From: Gregory Herrero <gregory.herr...@intel.com>
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.
Signed-off-by: Gregory Herrero <gregory.herr...@intel.com>
---
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;
--
2.3.3
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