OMAP: add TI OMAP2 internal display controller support.

- Adds Texas Instruments OMAP2 processor series (OMAP2420/2430) internal
  display controller interface support.
Signed-off-by: Trilok Soni <soni.trilok@gmail.com>
Cc: Tony Lindgren <tony@atomide.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>

drivers/video/omap/Makefile

@@ -7,6 +7,7 @@ obj-$(CONFIG_FB_OMAP) += omapfb.o
 objs-yy := omapfb_main.o
 
 objs-y$(CONFIG_ARCH_OMAP1) += lcdc.o
+objs-y$(CONFIG_ARCH_OMAP2) += dispc.o
 
 omapfb-objs := $(objs-yy)
 

drivers/video/omap/dispc.h

+#ifndef _DISPC_H
+#define _DISPC_H
+
+#include <linux/interrupt.h>
+
+#define DISPC_PLANE_GFX			0
+#define DISPC_PLANE_VID1		1
+#define DISPC_PLANE_VID2		2
+
+#define DISPC_RGB_1_BPP			0x00
+#define DISPC_RGB_2_BPP			0x01
+#define DISPC_RGB_4_BPP			0x02
+#define DISPC_RGB_8_BPP			0x03
+#define DISPC_RGB_12_BPP		0x04
+#define DISPC_RGB_16_BPP		0x06
+#define DISPC_RGB_24_BPP		0x08
+#define DISPC_RGB_24_BPP_UNPACK_32	0x09
+#define DISPC_YUV2_422			0x0a
+#define DISPC_UYVY_422			0x0b
+
+#define DISPC_BURST_4x32		0
+#define DISPC_BURST_8x32		1
+#define DISPC_BURST_16x32		2
+
+#define DISPC_LOAD_CLUT_AND_FRAME	0x00
+#define DISPC_LOAD_CLUT_ONLY		0x01
+#define DISPC_LOAD_FRAME_ONLY		0x02
+#define DISPC_LOAD_CLUT_ONCE_FRAME	0x03
+
+#define DISPC_TFT_DATA_LINES_12		0
+#define DISPC_TFT_DATA_LINES_16		1
+#define DISPC_TFT_DATA_LINES_18		2
+#define DISPC_TFT_DATA_LINES_24		3
+
+extern void omap_dispc_set_lcd_size(int width, int height);
+
+extern void omap_dispc_enable_lcd_out(int enable);
+extern void omap_dispc_enable_digit_out(int enable);
+
+extern int  omap_dispc_request_irq(void (*callback)(void *data), void *data);
+extern void omap_dispc_free_irq(void);
+
+#endif