From: Arnd Bergmann <arnd@arndb.de>
To: Steven King <sfking@fdwdc.com>
Cc: Greg Ungerer <gerg@uclinux.org>,
Linus Walleij <linus.walleij@linaro.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Alex Courbot <acourbot@nvidia.com>,
Grant Likely <grant.likely@secretlab.ca>,
Guenter Roeck <linux@roeck-us.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-arch <linux-arch@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>
Subject: Re: [PATCH 0/4] gpio: introduce descriptor-based interface
Date: Thu, 17 Jan 2013 19:22:13 +0000 [thread overview]
Message-ID: <201301171922.13432.arnd@arndb.de> (raw)
In-Reply-To: <201301170850.43655.sfking@fdwdc.com>
On Thursday 17 January 2013, Steven King wrote:
> I haven't been keeping up with the kernel list of late, can someone point me
> to what''s being discussed so I can see what were talking about here?
We are discussion about changes to the GPIO API, in particular about
adding a descriptor (i.e. pointer to struct) based interface to
replace integers as the primary key.
Any kind of change on this level is currently problematic because it
is basically impossible to tell which files are implementing the
current interface and would need to get changed along with changing
gpiolib. If everything goes through gpiolib, it's much easier
to make compatible extensions in one place.
Do you have any numbers about how much of a difference for your
platforms we are talking about at most?
Arnd
next prev parent reply other threads:[~2013-01-17 19:22 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-08 7:18 [PATCH 0/4] gpio: introduce descriptor-based interface Alexandre Courbot
2013-01-08 7:18 ` [PATCH 1/4] gpiolib: introduce descriptor-based GPIO interface Alexandre Courbot
2013-01-08 7:18 ` Alexandre Courbot
2013-01-08 12:59 ` Arnd Bergmann
2013-01-09 1:06 ` Alexandre Courbot
2013-01-09 10:25 ` Russell King - ARM Linux
2013-01-09 10:35 ` Arnd Bergmann
2013-01-09 10:44 ` Russell King - ARM Linux
2013-01-09 11:10 ` Russell King - ARM Linux
[not found] ` <20130109111055.GG3931-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2013-01-09 11:52 ` Arnd Bergmann
2013-01-09 11:52 ` Arnd Bergmann
2013-01-09 14:44 ` Nicolas Pitre
2013-01-09 15:04 ` [PATCH] Proposed removal of IS_ERR_OR_NULL() (was: Re: [PATCH 1/4] gpiolib: introduce descriptor-based GPIO interface) Russell King - ARM Linux
[not found] ` <20130109150427.GL3931-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2013-01-09 15:21 ` Grant Likely
2013-01-09 15:21 ` Grant Likely
2013-01-09 15:26 ` Arnd Bergmann
2013-01-09 15:27 ` Nicolas Pitre
2013-01-09 15:27 ` Nicolas Pitre
2013-01-09 15:51 ` Russell King - ARM Linux
2013-01-09 16:09 ` Nicolas Pitre
2013-01-09 16:21 ` Russell King - ARM Linux
2013-01-09 17:12 ` Russell King - ARM Linux
2013-01-09 17:52 ` Tony Lindgren
2013-01-17 10:28 ` Linus Walleij
2013-01-10 8:36 ` [PATCH 1/4] gpiolib: introduce descriptor-based GPIO interface Thierry Reding
2013-01-10 8:36 ` Thierry Reding
2013-01-08 7:18 ` [PATCH 2/4] gpiolib: add gpiod_get and gpiod_put functions Alexandre Courbot
2013-01-08 7:18 ` Alexandre Courbot
2013-01-08 13:07 ` Arnd Bergmann
2013-01-09 1:49 ` Alexandre Courbot
2013-01-08 7:18 ` [PATCH 3/4] gpiolib: of: convert OF helpers to descriptor API Alexandre Courbot
2013-01-08 7:18 ` Alexandre Courbot
2013-01-08 7:18 ` [PATCH 4/4] gpiolib: add documentation for new gpiod_ API Alexandre Courbot
2013-01-08 7:18 ` Alexandre Courbot
2013-01-08 13:06 ` [PATCH 0/4] gpio: introduce descriptor-based interface Arnd Bergmann
2013-01-08 13:06 ` Arnd Bergmann
2013-01-09 1:48 ` Alexandre Courbot
2013-01-09 10:46 ` Arnd Bergmann
2013-01-10 4:07 ` Alex Courbot
2013-01-10 10:08 ` Arnd Bergmann
2013-01-14 10:21 ` Alex Courbot
2013-01-14 10:46 ` Arnd Bergmann
2013-01-14 10:46 ` Arnd Bergmann
2013-01-17 11:15 ` Linus Walleij
2013-01-17 11:15 ` Linus Walleij
2013-01-17 12:02 ` Greg Ungerer
2013-01-17 16:50 ` Steven King
2013-01-17 16:50 ` Steven King
2013-01-17 19:22 ` Arnd Bergmann [this message]
2013-01-20 6:07 ` Alex Courbot
2013-01-22 8:55 ` Linus Walleij
2013-01-22 8:55 ` Linus Walleij
2013-01-17 11:25 ` Linus Walleij
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