[PATCH] usb: gadget: udc: renesas-usb3: clear VBOUT bit in DRD_CON

[Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>]

This driver should clear the bit. Otherwise, the VBUS will output
wrongly if the usb port on a board has VBUS output capability.

Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for
		      Renesas USB3.0 peripheral controller")
Cc: <stable@xxxxxxxxxxxxxxx> # v4.5+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
 drivers/usb/gadget/udc/renesas_usb3.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 93a3bec..fb8fc34 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -106,6 +106,7 @@
 
 /* DRD_CON */
 #define DRD_CON_PERI_CON	BIT(24)
+#define DRD_CON_VBOUT		BIT(0)
 
 /* USB_INT_ENA_1 and USB_INT_STA_1 */
 #define USB_INT_1_B3_PLLWKUP	BIT(31)
@@ -363,6 +364,7 @@ static void usb3_init_epc_registers(struct renesas_usb3 *usb3)
 {
 	/* FIXME: How to change host / peripheral mode as well? */
 	usb3_set_bit(usb3, DRD_CON_PERI_CON, USB3_DRD_CON);
+	usb3_clear_bit(usb3, DRD_CON_VBOUT, USB3_DRD_CON);
 
 	usb3_write(usb3, ~0, USB3_USB_INT_STA_1);
 	usb3_enable_irq_1(usb3, USB_INT_1_VBUS_CNG);
-- 
1.9.1