From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 04/11] ep93xx: Use ioremap for backlight driver
Date: Tue, 13 Mar 2012 09:52:24 +0000 [thread overview]
Message-ID: <201203130952.24401.arnd@arndb.de> (raw)
In-Reply-To: <1331592502-9083-5-git-send-email-rmallon@gmail.com>
On Monday 12 March 2012, Ryan Mallon wrote:
> The ep93xx backlight driver uses a single register within the
> framebuffer's register space. Currently the backlight driver uses a
> static IO mapping for the register since the memory cannot be
> requested by both drivers.
>
> Convert the static mapping to use ioremap so that we can remove the
> dependency on mach/hardware.h. To do so, we need remove the
> request_mem_region from both the backlight and framebuffer drivers,
> since whichever driver is loaded second will fail with -EBUSY
> otherwise.
>
> A proper fix is still required, and a FIXME comment has been added to
> both drivers.
Acked-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2012-03-13 9:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-12 22:48 [PATCH v4 04/11] ep93xx: Use ioremap for backlight driver Ryan Mallon
2012-03-13 5:45 ` Mika Westerberg
2012-03-13 9:52 ` Arnd Bergmann [this message]
2012-03-13 16:49 ` H Hartley Sweeten
2012-03-13 17:15 ` H Hartley Sweeten
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