| Message ID | 20210416124811.BBFDBA005C@mailhost.synopsys.com |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On 4/16/2021 4:48 PM, Artur Petrosyan wrote: > Adds a new flow of entering hibernation when PC is > hibernated or suspended. > > Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> > --- > Changes in v2: > - None > > drivers/usb/dwc2/hcd.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c > index 093b1717df01..92848629cc61 100644 > --- a/drivers/usb/dwc2/hcd.c > +++ b/drivers/usb/dwc2/hcd.c > @@ -4387,6 +4387,16 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd) > clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); > break; > case DWC2_POWER_DOWN_PARAM_HIBERNATION: > + /* Enter hibernation */ > + spin_unlock_irqrestore(&hsotg->lock, flags); > + ret = dwc2_enter_hibernation(hsotg, 1); > + if (ret) > + dev_err(hsotg->dev, "enter hibernation failed\n"); > + spin_lock_irqsave(&hsotg->lock, flags); > + > + /* After entering suspend, hardware is not accessible */ > + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); > + break; > case DWC2_POWER_DOWN_PARAM_NONE: > /* > * If not hibernation nor partial power down are supported, >
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 093b1717df01..92848629cc61 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -4387,6 +4387,16 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd) clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); break; case DWC2_POWER_DOWN_PARAM_HIBERNATION: + /* Enter hibernation */ + spin_unlock_irqrestore(&hsotg->lock, flags); + ret = dwc2_enter_hibernation(hsotg, 1); + if (ret) + dev_err(hsotg->dev, "enter hibernation failed\n"); + spin_lock_irqsave(&hsotg->lock, flags); + + /* After entering suspend, hardware is not accessible */ + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + break; case DWC2_POWER_DOWN_PARAM_NONE: /* * If not hibernation nor partial power down are supported,
Adds a new flow of entering hibernation when PC is hibernated or suspended. Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> --- Changes in v2: - None drivers/usb/dwc2/hcd.c | 10 ++++++++++ 1 file changed, 10 insertions(+)