DAVINCI FB: added in IOCTL to return FB physical address.

    - thus to expose FB memory to resizer.

	modified:   drivers/video/dm/dm_main.c
	modified:   include/video/davincifb.h

drivers/video/dm/dm_main.c

@@ -1807,6 +1807,13 @@ static int davincifb_ioctl(struct fb_info *info, unsigned int cmd,
 		dm_cbtest_enable(w->dm, enable);
 		return 0;
 		break;
+
+	case FBIO_GET_PHYS_ADDRESS:
+		if (copy_to_user(argp, &w->fb_base_phys, sizeof(unsigned long)))
+		{
+			return -EFAULT;
+		}
+		return 0;
 	}
 
 	return -EINVAL;

include/video/davincifb.h

@@ -488,4 +488,5 @@ struct dmfb_transparency
 #define FBIO_TRANSP 		_IOW('F', 0x27, struct dmfb_transparency)
 #define FBIO_TRANSP_COLOR	_IOW('F', 0x28, u_int32_t)
 #define FBIO_CBTEST		_IOW('F', 0x29, u_int32_t)
+#define FBIO_GET_PHYS_ADDRESS _IOWR('F', 0x2A, unsigned long)
 #endif /* _DAVINCIFB_H_ */