[PATCH v4 04/11] ep93xx: Use ioremap for backlight driver

Arnd Bergmann arnd at arndb.de
Tue Mar 13 05:52:24 EDT 2012


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 at arndb.de>



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