atafb: Register Atari-specific video modes with sysfs

Register the Atari-specific video modes with sysfs, so you can see them in
/sys/class/graphics/fb0/modes and change the video mode by writing to
/sys/class/graphics/fb0/mode.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/atafb.c

@@ -3230,6 +3230,9 @@ int __init atafb_init(void)
 		return -EINVAL;
 	}
 
+	fb_videomode_to_modelist(atafb_modedb, NUM_TOTAL_MODES,
+				 &fb_info.modelist);
+
 	atafb_set_disp(&fb_info);
 
 	fb_alloc_cmap(&(fb_info.cmap), 1 << fb_info.var.bits_per_pixel, 0);