ARM: mxs: dts: Add gpio-keys for the rotary to the CFA-10049

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28-cfa10049.dts

@@ -45,6 +45,7 @@ hog_pins_cfa10049_pullup: hog-10049-pullup@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
 						0x2133 /* MX28_PAD_SSP2_D3__GPIO_2_19 */
+						0x31a3 /* MX28_PAD_SAIF_SDATA0__GPIO_3_26 */
 						0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */
 					>;
 					fsl,drive-strength = <0>;
@@ -276,6 +277,19 @@ dac0: dh2228@2 {
 		};
 	};
 
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		rotary_button {
+			label = "rotary_button";
+			gpios = <&gpio3 26 1>;
+			debounce-interval = <10>;
+			linux,code = <28>;
+		};
+	};
+
 	backlight {
 		compatible = "pwm-backlight";
 		pwms = <&pwm 3 5000000>;