From: Linus Walleij <linus.walleij@linaro.org>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Sebastien Bourdelin" <sebastien.bourdelin@savoirfairelinux.com>
Cc: "Sascha Hauer" <kernel@pengutronix.de>,
kernel <kernel@savoirfairelinux.com>,
"Linux ARM" <linux-arm-kernel@lists.infradead.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Jérôme OUFELLA" <jerome.oufella@savoirfairelinux.com>
Subject: Re: [PATCH] bus: ts-nbus: remove bus driver without user
Date: Fri, 11 Jan 2019 13:52:36 +0100 [thread overview]
Message-ID: <CACRpkdbYizVLtQxh8_ZXWC-d6+E-k0T6Zq67qRJ7ascFGWTXig@mail.gmail.com> (raw)
In-Reply-To: <20190107194523.2772-1-u.kleine-koenig@pengutronix.de>
On Mon, Jan 7, 2019 at 8:46 PM Uwe Kleine-König
<u.kleine-koenig@pengutronix.de> wrote:
> Since the ts-nbus driver was introduced in 2017 it only saw some reworking
> changes. There is no user in the tree, neither a machine that has this
> bus nor a driver for a device on that bus. Also the email address of the
> author doesn't exist any more.
>
> So remove this bus.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Sebastien added this bus and I was under the impression that he was
using it, even if no config or DTS in the kernel seems to be using it.
IIRC it should land in this one:
arch/arm/boot/dts/imx28-ts4600.dts
This was added over a year ago and not much happened since.
Sebastien what happened with this?
(I hope his mail is not bouncing...)
This interestingly brings up the following question: we used to just
grep the kernel for users of a certain driver, which will find e.g. board
files even if there is currently no defconfig for the system.
With device tree drivers these DTS files defining the use of the
driver can be out-of-tree, sometimes (SunOS?) in the ROM of a
machine, and not possible to check using grep.
We need some policy there, like preferably merge device trees
upstream and add defconfigs so we have some indication that
the driver is used and also get compiled in tests.
Yours,
Linus Walleij
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next prev parent reply other threads:[~2019-01-11 12:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-07 19:45 [PATCH] bus: ts-nbus: remove bus driver without user Uwe Kleine-König
2019-01-11 12:52 ` Linus Walleij [this message]
2019-01-11 15:04 ` Uwe Kleine-König
2019-01-11 19:56 ` Linus Walleij
2019-12-10 17:15 ` Uwe Kleine-König
2019-12-10 21:19 ` Linus Walleij
2019-12-10 21:27 ` Uwe Kleine-König
2019-12-10 23:08 ` Linus Walleij
2019-12-11 7:11 ` Uwe Kleine-König
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