Intel FB: support for interlaced video modes

Intel framebuffer now supports interlaced video modes.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/intelfb/intelfbhw.h b/drivers/video/intelfb/intelfbhw.h
index 8c54ba8..cfcd537 100644
--- a/drivers/video/intelfb/intelfbhw.h
+++ b/drivers/video/intelfb/intelfbhw.h
@@ -286,6 +286,10 @@
 #define PIPECONF_UNLOCKED		0
 #define PIPECONF_GAMMA			(1 << 24)
 #define PIPECONF_PALETTE		0
+#define PIPECONF_PROGRESSIVE			(0 << 21)
+#define PIPECONF_INTERLACE_W_FIELD_INDICATION	(6 << 21)
+#define PIPECONF_INTERLACE_FIELD_0_ONLY		(7 << 21)
+#define PIPECONF_INTERLACE_MASK			(7 << 21)
 
 #define DISPARB			0x70030
 #define DISPARB_AEND_MASK		0x1ff