diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
index 8986764..6ed1a36 100644
--- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
+++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
@@ -181,15 +181,12 @@ Volume Ramp
 * SSIU (Serial Sound Interface Unit)
 =============================================
 
-There is no DT settings for SSIU, because SSIU will be automatically
-selected via SSI.
 SSIU can avoid some under/over run error, because it has some buffer.
 But you can't use it if SSI was PIO mode.
-In DMA mode, you can select not to use SSIU by using "no-busif" on DT.
+In DMA mode, you can select not to use SSIU by using "no-busif" via SSI.
 
-	&ssi0 {
-		no-busif;
-	};
+SSIU handles BUSIF which will be used for TDM Split mode.
+This driver is assuming that audio-graph card will be used.
 
 =============================================
 * SSI (Serial Sound Interface)
@@ -268,6 +265,9 @@ Required properties:
 - rcar_sound,ssi		: Should contain SSI feature.
 				  The number of SSI subnode should be same as HW.
 				  see below for detail.
+- rcar_sound,ssiu		: Should contain SSIU feature.
+				  The number of SSIU subnode should be same as HW.
+				  see below for detail.
 - rcar_sound,src		: Should contain SRC feature.
 				  The number of SRC subnode should be same as HW.
 				  see below for detail.
@@ -437,56 +437,55 @@ rcar_sound: sound@ec500000 {
 		};
 	};
 
+	rcar_sound,ssiu {
+		ssiu00: ssiu-0 {
+			dmas = <&audma0 0x15>, <&audma1 0x16>;
+			dma-names = "rx", "tx";
+		};
+		ssiu01: ssiu-1 {
+			dmas = <&audma0 0x35>, <&audma1 0x36>;
+			dma-names = "rx", "tx";
+		};
+
+		...
+
+		ssiu95: ssiu-49 {
+			dmas = <&audma0 0xA5>, <&audma1 0xA6>;
+			dma-names = "rx", "tx";
+		};
+		ssiu96: ssiu-50 {
+			dmas = <&audma0 0xA7>, <&audma1 0xA8>;
+			dma-names = "rx", "tx";
+		};
+		ssiu97: ssiu-51 {
+			dmas = <&audma0 0xA9>, <&audma1 0xAA>;
+			dma-names = "rx", "tx";
+		};
+	};
+
 	rcar_sound,ssi {
 		ssi0: ssi-0 {
 			interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>;
-			dma-names = "rx", "tx", "rxu", "txu";
+			dmas = <&audma0 0x01>, <&audma1 0x02>;
+			dma-names = "rx", "tx";
 		};
 		ssi1: ssi-1 {
 			interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x03>, <&audma1 0x04>, <&audma0 0x49>, <&audma1 0x4a>;
-			dma-names = "rx", "tx", "rxu", "txu";
-		};
-		ssi2: ssi-2 {
-			interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x05>, <&audma1 0x06>, <&audma0 0x63>, <&audma1 0x64>;
-			dma-names = "rx", "tx", "rxu", "txu";
-		};
-		ssi3: ssi-3 {
-			interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x07>, <&audma1 0x08>, <&audma0 0x6f>, <&audma1 0x70>;
-			dma-names = "rx", "tx", "rxu", "txu";
-		};
-		ssi4: ssi-4 {
-			interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x09>, <&audma1 0x0a>, <&audma0 0x71>, <&audma1 0x72>;
-			dma-names = "rx", "tx", "rxu", "txu";
-		};
-		ssi5: ssi-5 {
-			interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x0b>, <&audma1 0x0c>, <&audma0 0x73>, <&audma1 0x74>;
-			dma-names = "rx", "tx", "rxu", "txu";
-		};
-		ssi6: ssi-6 {
-			interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x0d>, <&audma1 0x0e>, <&audma0 0x75>, <&audma1 0x76>;
-			dma-names = "rx", "tx", "rxu", "txu";
-		};
-		ssi7: ssi-7 {
-			interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x0f>, <&audma1 0x10>, <&audma0 0x79>, <&audma1 0x7a>;
-			dma-names = "rx", "tx", "rxu", "txu";
+			dmas = <&audma0 0x03>, <&audma1 0x04>;
+			dma-names = "rx", "tx";
 		};
+
+		...
+
 		ssi8: ssi-8 {
 			interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x11>, <&audma1 0x12>, <&audma0 0x7b>, <&audma1 0x7c>;
-			dma-names = "rx", "tx", "rxu", "txu";
+			dmas = <&audma0 0x11>, <&audma1 0x12>;
+			dma-names = "rx", "tx";
 		};
 		ssi9: ssi-9 {
 			interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
-			dmas = <&audma0 0x13>, <&audma1 0x14>, <&audma0 0x7d>, <&audma1 0x7e>;
-			dma-names = "rx", "tx", "rxu", "txu";
+			dmas = <&audma0 0x13>, <&audma1 0x14>;
+			dma-names = "rx", "tx";
 		};
 	};
 
