| Message ID | 20210416124819.A3B26A005C@mailhost.synopsys.com |
|---|---|
| State | New |
| Headers | show |
| Series | [01/15] usb: dwc2: Update exit hibernation when port reset is asserted | expand |
On 4/16/2021 4:48 PM, Artur Petrosyan wrote: > Adds a new flow of exiting hibernation when PC is resumed > from suspend state. > > 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 92848629cc61..035d4911a3c3 100644 > --- a/drivers/usb/dwc2/hcd.c > +++ b/drivers/usb/dwc2/hcd.c > @@ -4470,6 +4470,16 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd) > set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); > break; > case DWC2_POWER_DOWN_PARAM_HIBERNATION: > + ret = dwc2_exit_hibernation(hsotg, 0, 0, 1); > + if (ret) > + dev_err(hsotg->dev, "exit hibernation failed.\n"); > + > + /* > + * Set HW accessible bit before powering on the controller > + * since an interrupt may rise. > + */ > + set_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 92848629cc61..035d4911a3c3 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -4470,6 +4470,16 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd) set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); break; case DWC2_POWER_DOWN_PARAM_HIBERNATION: + ret = dwc2_exit_hibernation(hsotg, 0, 0, 1); + if (ret) + dev_err(hsotg->dev, "exit hibernation failed.\n"); + + /* + * Set HW accessible bit before powering on the controller + * since an interrupt may rise. + */ + set_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 exiting hibernation when PC is resumed from suspend state. Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> --- Changes in v2: - None drivers/usb/dwc2/hcd.c | 10 ++++++++++ 1 file changed, 10 insertions(+)