[PATCH] Fix rivafb's NV_ARCH_, cleanup DEBUG, backlight control on ppc

- fixes the PCI-IDs (needed to get it to work on at least the NV17)

- cleans up the DEBUG option (similar to the new radeonfb).  This also
  makes it easy to replace printk by btext_printf() (on ppc) or similar to
  ease debugging of the fb code when all else fails.

- adds backlight control for Apple powerbooks
Signed-off-by: Guido Guenther <agx@sigxcpu.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/Kconfig

@@ -446,6 +446,15 @@ config FB_RIVA_I2C
 	  independently validate video mode parameters, you should say Y
 	  here.
 
+config FB_RIVA_DEBUG
+	bool "Lots of debug output from Riva(nVidia) driver"
+	depends on FB_RIVA
+	default n
+	help
+	  Say Y here if you want the Riva driver to output all sorts
+	  of debugging informations to provide to the maintainer when
+	  something goes wrong.
+
 config FB_I810
 	tristate "Intel 810/815 support (EXPERIMENTAL)"
 	depends on FB && AGP && AGP_INTEL && EXPERIMENTAL && PCI