From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Lee Jones <lee@kernel.org>,
mfd@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Arnd Bergmann <arnd@arndb.de>,
Daniel Thompson <danielt@kernel.org>,
Jingoo Han <jingoohan1@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Guenter Roeck <linux@roeck-us.net>,
Linus Walleij <linusw@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>,
Jonathan Cameron <jic23@kernel.org>,
Pavel Machek <pavel@kernel.org>,
Michael Hennerich <michael.hennerich@analog.com>,
Support Opensource <support.opensource@diasemi.com>,
Sebastian Reichel <sre@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Helge Deller <deller@gmx.de>,
dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-hwmon@vger.kernel.org, patches@opensource.cirrus.com,
linux-watchdog@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-iio@vger.kernel.org, linux-input@vger.kernel.org,
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llvm@lists.linux.dev
Subject: Re: [PATCH 00/14] mfd: unused driver purge
Date: Wed, 9 Sep 2026 10:26:55 -0700 [thread overview]
Message-ID: <aqGWjAuGXq_JHvxk@google.com> (raw)
In-Reply-To: <20260909132153.1596191-1-arnd@kernel.org>
On Wed, Sep 09, 2026 at 03:21:37PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> As part of my cleanup of old platforms, I had a look at all drivers that
> may have become unused because the last platform_data or DT definition
> was removed, or because of unmet Kconfig dependencies.
>
> These are all the mfd drivers I found. The first ten in the list
> actually turned out to have been unusable long before my series, and
> I have added explanations on how I determined this in each patch. The
> last four patches are still in use in linux-7.3 but become unused after
> my series [1] that I hope to get merged for 7.4.
>
> Somewhat unorthodox, I took a shortcut here and remove both the mfd drivers
> and the corresponding subsystem drivers (gpio, hwmon, iio, input, led,
> media, power, regulator, rtc, video, watchdog, asoc) in a combined patch,
> to simplify the interdependencies: removing just the mfd driver would
> leave unselectable or broken drivers in other subsystems. I also have
> additional patches for each of the other subsystems, currently a total
> of 300 patches, many of which still need better testing or proper
> changelog texts.
>
> Please let me know if you all think this approach is ok, or if I should
> explode this further and turn these 14 patches into 70 individual ones
> by splitting them per subsystem.
Sounds good to me, especially if Lee makes an immutable branch from this
pull so we can all pull it in...
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # for input
Thanks.
--
Dmitry
prev parent reply other threads:[~2026-09-09 17:27 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-09 13:21 [PATCH 00/14] mfd: unused driver purge Arnd Bergmann
2026-09-09 13:21 ` [PATCH 01/14] mfd: remove unused 88pm80x driver Arnd Bergmann
2026-09-09 13:37 ` sashiko-bot
2026-09-09 13:44 ` Alexandre Belloni
2026-09-11 7:24 ` Krzysztof Kozlowski
2026-09-09 13:21 ` [PATCH 02/14] mfd: remove unused rdc321x southbridge support Arnd Bergmann
2026-09-09 13:39 ` sashiko-bot
2026-09-09 20:28 ` Arnd Bergmann
2026-09-09 14:09 ` Guenter Roeck
2026-09-09 13:21 ` [PATCH 03/14] mfd: remove unused si476x driver Arnd Bergmann
2026-09-09 13:38 ` sashiko-bot
2026-09-09 13:21 ` [PATCH 04/14] mfd: remove unused wm8400 driver Arnd Bergmann
2026-09-09 13:27 ` Mark Brown
2026-09-09 13:33 ` sashiko-bot
2026-09-09 14:38 ` Charles Keepax
2026-09-09 13:21 ` [PATCH 05/14] mfd: remove unused adp5520 driver Arnd Bergmann
2026-09-09 13:37 ` sashiko-bot
2026-09-09 20:21 ` Arnd Bergmann
2026-09-09 13:21 ` [PATCH 06/14] mfd: remove unused da903x driver Arnd Bergmann
2026-09-09 13:39 ` sashiko-bot
2026-09-09 20:17 ` Arnd Bergmann
2026-09-09 15:46 ` Sebastian Reichel
2026-09-09 13:21 ` [PATCH 07/14] mfd: remove unused lp8788 driver Arnd Bergmann
2026-09-09 13:39 ` sashiko-bot
2026-09-09 20:14 ` Arnd Bergmann
2026-09-09 13:47 ` Alexandre Belloni
2026-09-09 15:46 ` Sebastian Reichel
2026-09-09 13:21 ` [PATCH 08/14] mfd: remove unused aat2870 driver Arnd Bergmann
2026-09-09 13:30 ` sashiko-bot
2026-09-09 13:21 ` [PATCH 09/14] mfd: remove unused lm3533 driver Arnd Bergmann
2026-09-09 13:35 ` sashiko-bot
2026-09-09 13:44 ` Johan Hovold
2026-09-09 14:47 ` Arnd Bergmann
2026-09-09 13:21 ` [PATCH 10/14] mfd: remove unused rc5t583 driver Arnd Bergmann
2026-09-09 13:39 ` sashiko-bot
2026-09-09 20:49 ` Arnd Bergmann
2026-09-09 13:48 ` Alexandre Belloni
2026-09-09 13:21 ` [PATCH 11/14] mfd: remove unused wm8350 driver Arnd Bergmann
2026-09-09 13:26 ` Mark Brown
2026-09-09 13:41 ` sashiko-bot
2026-09-09 14:12 ` Guenter Roeck
2026-09-09 14:39 ` Charles Keepax
2026-09-09 15:47 ` Sebastian Reichel
2026-09-09 13:21 ` [PATCH 12/14] mfd: remove unused mcp-sa11x0/ucb1x00 driver Arnd Bergmann
2026-09-09 13:48 ` sashiko-bot
2026-09-09 20:53 ` Arnd Bergmann
2026-09-09 13:21 ` [PATCH 13/14] mfd: remove unused menelaus driver Arnd Bergmann
2026-09-09 13:49 ` sashiko-bot
2026-09-09 20:46 ` Arnd Bergmann
2026-09-09 13:51 ` Alexandre Belloni
2026-09-09 13:21 ` [PATCH 14/14] mfd: remove unused iPaq micro driver Arnd Bergmann
2026-09-09 13:43 ` sashiko-bot
2026-09-09 20:58 ` Arnd Bergmann
2026-09-09 14:03 ` [PATCH 00/14] mfd: unused driver purge Bartosz Golaszewski
2026-09-09 17:26 ` Dmitry Torokhov [this message]
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