[PATCH 16/19] usb: dwc2: host: resume root hub on port connect

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From: Gregory Herrero <gregory.herrero@xxxxxxxxx>

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.herrero@xxxxxxxxx>
---
 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;
-- 
1.9.1

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