ARM: dts: omap3-beagle: Add omap-twl4030 audio support

This adds typical McBSP2-TWL4030 audio description to the legacy
Beagle Board.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

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

@@ -61,6 +61,14 @@
 		vcc-supply = <&hsusb2_power>;
 	};
 
+	sound {
+		compatible = "ti,omap-twl4030";
+		ti,model = "omap3beagle";
+
+		ti,mcbsp = <&mcbsp2>;
+		ti,codec = <&twl_audio>;
+	};
+
 	gpio_keys {
 		compatible = "gpio-keys";
 
@@ -120,6 +128,12 @@
 		reg = <0x48>;
 		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
 		interrupt-parent = <&intc>;
+
+		twl_audio: audio {
+			compatible = "ti,twl4030-audio";
+			codec {
+			};
+		};
 	};
 };