PCI hotplug: acpiphp: assume device is in state D0 after powering on a slot.

Devices which do not support PCI configuration space based power management may not otherwise be enabled. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

PCI hotplug: acpiphp: assume device is in state D0 after powering on a slot.
Devices which do not support PCI configuration space based power management may not otherwise be enabled. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Ian Campbell · Jesse Barnes
1 parent e522a7126c
Showing 1 changed file with 7 additions and 0 deletions Side-by-side Diff
drivers/pci/hotplug/acpiphp_glue.c
@@ -827,6 +827,13 @@
 	acpiphp_set_hpp_values(bus);
 	acpiphp_set_acpi_region(slot);
 	pci_enable_bridges(bus);
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+		/* Assume that newly added devices are powered on already. */
+		if (!dev->is_added)
+			dev->current_state = PCI_D0;
+	}
+
 	pci_bus_add_devices(bus);
  
 	list_for_each_entry(func, &slot->funcs, sibling) {
...	...	@@ -827,6 +827,13 @@
827	827	acpiphp_set_hpp_values(bus);
828	828	acpiphp_set_acpi_region(slot);
829	829	pci_enable_bridges(bus);
	830	+
	831	+ list_for_each_entry(dev, &bus->devices, bus_list) {
	832	+ /* Assume that newly added devices are powered on already. */
	833	+ if (!dev->is_added)
	834	+ dev->current_state = PCI_D0;
	835	+ }
	836	+
830	837	pci_bus_add_devices(bus);
831	838
832	839	list_for_each_entry(func, &slot->funcs, sibling) {