ARM: dts: omap4-l4-abe: Add McASP configuration

OMAP4 has a single McASP instance with single serializer and locked for DIT
mode.
To be able to enable the support the following fixes needed:
- Add the DAT port ranges to the target module's ranges

We can already fill in the op-mode and serial-dir  for McASP as it only
supports this configuration, but keep the module disabled as there is no
known device available where it is used.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap4-l4-abe.dtsi

@@ -186,6 +186,7 @@ mcbsp3: mcbsp@0 {
 		};
 
 		target-module@28000 {			/* 0x40128000, ap 8 08.0 */
+							/* 0x4012a000, ap 10 0a.0 */
 			compatible = "ti,sysc-mcasp", "ti,sysc";
 			reg = <0x28000 0x4>,
 			      <0x28004 0x4>;
@@ -199,23 +200,25 @@ target-module@28000 {			/* 0x40128000, ap 8 08.0 */
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0x0 0x28000 0x1000>,
-				 <0x49028000 0x49028000 0x1000>;
-
-			/*
-			 * Child device unsupported by davinci-mcasp. At least
-			 * RX path is disabled for omap4, and only DIT mode
-			 * works with no I2S. See also old Android kernel
-			 * omap-mcasp driver for more information.
-			 */
-		};
-
-		target-module@2a000 {			/* 0x4012a000, ap 10 0a.0 */
-			compatible = "ti,sysc";
-			status = "disabled";
-			#address-cells = <1>;
-			#size-cells = <1>;
-			ranges = <0x0 0x2a000 0x1000>,
+				 <0x49028000 0x49028000 0x1000>,
+				 <0x2000 0x2a000 0x1000>,
 				 <0x4902a000 0x4902a000 0x1000>;
+
+			mcasp0: mcasp@0 {
+				compatible = "ti,omap4-mcasp-audio";
+				reg = <0x0 0x2000>,
+				      <0x4902a000 0x1000>;	/* L3 data port */
+				reg-names = "mpu","dat";
+				interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "tx";
+				dmas = <&sdma 8>;
+				dma-names = "tx";
+				clocks = <&abe_clkctrl OMAP4_MCASP_CLKCTRL 0>;
+				clock-names = "fck";
+				op-mode = <1>;	/* MCASP_DIT_MODE */
+				serial-dir = < 1 >; /* 1 TX serializers */
+				status = "disabled";
+			};
 		};
 
 		target-module@2e000 {			/* 0x4012e000, ap 12 0c.0 */