diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 9d2dcb121c5e95cc7e6ba81a5cdfa59ae07637ae..ce6c162920f7bfcb5bef980b2438aeba4661d12b 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -53,7 +53,9 @@ static void musb_do_idle(unsigned long _musb)
 {
 	struct musb	*musb = (void *)_musb;
 	unsigned long	flags;
+#ifdef CONFIG_USB_MUSB_HDRC_HCD
 	u8	power;
+#endif
 	u8	devctl;
 
 	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);