Alan Stern wrote:
> On Thu, 13 May 2010, Anand Gadiyar wrote:
>
> > Add support for suspend and resume to the ehci-omap driver.
> > Added routines for platform_driver suspend/resume and
> > wrappers around ehci_bus_suspend/resume.
>
> > +#ifdef CONFIG_PM
> >
> /*-------------------------------------------------------------------------*/
> > +static int ehci_omap_dev_suspend(struct device *dev)
> > +{
> > + struct ehci_hcd_omap *omap = dev_get_drvdata(dev);
> > +
> > + if (!omap->suspended)
> > + ehci_omap_enable(omap, 0);
> > + return 0;
> > +}
> > +
> > +static int ehci_omap_dev_resume(struct device *dev)
> > +{
> > + struct ehci_hcd_omap *omap = dev_get_drvdata(dev);
> > +
> > + if (omap->suspended)
> > + ehci_omap_enable(omap, 1);
> > + return 0;
> > +}
> > +
> > +static int ehci_omap_bus_suspend(struct usb_hcd *hcd)
> > +{
> > + struct usb_bus *bus = hcd_to_bus(hcd);
> > + int ret;
> > +
> > + ret = ehci_bus_suspend(hcd);
> > +
> > + ehci_omap_dev_suspend(bus->controller);
> > +
> > + return ret;
> > +}
> > +static int ehci_omap_bus_resume(struct usb_hcd *hcd)
> > +{
> > + struct usb_bus *bus = hcd_to_bus(hcd);
> > + int ret;
> > +
> > + ehci_omap_dev_resume(bus->controller);
> > +
> > + ret = ehci_bus_resume(hcd);
> > +
> > + return ret;
> > +}
>
> You could use the runtime-PM interface instead of explicitly suspending
> and resuming the controller. It is now standard.
>
Will work on this. I'll be out for a while, so it could be some time
before I repost.
Thanks,
Anand
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