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usb: cdns3: gadget: clear the interrupt status when disconnect the host

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It is meaningless to handle any interrupts after disconnecting
with host

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Peter Chen
2020-09-01 10:33:50 +08:00
committed by Felipe Balbi
parent b5148d946f
commit 0eeda05995
1 changed files with 5 additions and 2 deletions
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7
drivers/usb/cdns3/gadget.c
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@@ -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;
}