On Tue, Apr 17, 2012 at 1:07 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > Moreover, I really don't think it's a good idea to put PCI Express ports into > low-power states in general. It might work on your platform, whatever it is, > but that doesn't mean it's going to work on every PCI Express system out > there. I actually know of a number of such systems where it surely won't > work at all. The runtime PM support for PCIe port is not turned on by default, we need # echo auto > /sys/devices/pcixxxx:xx/<pci id>/power/control to turn on it. And we will turn on it on system it works. Is this sufficient? Best Regards, Huang Ying -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
