diff options
| author | Gregory Herrero <gregory.herrero@intel.com> | 2015-04-29 23:09:19 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-04-29 23:20:17 +0300 |
| commit | 285046aa11ad85a4de24891f5458d45f50d1bcc5 (patch) | |
| tree | d82ee50aa226cd772ea2850a7ed7de5cb8710fe7 /drivers/usb/dwc2/core_intr.c | |
| parent | 2d1165a4b95e25aed83fed737d53ab0c87b831e6 (diff) | |
| download | linux-285046aa11ad85a4de24891f5458d45f50d1bcc5.tar.xz | |
usb: dwc2: add hibernation core parameter
dwc2 may not be able to exit from hibernation if the hardware
does not provide a way to detect resume signalling in this state.
Thus, add the possibility to disable hibernation feature.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2/core_intr.c')
| -rw-r--r-- | drivers/usb/dwc2/core_intr.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 9e510bb612bd..927be1e8b3dc 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -347,7 +347,7 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg) dctl &= ~DCTL_RMTWKUPSIG; writel(dctl, hsotg->regs + DCTL); ret = dwc2_exit_hibernation(hsotg, true); - if (ret) + if (ret && (ret != -ENOTSUPP)) dev_err(hsotg->dev, "exit hibernation failed\n"); call_gadget(hsotg, resume); @@ -428,8 +428,9 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg) ret = dwc2_enter_hibernation(hsotg); if (ret) { - dev_err(hsotg->dev, - "enter hibernation failed\n"); + if (ret != -ENOTSUPP) + dev_err(hsotg->dev, + "enter hibernation failed\n"); goto skip_power_saving; } |