This corrects the documented interface for mpc52xx device trees.
Sound devices should be using 'sound' for the device_type field, not
the type of sound interface.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
 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
 
 
                // 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>;
 
                // 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>;
 
 
                // 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>;
 
                // 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>;