From: Gregory Herrero <gregory.herr...@intel.com>
In case controller is asked to stop while devices are connected,
disconnect all devices and clean up before stopping.
Signed-off-by: Gregory Herrero <gregory.herr...@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kau...@intel.com>
Tested-by: Robert Baldyga <r.bald...@samsung.com>
---
drivers/usb/dwc2/hcd.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 856e21c..257f957 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -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;
--
2.3.3
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