From a7714c1cb11dc3bb97a76d2bb0560415d155b1d5 Mon Sep 17 00:00:00 2001 From: Gregory Herrero Date: Wed, 29 Apr 2015 22:09:14 +0200 Subject: [PATCH] usb: dwc2: host: resume root hub on port connect Once hub is runtime suspended, dwc2 must resume it on port connect event. Else, roothub will stay in suspended state and will not resume transfers. Acked-by: John Youn Signed-off-by: Gregory Herrero Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/hcd_intr.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c index 551ba87..6927bba 100644 --- a/drivers/usb/dwc2/hcd_intr.c +++ b/drivers/usb/dwc2/hcd_intr.c @@ -350,6 +350,9 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg) dev_vdbg(hsotg->dev, "--Port Interrupt HPRT0=0x%08x Port Connect Detected--\n", hprt0); + if (hsotg->lx_state != DWC2_L0) + usb_hcd_resume_root_hub(hsotg->priv); + hsotg->flags.b.port_connect_status_change = 1; hsotg->flags.b.port_connect_status = 1; hprt0_modify |= HPRT0_CONNDET; -- 2.7.4