fbdev: defio and Metronomefb

Implement support for the E-Ink Metronome controller.  It provides an mmapable
interface to the controller using defio support.  It was tested with a gumstix
pxa255 with Vizplex media using Xfbdev and various X clients such as xeyes,
xpdf, xloadimage.

This patch also fixes the following bug: Defio would cause a hang on write
access to the framebuffer as the page fault would be called ad-infinitum.  It
fixes fb_defio by setting the mapping to be used by page_mkclean.

Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 03371c789039..11c0e5e05f21 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -103,6 +103,7 @@ obj-$(CONFIG_FB_PMAG_AA)	  += pmag-aa-fb.o
 obj-$(CONFIG_FB_PMAG_BA)          += pmag-ba-fb.o
 obj-$(CONFIG_FB_PMAGB_B)          += pmagb-b-fb.o
 obj-$(CONFIG_FB_MAXINE)           += maxinefb.o
+obj-$(CONFIG_FB_METRONOME)        += metronomefb.o
 obj-$(CONFIG_FB_S1D13XXX)         += s1d13xxxfb.o
 obj-$(CONFIG_FB_IMX)              += imxfb.o
 obj-$(CONFIG_FB_S3C2410)          += s3c2410fb.o