ARM: dts: omap3-gta04a5: add support for PPS

GPS receiver provides a 1PPS signal to a gpio.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-gta04a5.dts

@@ -14,4 +14,22 @@ / {
 	sound {
 		ti,jack-det-gpio = <&twl_gpio 2 GPIO_ACTIVE_HIGH>;	/* GTA04A5 only */
 	};
+
+	pps {
+		compatible = "pps-gpio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pps_pins>;
+
+		gpios = <&gpio4 18 GPIO_ACTIVE_HIGH>; /* GPIN_114 */
+	};
+
+};
+
+&omap3_pmx_core {
+	pps_pins: pinmux_pps_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT | MUX_MODE4) /* gpin114 */
+		>;
+	};
+
 };