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Commit f0645e77 authored by Pavel Machek's avatar Pavel Machek Committed by Stefan Richter
Browse files

set power state of firewire host during suspend 



Put firewire host controller in PCI Dx state for system suspend.
(I was not able to measure any power savings, but it sounds like right
thing to do, anyway.)

Signed-off-by: default avatarPavel Machek <pavel@suse.cz>

Update by stefanr:  Shuffle with existing PPC_PMAC code.  Set power
state in the resume hook too.

Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
parent 9531f13a

drivers/ieee1394/ohci1394.c

+6 −4
Original line number Diff line number Diff line
@@ -3532,6 +3532,7 @@ static void ohci1394_pci_remove(struct pci_dev *pdev) 
#ifdef CONFIG_PM

static int ohci1394_pci_resume (struct pci_dev *pdev)

{

/* PowerMac resume code comes first */

#ifdef CONFIG_PPC_PMAC

	if (machine_is(powermac)) {

		struct device_node *of_node;
@@ -3543,17 +3544,19 @@ static int ohci1394_pci_resume (struct pci_dev *pdev) 
	}

#endif /* CONFIG_PPC_PMAC */



	pci_set_power_state(pdev, PCI_D0);

	pci_restore_state(pdev);

	pci_enable_device(pdev);



	return 0;

}





static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state)

{

	pci_save_state(pdev);

	pci_set_power_state(pdev, pci_choose_state(pdev, state));



/* PowerMac suspend code comes last */

#ifdef CONFIG_PPC_PMAC

	if (machine_is(powermac)) {

		struct device_node *of_node;
@@ -3563,11 +3566,10 @@ static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) 
		if (of_node)

			pmac_call_feature(PMAC_FTR_1394_ENABLE, of_node, 0, 0);

	}

#endif



#endif /* CONFIG_PPC_PMAC */

	return 0;

}

#endif

#endif /* CONFIG_PM */



#define PCI_CLASS_FIREWIRE_OHCI     ((PCI_CLASS_SERIAL_FIREWIRE << 8) | 0x10)