ARM: dts: omap3-gta04: Add basic sound support

This adds basic sound support for gta04 board.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-gta04.dts

@@ -36,6 +36,14 @@ aux-button {
 			gpio-key,wakeup;
 		};
 	};
+
+	sound {
+		compatible = "ti,omap-twl4030";
+		ti,model = "gta04";
+
+		ti,mcbsp = <&mcbsp2>;
+		ti,codec = <&twl_audio>;
+	};
 };
 
 &omap3_pmx_core {
@@ -80,6 +88,12 @@ twl: twl@48 {
 		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
 		interrupt-parent = <&intc>;
 	};
+
+	twl_audio: audio {
+		compatible = "ti,twl4030-audio";
+		codec {
+		};
+	};
 };
 
 #include "twl4030.dtsi"