On Mon, 2009-08-17 at 08:20 +0800, Rafael J. Wysocki wrote: > Set async_suspend for all PCI devices and PCIe port services. > Alan said that we can not break the resume order of the uhci/ehci host controllers on some platforms. For example, 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02) 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02) 00:1a.7 must be resumed after 00:1a.0 and 00:1a.1 please refer to this thread: http://marc.info/?l=linux-acpi&m=122996117918188&w=2 So I'm afraid we can not suspend/resume the PCI devices in parallel, unless we add this off-tree dependency at the same time. thanks, rui > --- > drivers/input/serio/i8042.c | 2 ++ > drivers/pci/pci.c | 2 ++ > drivers/pci/pcie/portdrv_core.c | 1 + > 3 files changed, 5 insertions(+) > > Index: linux-2.6/drivers/pci/pci.c > =================================================================== > --- linux-2.6.orig/drivers/pci/pci.c > +++ linux-2.6/drivers/pci/pci.c > @@ -1409,6 +1409,8 @@ void pci_pm_init(struct pci_dev *dev) > } else { > dev->pme_support = 0; > } > + > + device_enable_async_suspend(&dev->dev, true); > } > > /** > Index: linux-2.6/drivers/pci/pcie/portdrv_core.c > =================================================================== > --- linux-2.6.orig/drivers/pci/pcie/portdrv_core.c > +++ linux-2.6/drivers/pci/pcie/portdrv_core.c > @@ -280,6 +280,7 @@ static void pcie_device_init(struct pci_ > dev_set_name(device, "%s:pcie%02x", > pci_name(parent), get_descriptor_id(port_type, service_type)); > device->parent = &parent->dev; > + device_enable_async_suspend(device, true); > } > > /** -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
