[PATCH/RFC v3 3/4] usb: gadget: udc: renesas_usb3: use usb role switch API

[Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>]

This patch uses usb role switch API if the register suceeeded.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 drivers/usb/gadget/udc/renesas_usb3.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index c878449..bfb5803 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -657,7 +657,11 @@ static void _usb3_set_mode(struct renesas_usb3 *usb3, bool host)
 
 static void usb3_set_mode(struct renesas_usb3 *usb3, bool host)
 {
-	_usb3_set_mode(usb3, host);
+	if (usb3->role_sw)
+		usb_role_switch_set_role(usb3->role_sw, host ?
+					 USB_ROLE_HOST : USB_ROLE_DEVICE);
+	else
+		_usb3_set_mode(usb3, host);
 }
 
 static void usb3_vbus_out(struct renesas_usb3 *usb3, bool enable)
@@ -672,8 +676,8 @@ static void usb3_mode_config(struct renesas_usb3 *usb3, bool host, bool a_dev)
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&usb3->lock, flags);
 	usb3_set_mode(usb3, host);
+	spin_lock_irqsave(&usb3->lock, flags);
 	usb3_vbus_out(usb3, a_dev);
 	/* for A-Peripheral or forced B-device mode */
 	if ((!host && a_dev) ||
-- 
1.9.1