usb: renesas_usbhs: Add access control for INTSTS1 and INTENB1 register

INTSTS1 and INTENB1 register of renesas_usbhs can access only Host mode.
This adds process of accessing INTSTS1 and INTENB1 only when renesas_usbhs
is Host mode.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/renesas_usbhs/mod.c

@@ -218,10 +218,12 @@ static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
 	/********************  spin lock ********************/
 	usbhs_lock(priv, flags);
 	state->intsts0 = usbhs_read(priv, INTSTS0);
-	state->intsts1 = usbhs_read(priv, INTSTS1);
-
 	intenb0 = usbhs_read(priv, INTENB0);
+
+	if (usbhs_mod_is_host(priv)) {
+		state->intsts1 = usbhs_read(priv, INTSTS1);
 		intenb1 = usbhs_read(priv, INTENB1);
+	}
 
 	/* mask */
 	if (mod) {
@@ -275,6 +277,7 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
 	 *	   - Function :: VALID bit should 0
 	 */
 	usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
+	if (usbhs_mod_is_host(priv))
 		usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
 
 	usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
@@ -303,6 +306,7 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
 	if (irq_state.intsts0 & BRDY)
 		usbhs_mod_call(priv, irq_ready, priv, &irq_state);
 
+	if (usbhs_mod_is_host(priv)) {
 		/* INTSTS1 */
 		if (irq_state.intsts1 & ATTCH)
 			usbhs_mod_call(priv, irq_attch, priv, &irq_state);
@@ -315,7 +319,7 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
 
 		if (irq_state.intsts1 & SACK)
 			usbhs_mod_call(priv, irq_sack, priv, &irq_state);
-
+	}
 	return IRQ_HANDLED;
 }
 
@@ -334,6 +338,7 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
 	 *  - update INTSTS0
 	 */
 	usbhs_write(priv, INTENB0, 0);
+	if (usbhs_mod_is_host(priv))
 		usbhs_write(priv, INTENB1, 0);
 
 	usbhs_write(priv, BEMPENB, 0);
@@ -368,6 +373,7 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
 			intenb0 |= BRDYE;
 		}
 
+		if (usbhs_mod_is_host(priv)) {
 			/*
 			 * INTSTS1
 			 */
@@ -383,10 +389,11 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
 			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);
 }