[PATCH] atyfb: Fix CRTC_FIFO_LWM mask

CRTC_FIFO_LWM was incorrectly masked.
Signed-off-by: NVille Syrjälä <syrjala@sci.fi>
Signed-off-by: NAntonino Daplas <adaplas@pol.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/video/aty/atyfb_base.c

@@ -1077,9 +1077,8 @@ static int aty_var_to_crtc(const struct fb_info *info,
 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
 
 	if (M64_HAS(MAGIC_FIFO)) {
-		/* Not VTB/GTB */
-		/* FIXME: magic FIFO values */
-		crtc->gen_cntl |= (aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC2_PIX_WIDTH);
+		/* FIXME: display FIFO low watermark values */
+		crtc->gen_cntl |= (aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_FIFO_LWM);
 	}
 	crtc->dp_pix_width = dp_pix_width;
 	crtc->dp_chain_mask = dp_chain_mask;