[PATCH 4/5] usb: gadget: udc: renesas_usb3: Fix PN_INT_ENA disabling timing

[Yoshihiro Shimoda]

The PN_INT_ENA register should be used after usb3_pn_change() is called.
So, this patch moves the access from renesas_usb3_stop_controller() to
usb3_disable_pipe_n().

Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 
peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda...@renesas.com>
---
 drivers/usb/gadget/udc/renesas_usb3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/renesas_usb3.c 
b/drivers/usb/gadget/udc/renesas_usb3.c
index c05097b..cd4c885 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -623,7 +623,6 @@ static void renesas_usb3_stop_controller(struct 
renesas_usb3 *usb3)
 {
        usb3_disconnect(usb3);
        usb3_write(usb3, 0, USB3_P0_INT_ENA);
-       usb3_write(usb3, 0, USB3_PN_INT_ENA);
        usb3_write(usb3, 0, USB3_USB_OTG_INT_ENA);
        usb3_write(usb3, 0, USB3_USB_INT_ENA_1);
        usb3_write(usb3, 0, USB3_USB_INT_ENA_2);
@@ -1682,6 +1681,7 @@ static int usb3_disable_pipe_n(struct renesas_usb3_ep 
*usb3_ep)
 
        spin_lock_irqsave(&usb3->lock, flags);
        if (!usb3_pn_change(usb3, usb3_ep->num)) {
+               usb3_write(usb3, 0, USB3_PN_INT_ENA);
                usb3_write(usb3, 0, USB3_PN_RAMMAP);
                usb3_clear_bit(usb3, PN_CON_EN, USB3_PN_CON);
        }
-- 
1.9.1