From 0767542941c535ebb156087593426bb1fb25e967 Mon Sep 17 00:00:00 2001 From: Li Jun Date: Tue, 28 Nov 2017 21:43:18 +0800 Subject: [PATCH] MLK-16604-1 usb: host: xhci-plat: add XHCI_MISSING_CAS quirk i.MX8MQ USB3 host needs XHCI_MISSING_CAS quirk to warm reset the port to enum the USB3 device plugged in while system sleep, as the port state is stuck in polling mode after resume. Signed-off-by: Li Jun Acked-by: Peter Chen (cherry picked from commit 9f1f4316775a061d3ad46c63f84a377e2ffd015d) --- drivers/usb/host/xhci-plat.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -303,6 +303,10 @@ static int xhci_plat_probe(struct platfo device_property_read_u32(tmpdev, "imod-interval-ns", &xhci->imod_interval); + + if (device_property_read_bool(tmpdev, + "usb3-resume-missing-cas")) + xhci->quirks |= XHCI_MISSING_CAS; } hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);