usb: cdns3: gadget: reset EP_CLAIMED flag while unloading

EP_CLAIMED flag is used to track the claimed endpoints. While unloading the
module, Reset EP_CLAIMED flag for all enabled endpoints. So that it can be
reused.

Signed-off-by: Sanket Parmar <sparmar@cadence.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/20191029122441.5816-1-sparmar@cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index d9e7f2d06098f1576d588bb1c1f5acdb6fd969b4..8421fc028c400f2748d4df4bf2ed75d578da8917 100644 (file)
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -2379,6 +2379,8 @@ static int cdns3_gadget_udc_stop(struct usb_gadget *gadget)
                writel(EP_CMD_EPRST, &priv_dev->regs->ep_cmd);
                readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val,
                                          !(val & EP_CMD_EPRST), 1, 100);
+
+               priv_ep->flags &= ~EP_CLAIMED;
        }
 
        /* disable interrupt for device */