On 10 February 2017 at 22:56, Robert Foss <robert.foss@xxxxxxxxxxxxx> wrote: > From: Andrew Bresticker <abrestic@xxxxxxxxxxxx> > > USB host controllers can take a significant amount of time to suspend > and resume, adding several hundred miliseconds to the kernel resume > time. Since the XHCI controller has no outside dependencies (other than > clocks, which are suspended late/resumed early), allow it to suspend and > resume asynchronously. > > Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx> > Tested-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx> > Tested-by: Robert Foss <robert.foss@xxxxxxxxxxxxx> > Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxxxxx> > --- > drivers/usb/host/xhci-plat.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c > index 3cf8e120c620..4d6741a0d8f8 100644 > --- a/drivers/usb/host/xhci-plat.c > +++ b/drivers/usb/host/xhci-plat.c > @@ -257,6 +257,7 @@ static int xhci_plat_probe(struct platform_device *pdev) > > pm_runtime_set_active(&pdev->dev); > pm_runtime_enable(&pdev->dev); > + device_enable_async_suspend(&pdev->dev); > > return 0; > > -- > 2.11.0.453.g787f75f05 > Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxx> -- Baolin.wang Best Regards -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
