usb: musb: save dynfifo in musb struct

Save dynamic FIFO read only information for later uses during
musb_save/restore_context functions.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/musb/musb_core.c

@@ -1341,8 +1341,10 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb)
 	reg = musb_read_configdata(mbase);
 
 	strcpy(aInfo, (reg & MUSB_CONFIGDATA_UTMIDW) ? "UTMI-16" : "UTMI-8");
-	if (reg & MUSB_CONFIGDATA_DYNFIFO)
+	if (reg & MUSB_CONFIGDATA_DYNFIFO) {
 		strcat(aInfo, ", dyn FIFOs");
+		musb->dyn_fifo = true;
+	}
 	if (reg & MUSB_CONFIGDATA_MPRXE) {
 		strcat(aInfo, ", bulk combine");
 		musb->bulk_combine = true;

drivers/usb/musb/musb_core.h

@@ -411,6 +411,7 @@ struct musb {
 
 	unsigned		hb_iso_rx:1;	/* high bandwidth iso rx? */
 	unsigned		hb_iso_tx:1;	/* high bandwidth iso tx? */
+	unsigned		dyn_fifo:1;	/* dynamic FIFO supported? */
 
 	unsigned		bulk_split:1;
 #define	can_bulk_split(musb,type) \