From: Gregory Herrero <gregory.herr...@intel.com>
When disconnecting cable, controller will detect a suspend condition
and enter partial power down. If vbus_session is called by the phy
driver during hibernation, make sure controller exit hibernation
before it is accessed.
Signed-off-by: Jianqiang Tang <jianqiang.t...@intel.com>
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/gadget.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 1f11b50..2bb85b0 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3288,14 +3288,15 @@ static int dwc2_hsotg_vbus_session(struct usb_gadget
*gadget, int is_active)
dev_dbg(hsotg->dev, "%s: is_active: %d\n", __func__, is_active);
spin_lock_irqsave(&hsotg->lock, flags);
+ /*
+ * If controller is hibernated, it must exit from hibernation
+ * before being initialized / de-initialized
+ */
+ if (hsotg->lx_state == DWC2_L2)
+ dwc2_exit_hibernation(hsotg, false);
+
if (is_active) {
hsotg->op_state = OTG_STATE_B_PERIPHERAL;
- /*
- * If controller is hibernated, it must exit from hibernation
- * before being initialized
- */
- if (hsotg->lx_state == DWC2_L2)
- dwc2_exit_hibernation(hsotg, false);
dwc2_hsotg_core_init_disconnected(hsotg, false);
if (hsotg->enabled)
--
2.3.3
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