diff mbox series

[3/5] usb: cdns3: gadget: clear the interrupt status when disconnect the host

Message ID 20200901023352.25552-4-peter.chen@nxp.com
State New
Headers show
Series usb: cdns3: misc improvements | expand

Commit Message

Peter Chen Sept. 1, 2020, 2:33 a.m. UTC 
It is meaningless to handle any interrupts after disconnecting
with host

Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
 drivers/usb/cdns3/gadget.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index 03b54c239944..829bc917df39 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -2739,10 +2739,13 @@  static int cdns3_gadget_pullup(struct usb_gadget *gadget, int is_on)
 {
 	struct cdns3_device *priv_dev = gadget_to_cdns3_device(gadget);
 
-	if (is_on)
+	if (is_on) {
 		writel(USB_CONF_DEVEN, &priv_dev->regs->usb_conf);
-	else
+	} else {
+		writel(~0, &priv_dev->regs->ep_ists);
+		writel(~0, &priv_dev->regs->usb_ists);
 		writel(USB_CONF_DEVDS, &priv_dev->regs->usb_conf);
+	}
 
 	return 0;
 }