On Wed, 8 Jun 2016, Wenyou Yang wrote: > In order to the save power consumption, as a workaround, suspend > forcibly the USB PORTA/B/C via set the SUSPEND_A/B/C bits of OHCI > Interrupt Configuration Register in the SFRs while OHCI USB suspend. > > This suspend operation must be done before the USB clock is disabled, > resume after the USB clock is enabled. > > Signed-off-by: Wenyou Yang <wenyou.yang@xxxxxxxxx> > --- You never answered the questions I posted for the first version of this patch: What does this mean? What does suspending a port do? Is it the same as a normal USB port suspend? If it is the same, why doesn't the USB_PORT_FEAT_SUSPEND subcase of the SetPortFeature case in ohci_hub_control() already take care of this? Alan Stern -- 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
