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Commit 091473ad authored by Gregory Herrero's avatar Gregory Herrero Committed by Felipe Balbi
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usb: dwc2: host: disconnect hcd prior stopping it 



In case controller is asked to stop while devices are connected,
disconnect all devices and clean up before stopping.

Signed-off-by: default avatarGregory Herrero <gregory.herrero@intel.com>
Signed-off-by: default avatarMian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: default avatarRobert Baldyga <r.baldyga@samsung.com>
Tested-by: default avatarDinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: default avatarJohn Youn <johnyoun@synopsys.com>
Acked-by: default avatarJohn Youn <johnyoun@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 08c4ffc2

drivers/usb/dwc2/hcd.c

+5 −0
Original line number Diff line number Diff line
@@ -2350,7 +2350,12 @@ static void _dwc2_hcd_stop(struct usb_hcd *hcd) 
	struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);

	unsigned long flags;



	/* Wait for interrupt processing to finish */

	synchronize_irq(hcd->irq);



	spin_lock_irqsave(&hsotg->lock, flags);

	/* Ensure hcd is disconnected */

	dwc2_hcd_disconnect(hsotg);

	dwc2_hcd_stop(hsotg);

	hsotg->lx_state = DWC2_L3;

	hcd->state = HC_STATE_HALT;