[PATCH] fbdev: Fix reversed back and front porches

In fbdev perspective, the frontporch is the lower/right margin and the
backporch is the upper/left margin.

Correct.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/fbcvt.c

@@ -272,11 +272,11 @@ static void fb_cvt_convert_to_mode(struct fb_cvt_data *cvt,
 {
 	mode->refresh = cvt->f_refresh;
 	mode->pixclock = KHZ2PICOS(cvt->pixclock/1000);
-	mode->left_margin = cvt->h_front_porch;
-	mode->right_margin = cvt->h_back_porch;
+	mode->left_margin = cvt->h_back_porch;
+	mode->right_margin = cvt->h_front_porch;
 	mode->hsync_len = cvt->hsync;
-	mode->upper_margin = cvt->v_front_porch;
-	mode->lower_margin = cvt->v_back_porch;
+	mode->upper_margin = cvt->v_back_porch;
+	mode->lower_margin = cvt->v_front_porch;
 	mode->vsync_len = cvt->vsync;
 
 	mode->sync &= ~(FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT);