usb: musb: core: disable irqs inside babble recovery

There's no point is splitting those anymore.

We're now also able to drop another forward
declaration.
Tested-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/musb_core.c

@@ -507,7 +507,6 @@ void musb_hnp_stop(struct musb *musb)
 	musb->port1_status &= ~(USB_PORT_STAT_C_CONNECTION << 16);
 }
 
-static void musb_disable_interrupts(struct musb *musb);
 static void musb_recover_from_babble(struct musb *musb);
 
 /*
@@ -883,11 +882,9 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 			if (power & MUSB_POWER_HSMODE) {
 				dev_err(musb->controller, "Babble\n");
 
-				if (is_host_active(musb)) {
-					musb_disable_interrupts(musb);
+				if (is_host_active(musb))
 					musb_recover_from_babble(musb);
 			}
-			}
 		} else {
 			dev_dbg(musb->controller, "BUS RESET as %s\n",
 				usb_otg_state_string(musb->xceiv->otg->state));
@@ -1835,6 +1832,8 @@ static void musb_recover_from_babble(struct musb *musb)
 	int ret;
 	u8 devctl;
 
+	musb_disable_interrupts(musb);
+
 	/*
 	 * wait at least 320 cycles of 60MHz clock. That's 5.3us, we will give
 	 * it some slack and wait for 10us.