I have to send one critical mxsfb fix through arm-soc, as FB maintainer

is unresponsive for quite a while.  People start complaining the missing
 of such an important fix.
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Merge tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo:
I have to send one critical mxsfb fix through arm-soc, as FB maintainer
is unresponsive for quite a while.  People start complaining the missing
of such an important fix.

* tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6:
  video: mxsfb: fix crash when unblanking the display
  ARM: dts: imx23-olinuxino: Fix IOMUX settings

arch/arm/boot/dts/imx23-olinuxino.dts

@@ -39,17 +39,17 @@
 				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2013 /* MX23_PAD_SSP1_DETECT__GPIO_2_1 */
+						0x0113 /* MX23_PAD_GPMI_ALE__GPIO_0_17 */
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
 					fsl,pull-up = <0>;
 				};
 
-				led_pin_gpio0_17: led_gpio0_17@0 {
+				led_pin_gpio2_1: led_gpio2_1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0113 /* MX23_PAD_GPMI_ALE__GPIO_0_17 */
+						0x2013 /* MX23_PAD_SSP1_DETECT__GPIO_2_1 */
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -110,7 +110,7 @@
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
-		pinctrl-0 = <&led_pin_gpio0_17>;
+		pinctrl-0 = <&led_pin_gpio2_1>;
 
 		user {
 			label = "green";

drivers/video/mxsfb.c

@@ -369,7 +369,8 @@ static void mxsfb_disable_controller(struct fb_info *fb_info)
 		loop--;
 	}
 
-	writel(VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4 + REG_CLR);
+	reg = readl(host->base + LCDC_VDCTRL4);
+	writel(reg & ~VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4);
 
 	clk_disable_unprepare(host->clk);