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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: Pavel Machek <pavel@suse.cz>

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

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Pavel Machek 2006-09-17 19:39:06 +02:00 committed by Stefan Richter
parent 9531f13ae5
commit f0645e7720
1 changed files with 6 additions and 4 deletions
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10
drivers/ieee1394/ohci1394.c
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@ -3532,6 +3532,7 @@ static void ohci1394_pci_remove(struct pci_dev *pdev)
#ifdef CONFIG_PM #ifdef CONFIG_PM
static int ohci1394_pci_resume (struct pci_dev *pdev) static int ohci1394_pci_resume (struct pci_dev *pdev)
{ {
/* PowerMac resume code comes first */
#ifdef CONFIG_PPC_PMAC #ifdef CONFIG_PPC_PMAC
if (machine_is(powermac)) { if (machine_is(powermac)) {
struct device_node *of_node; struct device_node *of_node;
@ -3543,17 +3544,19 @@ static int ohci1394_pci_resume (struct pci_dev *pdev)
} }
#endif /* CONFIG_PPC_PMAC */ #endif /* CONFIG_PPC_PMAC */
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev); pci_restore_state(pdev);
pci_enable_device(pdev); pci_enable_device(pdev);
return 0; return 0;
} }
static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state)
{ {
pci_save_state(pdev); pci_save_state(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
/* PowerMac suspend code comes last */
#ifdef CONFIG_PPC_PMAC #ifdef CONFIG_PPC_PMAC
if (machine_is(powermac)) { if (machine_is(powermac)) {
struct device_node *of_node; 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) if (of_node)
pmac_call_feature(PMAC_FTR_1394_ENABLE, of_node, 0, 0); pmac_call_feature(PMAC_FTR_1394_ENABLE, of_node, 0, 0);
} }
#endif #endif /* CONFIG_PPC_PMAC */
return 0; return 0;
} }
#endif #endif /* CONFIG_PM */
#define PCI_CLASS_FIREWIRE_OHCI ((PCI_CLASS_SERIAL_FIREWIRE << 8) | 0x10) #define PCI_CLASS_FIREWIRE_OHCI ((PCI_CLASS_SERIAL_FIREWIRE << 8) | 0x10)