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authorGregory Herrero <gregory.herrero@intel.com>2015-09-22 15:16:41 +0200
committerFelipe Balbi <balbi@ti.com>2015-10-01 19:40:15 +0200
commit31927b6b68acd21258b1f4ef24464acae60cfd36 (patch)
tree1596bff073c6b2340babcf5458b5136e79989e05 /drivers/usb/dwc2/hcd.c
parentusb: dwc2: host: enter hibernation during bus suspend (diff)
downloadlinux-31927b6b68acd21258b1f4ef24464acae60cfd36.tar.xz
linux-31927b6b68acd21258b1f4ef24464acae60cfd36.zip
usb: dwc2: host: update hcd and lx_state during start/stop callbacks
During hcd initialization, hardware accessible flag and lx_state must be reset to the working state since controller is powered at this stage. Same logic applied for stop callback. Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Tested-by: Robert Baldyga <r.baldyga@samsung.com> Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: John Youn <johnyoun@synopsys.com> Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2/hcd.c')
-rw-r--r--drivers/usb/dwc2/hcd.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 459b441e4838..65ae0a390600 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -2318,8 +2318,9 @@ static int _dwc2_hcd_start(struct usb_hcd *hcd)
dev_dbg(hsotg->dev, "DWC OTG HCD START\n");
spin_lock_irqsave(&hsotg->lock, flags);
-
+ hsotg->lx_state = DWC2_L0;
hcd->state = HC_STATE_RUNNING;
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
if (dwc2_is_device_mode(hsotg)) {
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -2350,6 +2351,9 @@ static void _dwc2_hcd_stop(struct usb_hcd *hcd)
spin_lock_irqsave(&hsotg->lock, flags);
dwc2_hcd_stop(hsotg);
+ hsotg->lx_state = DWC2_L3;
+ hcd->state = HC_STATE_HALT;
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
spin_unlock_irqrestore(&hsotg->lock, flags);
usleep_range(1000, 3000);