On Fri, Sep 14, 2018 at 03:33:30PM +0300, Mathias Nyman wrote: > From: Anshuman Gupta <anshuman.gupta@xxxxxxxxx> > > When USB bus host controller root hub resumes from autosuspend, > it immediately tries to enter auto-suspend, but there can be a > scenario when root hub is resuming its usb2 ports, in that particular > case USB host controller auto suspend fails since it is busy > to resuming its usb2 ports. > > This makes multiple failed cycles of auto-suspend until all usb2 > ports of host controller root hub do not resume. > > This patch uses USB core framework usb_hcd_start_port_resume, > usb_hcd_end_port_resume API's in order to autoresume/autosuspend > root hub properly. > > Signed-off-by: Anshuman Gupta <anshuman.gupta@xxxxxxxxx> > Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx> Not needed in stable? Does this fix a specific commit? thanks, greg k-h
