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authorRafael J. Wysocki <rjw@sisk.pl>2008-10-06 22:46:05 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-01-06 10:44:29 -0800
commitadf094931ffb25ef4b381559918f1a34181a5273 (patch)
treebd343d4c15b21dff6a73359fd2d82ff77e30e0d4 /drivers/pci/pci-driver.c
parent238c6d54830c624f34ac9cf123ac04aebfca5013 (diff)
PM: Simplify the new suspend/hibernation framework for devices
PM: Simplify the new suspend/hibernation framework for devices Following the discussion at the Kernel Summit, simplify the new device PM framework by merging 'struct pm_ops' and 'struct pm_ext_ops' and removing pointers to 'struct pm_ext_ops' from 'struct platform_driver' and 'struct pci_driver'. After this change, the suspend/hibernation callbacks will only reside in 'struct device_driver' as well as at the bus type/ device class/device type level. Accordingly, PCI and platform device drivers are now expected to put their suspend/hibernation callbacks into the 'struct device_driver' embedded in 'struct pci_driver' or 'struct platform_driver', respectively. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@suse.cz> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/pci-driver.c')
-rw-r--r--drivers/pci/pci-driver.c46
1 files changed, 18 insertions, 28 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index b4cdd690ae71..4042d211c3e5 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -433,8 +433,7 @@ static int pci_pm_suspend(struct device *dev)
static int pci_pm_suspend_noirq(struct device *dev)
{
- struct pci_dev *pci_dev = to_pci_dev(dev);
- struct pci_driver *drv = pci_dev->driver;
+ struct device_driver *drv = dev->driver;
int error = 0;
if (drv && drv->pm) {
@@ -469,11 +468,10 @@ static int pci_pm_resume(struct device *dev)
static int pci_pm_resume_noirq(struct device *dev)
{
- struct pci_dev *pci_dev = to_pci_dev(dev);
- struct pci_driver *drv = pci_dev->driver;
+ struct device_driver *drv = dev->driver;
int error = 0;
- pci_fixup_device(pci_fixup_resume_early, pci_dev);
+ pci_fixup_device(pci_fixup_resume_early, to_pci_dev(dev));
if (drv && drv->pm) {
if (drv->pm->resume_noirq)
@@ -519,8 +517,7 @@ static int pci_pm_freeze(struct device *dev)
static int pci_pm_freeze_noirq(struct device *dev)
{
- struct pci_dev *pci_dev = to_pci_dev(dev);
- struct pci_driver *drv = pci_dev->driver;
+ struct device_driver *drv = dev->driver;
int error = 0;
if (drv && drv->pm) {
@@ -553,15 +550,14 @@ static int pci_pm_thaw(struct device *dev)
static int pci_pm_thaw_noirq(struct device *dev)
{
- struct pci_dev *pci_dev = to_pci_dev(dev);
- struct pci_driver *drv = pci_dev->driver;
+ struct device_driver *drv = dev->driver;
int error = 0;
if (drv && drv->pm) {
if (drv->pm->thaw_noirq)
error = drv->pm->thaw_noirq(dev);
} else {
- pci_fixup_device(pci_fixup_resume_early, pci_dev);
+ pci_fixup_device(pci_fixup_resume_early, to_pci_dev(dev));
error = pci_legacy_resume_early(dev);
}
@@ -589,8 +585,7 @@ static int pci_pm_poweroff(struct device *dev)
static int pci_pm_poweroff_noirq(struct device *dev)
{
- struct pci_dev *pci_dev = to_pci_dev(dev);
- struct pci_driver *drv = pci_dev->driver;
+ struct device_driver *drv = dev->driver;
int error = 0;
if (drv && drv->pm) {
@@ -625,7 +620,7 @@ static int pci_pm_restore(struct device *dev)
static int pci_pm_restore_noirq(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
- struct pci_driver *drv = pci_dev->driver;
+ struct device_driver *drv = dev->driver;
int error = 0;
pci_fixup_device(pci_fixup_resume, pci_dev);
@@ -654,17 +649,15 @@ static int pci_pm_restore_noirq(struct device *dev)
#endif /* !CONFIG_HIBERNATION */
-struct pm_ext_ops pci_pm_ops = {
- .base = {
- .prepare = pci_pm_prepare,
- .complete = pci_pm_complete,
- .suspend = pci_pm_suspend,
- .resume = pci_pm_resume,
- .freeze = pci_pm_freeze,
- .thaw = pci_pm_thaw,
- .poweroff = pci_pm_poweroff,
- .restore = pci_pm_restore,
- },
+struct dev_pm_ops pci_dev_pm_ops = {
+ .prepare = pci_pm_prepare,
+ .complete = pci_pm_complete,
+ .suspend = pci_pm_suspend,
+ .resume = pci_pm_resume,
+ .freeze = pci_pm_freeze,
+ .thaw = pci_pm_thaw,
+ .poweroff = pci_pm_poweroff,
+ .restore = pci_pm_restore,
.suspend_noirq = pci_pm_suspend_noirq,
.resume_noirq = pci_pm_resume_noirq,
.freeze_noirq = pci_pm_freeze_noirq,
@@ -673,7 +666,7 @@ struct pm_ext_ops pci_pm_ops = {
.restore_noirq = pci_pm_restore_noirq,
};
-#define PCI_PM_OPS_PTR &pci_pm_ops
+#define PCI_PM_OPS_PTR (&pci_dev_pm_ops)
#else /* !CONFIG_PM_SLEEP */
@@ -703,9 +696,6 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner,
drv->driver.owner = owner;
drv->driver.mod_name = mod_name;
- if (drv->pm)
- drv->driver.pm = &drv->pm->base;
-
spin_lock_init(&drv->dynids.lock);
INIT_LIST_HEAD(&drv->dynids.list);