mbp_nvidia_bl: remove DMI dependency
authorMatthew Garrett <mjg@redhat.com>
Tue, 22 Mar 2011 23:30:26 +0000 (16:30 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 23 Mar 2011 00:44:00 +0000 (17:44 -0700)
commit23a9847f0d5252872c4fecb5d4f803c523bd9283
treec85e4580d76007cfe486804e88c71b3ec2e074ab
parent9661e92c10a9775243c1ecb73373528ed8725a10
mbp_nvidia_bl: remove DMI dependency

This driver only has to deal with two different classes of hardware, but
right now it needs new DMI entries for every new machine. It turns out
that there's an ACPI device that uniquely identifies Apples with backlights,
so this patch reworks the driver into an ACPI one, identifies the hardware
by checking the PCI vendor of the root bridge and strips out all the DMI
code. It also changes the config text to clarify that it works on devices
other than Macbook Pros and GPUs other than nvidia.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: Mourad De Clerck <mourad@aquazul.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/video/backlight/Kconfig
drivers/video/backlight/Makefile
drivers/video/backlight/mbp_nvidia_bl.c