--- zzzz-none-000/linux-3.10.107/drivers/usb/renesas_usbhs/mod.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/usb/renesas_usbhs/mod.c	2021-02-04 17:41:59.000000000 +0000
@@ -213,12 +213,19 @@
 {
 	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
 	u16 intenb0, intenb1;
+	unsigned long flags;
 
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
 	state->intsts0 = usbhs_read(priv, INTSTS0);
-	state->intsts1 = usbhs_read(priv, INTSTS1);
-
 	intenb0 = usbhs_read(priv, INTENB0);
-	intenb1 = usbhs_read(priv, INTENB1);
+
+	if (usbhs_mod_is_host(priv)) {
+		state->intsts1 = usbhs_read(priv, INTSTS1);
+		intenb1 = usbhs_read(priv, INTENB1);
+	} else {
+		state->intsts1 = intenb1 = 0;
+	}
 
 	/* mask */
 	if (mod) {
@@ -229,6 +236,8 @@
 		state->bempsts &= mod->irq_bempsts;
 		state->brdysts &= mod->irq_brdysts;
 	}
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
 
 	/*
 	 * Check whether the irq enable registers and the irq status are set
@@ -270,7 +279,8 @@
 	 *	   - Function :: VALID bit should 0
 	 */
 	usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
-	usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
+	if (usbhs_mod_is_host(priv))
+		usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
 
 	/*
 	 * The driver should not clear the xxxSTS after the line of
@@ -305,19 +315,20 @@
 	if (irq_state.intsts0 & BRDY)
 		usbhs_mod_call(priv, irq_ready, priv, &irq_state);
 
-	/* INTSTS1 */
-	if (irq_state.intsts1 & ATTCH)
-		usbhs_mod_call(priv, irq_attch, priv, &irq_state);
-
-	if (irq_state.intsts1 & DTCH)
-		usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
+	if (usbhs_mod_is_host(priv)) {
+		/* INTSTS1 */
+		if (irq_state.intsts1 & ATTCH)
+			usbhs_mod_call(priv, irq_attch, priv, &irq_state);
 
-	if (irq_state.intsts1 & SIGN)
-		usbhs_mod_call(priv, irq_sign, priv, &irq_state);
+		if (irq_state.intsts1 & DTCH)
+			usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
 
-	if (irq_state.intsts1 & SACK)
-		usbhs_mod_call(priv, irq_sack, priv, &irq_state);
+		if (irq_state.intsts1 & SIGN)
+			usbhs_mod_call(priv, irq_sign, priv, &irq_state);
 
+		if (irq_state.intsts1 & SACK)
+			usbhs_mod_call(priv, irq_sack, priv, &irq_state);
+	}
 	return IRQ_HANDLED;
 }
 
@@ -336,7 +347,8 @@
 	 *  - update INTSTS0
 	 */
 	usbhs_write(priv, INTENB0, 0);
-	usbhs_write(priv, INTENB1, 0);
+	if (usbhs_mod_is_host(priv))
+		usbhs_write(priv, INTENB1, 0);
 
 	usbhs_write(priv, BEMPENB, 0);
 	usbhs_write(priv, BRDYENB, 0);
@@ -370,25 +382,27 @@
 			intenb0 |= BRDYE;
 		}
 
-		/*
-		 * INTSTS1
-		 */
-		if (mod->irq_attch)
-			intenb1 |= ATTCHE;
+		if (usbhs_mod_is_host(priv)) {
+			/*
+			 * INTSTS1
+			 */
+			if (mod->irq_attch)
+				intenb1 |= ATTCHE;
 
-		if (mod->irq_dtch)
-			intenb1 |= DTCHE;
+			if (mod->irq_dtch)
+				intenb1 |= DTCHE;
 
-		if (mod->irq_sign)
-			intenb1 |= SIGNE;
+			if (mod->irq_sign)
+				intenb1 |= SIGNE;
 
-		if (mod->irq_sack)
-			intenb1 |= SACKE;
+			if (mod->irq_sack)
+				intenb1 |= SACKE;
+		}
 	}
 
 	if (intenb0)
 		usbhs_write(priv, INTENB0, intenb0);
 
-	if (intenb1)
+	if (usbhs_mod_is_host(priv) && intenb1)
 		usbhs_write(priv, INTENB1, intenb1);
 }