From 2cf2581cd2290ccef674f1be5f7977d66702eedb Mon Sep 17 00:00:00 2001 From: Frank Li Date: Thu, 18 Feb 2021 16:51:08 -0600 Subject: usb: cdns3: add power lost support for system resume If the controller lost its power during the system suspend, we need to do all initialiation operations. Signed-off-by: Peter Chen Signed-off-by: Frank Li Signed-off-by: Peter Chen --- drivers/usb/cdns3/cdns3-gadget.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/usb/cdns3/cdns3-gadget.c') diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c index 582bfeceedb4..44b7301b1888 100644 --- a/drivers/usb/cdns3/cdns3-gadget.c +++ b/drivers/usb/cdns3/cdns3-gadget.c @@ -3304,6 +3304,8 @@ static int cdns3_gadget_resume(struct cdns *cdns, bool hibernated) return 0; cdns3_gadget_config(priv_dev); + if (hibernated) + writel(USB_CONF_DEVEN, &priv_dev->regs->usb_conf); return 0; } -- cgit v1.2.3-70-g09d2