Commit 385321e2 authored Jul 21, 2014 by Rafael J. Wysocki Committed by Bjorn Helgaas Sep 02, 2014

PCI/PM: Allow PCI devices to be put into D3cold during system suspend



Commit 448bd857 ("PCI/PM: add PCIe runtime D3cold support") added a
check to prevent PCI devices from being put into D3cold during system
suspend without giving any particular reason.

Also the check isn't really necessary, because acpi_pci_set_power_state()
maps PCI_D3hot to ACPI_STATE_D3_COLD anyway.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

parent fe9a743a

drivers/pci/pci.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -1907,10 +1907,6 @@ int pci_prepare_to_sleep(struct pci_dev *dev)
		if (target_state == PCI_POWER_ERROR)
		return -EIO;

		/* D3cold during system suspend/hibernate is not supported */
		if (target_state > PCI_D3hot)
		target_state = PCI_D3hot;

		pci_enable_wake(dev, target_state, device_may_wakeup(&dev->dev));

		error = pci_set_power_state(dev, target_state);

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