diff --git a/Documentation/powerpc/mpc52xx-device-tree-bindings.txt b/Documentation/powerpc/mpc52xx-device-tree-bindings.txt
index d077d764f82b..7fb3b8a44eb6 100644
--- a/Documentation/powerpc/mpc52xx-device-tree-bindings.txt
+++ b/Documentation/powerpc/mpc52xx-device-tree-bindings.txt
@@ -157,8 +157,8 @@ rtc@<addr>	rtc		*-rtc		Real time clock
 mscan@<addr>	mscan		*-mscan		CAN bus controller
 pci@<addr>	pci		*-pci		PCI bridge
 serial@<addr>	serial		*-psc-uart	PSC in serial mode
-i2s@<addr>	i2s		*-psc-i2s	PSC in i2s mode
-ac97@<addr>	ac97		*-psc-ac97	PSC in ac97 mode
+i2s@<addr>	sound		*-psc-i2s	PSC in i2s mode
+ac97@<addr>	sound		*-psc-ac97	PSC in ac97 mode
 spi@<addr>	spi		*-psc-spi	PSC in spi mode
 irda@<addr>	irda		*-psc-irda	PSC in IrDA mode
 spi@<addr>	spi		*-spi		MPC52xx spi device
diff --git a/arch/powerpc/boot/dts/lite5200.dts b/arch/powerpc/boot/dts/lite5200.dts
index 8bc0d259796d..a8efb59f5dd7 100644
--- a/arch/powerpc/boot/dts/lite5200.dts
+++ b/arch/powerpc/boot/dts/lite5200.dts
@@ -238,7 +238,7 @@
 
 		// PSC3 in CODEC mode example
 		i2s@2400 {		// PSC3
-			device_type = "i2s";
+			device_type = "sound";
 			compatible = "mpc5200-psc-i2s\0mpc52xx-psc-i2s";
 			reg = <2400 100>;
 			interrupts = <2 3 0>;
@@ -265,7 +265,7 @@
 
 		// PSC6 in AC97 mode example
 		ac97@2c00 {		// PSC6
-			device_type = "ac97";
+			device_type = "sound";
 			compatible = "mpc5200-psc-ac97\0mpc52xx-psc-ac97";
 			reg = <2c00 100>;
 			interrupts = <2 4 0>;
diff --git a/arch/powerpc/boot/dts/lite5200b.dts b/arch/powerpc/boot/dts/lite5200b.dts
index 81cb76418a78..1aabee432d86 100644
--- a/arch/powerpc/boot/dts/lite5200b.dts
+++ b/arch/powerpc/boot/dts/lite5200b.dts
@@ -243,7 +243,7 @@
 
 		// PSC3 in CODEC mode example
 		i2s@2400 {		// PSC3
-			device_type = "i2s";
+			device_type = "sound";
 			compatible = "mpc5200b-psc-i2s\0mpc52xx-psc-i2s";
 			reg = <2400 100>;
 			interrupts = <2 3 0>;
@@ -270,7 +270,7 @@
 
 		// PSC6 in AC97 mode example
 		ac97@2c00 {		// PSC6
-			device_type = "ac97";
+			device_type = "sound";
 			compatible = "mpc5200b-psc-ac97\0mpc52xx-psc-ac97";
 			reg = <2c00 100>;
 			interrupts = <2 4 0>;