" <dmitry.torokhov@...il.com>,
        "Emil Renner Berthing" <kernel@...il.dk>,
        "Eric Dumazet" <edumazet@...gle.com>,
        "Florian Fainelli" <f.fainelli@...il.com>,
        "Guenter Roeck" <linux@...ck-us.net>,
        "Hartley Sweeten" <hsweeten@...ionengravers.com>,
        Heiko Stübner <heiko@...ech.de>,
        "Hitomi Hasegawa" <hasegawa-hitomi@...itsu.com>,
        "Jaroslav Kysela" <perex@...ex.cz>,
        "Jean Delvare" <jdelvare@...e.de>, "Joel Stanley" <joel@....id.au>,
        "Jonathan Cameron" <Jonathan.Cameron@...wei.com>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        "Damien Le Moal" <damien.lemoal@...nsource.wdc.com>,
        "Liam Girdwood" <lgirdwood@...il.com>,
        "Liang Yang" <liang.yang@...ogic.com>,
        "Linus Walleij" <linus.walleij@...aro.org>,
        "Lukasz Majewski" <lukma@...x.de>, "Lv Ruyi" <lv.ruyi@....com.cn>,
        "Mark Brown" <broonie@...nel.org>,
        "Masahiro Yamada" <masahiroy@...nel.org>,
        "Michael Turquette" <mturquette@...libre.com>,
        "Miquel Raynal" <miquel.raynal@...tlin.com>,
        "Nathan Chancellor" <nathan@...nel.org>,
        "Nick Desaulniers" <ndesaulniers@...gle.com>,
        "Nicolas Saenz Julienne" <nsaenz@...nel.org>,
        "Olof Johansson" <olof@...om.net>,
        "Paolo Abeni" <pabeni@...hat.com>,
        "Qin Jian" <qinjian@...lus1.com>,
        "Richard Weinberger" <richard@....at>,
        "Rob Herring" <robh+dt@...nel.org>,
        "Robert Jarzmik" <robert.jarzmik@...e.fr>,
        "Russell King" <linux@...linux.org.uk>,
        "Sebastian Reichel" <sre@...nel.org>,
        "Sergey Shtylyov" <s.shtylyov@....ru>,
        "Stephen Boyd" <sboyd@...nel.org>,
        "Sumanth Korikkar" <sumanthk@...ux.ibm.com>,
        "Sven Peter" <sven@...npeter.dev>, "Takashi Iwai" <tiwai@...e.com>,
        "Thierry Reding" <thierry.reding@...il.com>,
        "Thomas Gleixner" <tglx@...utronix.de>,
        "Ulf Hansson" <ulf.hansson@...aro.org>,
        "Vasily Gorbik" <gor@...ux.ibm.com>,
        "Vignesh Raghavendra" <vigneshr@...com>,
        "Vinod Koul" <vkoul@...nel.org>,
        "Walker Chen" <walker.chen@...rfivetech.com>,
        "Wim Van Sebroeck" <wim@...ux-watchdog.org>,
        "Yinbo Zhu" <zhuyinbo@...ngson.cn>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-ide@...r.kernel.org, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-pm@...r.kernel.org, linux-pwm@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-watchdog@...r.kernel.org, Netdev <netdev@...r.kernel.org>,
        soc@...nel.org
Subject: Re: [PATCH 00/43] ep93xx device tree conversion

On Tue, Apr 25, 2023, at 10:20, Krzysztof Kozlowski wrote:
> On 25/04/2023 00:29, Jakub Kicinski wrote:
>> On Mon, 24 Apr 2023 13:31:25 +0200 Arnd Bergmann wrote:
>>> Thanks a lot for your continued work. I can't merge any of this at
>>> the moment since the upstream merge window just opened, but I'm
>>> happy to take this all through the soc tree for 6.5, provided we
>>> get the sufficient Acks from the subsystem maintainers. Merging
>>> it through each individual tree would take a lot longer, so I
>>> hope we can avoid that.
>> 
>> Is there a dependency between the patches?
>
> I didn't get entire patchset and cover letter does not mention
> dependencies, but usually there shouldn't be such. Maybe for the next
> versions this should be split per subsystem?

Clearly the last patch that removes the board files depends on
all the previous patches, but I assume that the other ones
are all independent.

We don't do complete conversions from boardfiles to DT that often
any more, but in the past we tended to do this through a cross-
subsystem branch in the soc tree, which helps do it more quickly
and is less work for Nikita. In this case, I would make it a
separate top-level branch in the soc tree.

If anyone strongly feels that the patches should go through
the subsystem trees here, we'll take the longer path and
do the changes separately, with the boardfile removal
coming a release later.

     Arnd