ARM: dts: overo: Push uart3 pinmux down to expansion board

UART3 is used by expansion boards to get a tty console. Thus, the
pinmux should be defined by expansion boards, instead of being
imposed by the processor board.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-overo-base.dtsi

@@ -96,13 +96,6 @@ OMAP3_CORE1_IOPAD(0x2172, PIN_INPUT | MUX_MODE1)	/* mcbsp3_fsx.uart2_rx */
 		>;
 	};
 
-	uart3_pins: pinmux_uart3_pins {
-		pinctrl-single,pins = <
-			OMAP3_CORE1_IOPAD(0x219e, PIN_INPUT | PIN_OFF_WAKEUPENABLE | MUX_MODE0)	/* uart3_rx_irrx.uart3_rx_irrx */
-			OMAP3_CORE1_IOPAD(0x21a0, PIN_OUTPUT | MUX_MODE0)		/* uart3_tx_irtx.uart3_tx_irtx */
-		>;
-	};
-
 	i2c1_pins: pinmux_i2c1_pins {
 		pinctrl-single,pins = <
 			OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0)		/* i2c1_scl.i2c1_scl */
@@ -226,7 +219,3 @@ &uart2 {
 	pinctrl-0 = <&uart2_pins>;
 };
 
-&uart3 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart3_pins>;
-};

arch/arm/boot/dts/omap3-overo-tobi-common.dtsi

@@ -28,6 +28,13 @@ OMAP3_CORE1_IOPAD(0x21c2, PIN_INPUT | MUX_MODE0)	/* i2c3_scl.i2c3_scl */
 			OMAP3_CORE1_IOPAD(0x21c4, PIN_INPUT | MUX_MODE0)	/* i2c3_sda.i2c3_sda */
 		>;
 	};
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x219e, PIN_INPUT | PIN_OFF_WAKEUPENABLE | MUX_MODE0)	/* uart3_rx_irrx.uart3_rx_irrx */
+			OMAP3_CORE1_IOPAD(0x21a0, PIN_OUTPUT | MUX_MODE0)		/* uart3_tx_irtx.uart3_tx_irtx */
+		>;
+	};
 };
 
 #include "omap-gpmc-smsc9221.dtsi"
@@ -58,3 +65,9 @@ eeprom@51 {
 &mmc3 {
 	status = "disabled";
 };
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins>;
+};
+