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authorGregory Herrero <gregory.herrero@intel.com>2015-04-29 20:09:14 (GMT)
committerFelipe Balbi <balbi@ti.com>2015-04-29 20:19:50 (GMT)
commita7714c1cb11dc3bb97a76d2bb0560415d155b1d5 (patch)
tree0d4f7bfcf388e6eabbec0a91b5933603862da741 /drivers/usb
parent99a657983a1e03fd3b8495199bb0a4870c1abda4 (diff)
downloadlinux-a7714c1cb11dc3bb97a76d2bb0560415d155b1d5.tar.xz
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 <johnyoun@synopsys.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/dwc2/hcd_intr.c3
1 files changed, 3 insertions, 0 deletions
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;