2 files changed, 7 insertions, 1 deletions

diff --git a/arch/arm/mach-pxa/include/mach/pxafb.h b/arch/arm/mach-pxa/include/mach/pxafb.h
index cb44410cd456..4201a889ff4e 100644
--- a/arch/arm/mach-pxa/include/mach/pxafb.h
+++ b/arch/arm/mach-pxa/include/mach/pxafb.h
@@ -95,6 +95,10 @@ struct pxafb_mode_info {
          *    in pxa27x and pxa3xx, initialize them to the same value or
          *    the larger one will be used
          * 3. same to {rd,wr}_pulse_width
+         *
+         * 4. LCD_PCLK_EDGE_{RISE,FALL} controls the L_PCLK_WR polarity
+         * 5. sync & FB_SYNC_HOR_HIGH_ACT controls the L_LCLK_A0
+         * 6. sync & FB_SYNC_VERT_HIGH_ACT controls the L_LCLK_RD
          */
         unsigned        a0csrd_set_hld; /* A0 and CS Setup/Hold Time before/after L_FCLK_RD */
         unsigned        a0cswr_set_hld; /* A0 and CS Setup/Hold Time before/after L_PCLK_WR */
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 62d2dd0c1fa1..d6de84b42036 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -760,7 +760,9 @@ static void setup_smart_timing(struct pxafb_info *fbi,
                 LCCR1_HorSnchWdth(__smart_timing(t3, lclk));
 
         fbi->reg_lccr2 = LCCR2_DisHght(var->yres);
-        fbi->reg_lccr3 = LCCR3_PixClkDiv(__smart_timing(t4, lclk));
+        fbi->reg_lccr3 = fbi->lccr3 | LCCR3_PixClkDiv(__smart_timing(t4, lclk));
+        fbi->reg_lccr3 |= (var->sync & FB_SYNC_HOR_HIGH_ACT) ? LCCR3_HSP : 0;
+        fbi->reg_lccr3 |= (var->sync & FB_SYNC_VERT_HIGH_ACT) ? LCCR3_VSP : 0;
 
         /* FIXME: make this configurable */
         fbi->reg_cmdcr = 1;