Acked-by: Minas Harutyunyan <[email protected]> On 5/23/2018 5:25 PM, Artur Petrosyan wrote: > In case when a hub is connected to DWC2 host > auto suspend occurs and host goes to > hibernation. When any device connected to hub > host hibernation exiting incorrectly. > > - Added dwc2_hcd_rem_wakeup() function call to > exit from suspend state by remote wakeup. > > - Increase timeout value for port suspend bit to be set. > > Signed-off-by: Artur Petrosyan <[email protected]> > --- > drivers/usb/dwc2/hcd.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c > index 1faefea16cec..736dcc816abf 100644 > --- a/drivers/usb/dwc2/hcd.c > +++ b/drivers/usb/dwc2/hcd.c > @@ -5434,7 +5434,7 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg > *hsotg) > dwc2_writel(hprt0, hsotg->regs + HPRT0); > > /* Wait for the HPRT0.PrtSusp register field to be set */ > - if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 300)) > + if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 3000)) > dev_warn(hsotg->dev, "Suspend wasn't generated\n"); > > /* > @@ -5615,6 +5615,8 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg > *hsotg, int rem_wakeup, > return ret; > } > > + dwc2_hcd_rem_wakeup(hsotg); > + > hsotg->hibernated = 0; > hsotg->bus_suspended = 0; > hsotg->lx_state = DWC2_L0; >
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