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Date: Tue, 30 Dec 2008 23:49:54 +0100
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Len Brown <lenb@...nel.org>
Cc: Jesse Barnes <jbarnes@...tuousgeek.org>,
Pavel Machek <pavel@...e.cz>,
pm list <linux-pm@...ts.linux-foundation.org>,
Matthew Wilcox <matthew@....cx>,
"H. Peter Anvin" <hpa@...or.com>,
LKML <linux-kernel@...r.kernel.org>, Greg KH <greg@...ah.com>,
Linux PCI <linux-pci@...r.kernel.org>
Subject: [RFC][PATCH 10/10] PCI PM: Put PM callbacks in the order of execution
Put PM callbacks in drivers/pci/pci-driver.c in the order in which
they are executed which makes it much easier to follow the code.
No functional changes should result from this.
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
drivers/pci/pci-driver.c | 86 +++++++++++++++++++++++------------------------
1 file changed, 43 insertions(+), 43 deletions(-)
Index: linux-2.6/drivers/pci/pci-driver.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci-driver.c
+++ linux-2.6/drivers/pci/pci-driver.c
@@ -370,6 +370,19 @@ static int pci_legacy_suspend_late(struc
return i;
}
+static int pci_legacy_resume_early(struct device *dev)
+{
+ int error = 0;
+ struct pci_dev * pci_dev = to_pci_dev(dev);
+ struct pci_driver * drv = pci_dev->driver;
+
+ pci_fixup_device(pci_fixup_resume_early, pci_dev);
+
+ if (drv && drv->resume_early)
+ error = drv->resume_early(pci_dev);
+ return error;
+}
+
static int pci_legacy_resume(struct device *dev)
{
int error;
@@ -388,19 +401,6 @@ static int pci_legacy_resume(struct devi
return error;
}
-static int pci_legacy_resume_early(struct device *dev)
-{
- int error = 0;
- struct pci_dev * pci_dev = to_pci_dev(dev);
- struct pci_driver * drv = pci_dev->driver;
-
- pci_fixup_device(pci_fixup_resume_early, pci_dev);
-
- if (drv && drv->resume_early)
- error = drv->resume_early(pci_dev);
- return error;
-}
-
/* Auxiliary functions used by the new power management framework */
static int pci_restore_standard_config(struct pci_dev *pci_dev)
@@ -547,36 +547,36 @@ static int pci_pm_suspend_noirq(struct d
return error;
}
-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 device_driver *drv = dev->driver;
int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
- return pci_legacy_resume(dev);
+ return pci_legacy_resume_early(dev);
- error = pci_pm_default_resume(pci_dev);
+ pci_pm_default_resume_noirq(pci_dev);
- if (!error && drv && drv->pm && drv->pm->resume)
- error = drv->pm->resume(dev);
+ if (drv && drv->pm && drv->pm->resume_noirq)
+ error = drv->pm->resume_noirq(dev);
return error;
}
-static int pci_pm_resume_noirq(struct device *dev)
+static int pci_pm_resume(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct device_driver *drv = dev->driver;
int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
- return pci_legacy_resume_early(dev);
+ return pci_legacy_resume(dev);
- pci_pm_default_resume_noirq(pci_dev);
+ error = pci_pm_default_resume(pci_dev);
- if (drv && drv->pm && drv->pm->resume_noirq)
- error = drv->pm->resume_noirq(dev);
+ if (!error && drv && drv->pm && drv->pm->resume)
+ error = drv->pm->resume(dev);
return error;
}
@@ -632,36 +632,36 @@ static int pci_pm_freeze_noirq(struct de
return error;
}
-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 device_driver *drv = dev->driver;
int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
- return pci_legacy_resume(dev);
+ return pci_legacy_resume_early(dev);
- pci_pm_reenable_device(pci_dev);
+ pci_update_current_state(pci_dev, PCI_D0);
- if (drv && drv->pm && drv->pm->thaw)
- error = drv->pm->thaw(dev);
+ if (drv && drv->pm && drv->pm->thaw_noirq)
+ error = drv->pm->thaw_noirq(dev);
return error;
}
-static int pci_pm_thaw_noirq(struct device *dev)
+static int pci_pm_thaw(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct device_driver *drv = dev->driver;
int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
- return pci_legacy_resume_early(dev);
+ return pci_legacy_resume(dev);
- pci_update_current_state(pci_dev, PCI_D0);
+ pci_pm_reenable_device(pci_dev);
- if (drv && drv->pm && drv->pm->thaw_noirq)
- error = drv->pm->thaw_noirq(dev);
+ if (drv && drv->pm && drv->pm->thaw)
+ error = drv->pm->thaw(dev);
return error;
}
@@ -702,36 +702,36 @@ static int pci_pm_poweroff_noirq(struct
return error;
}
-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 device_driver *drv = dev->driver;
int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
- return pci_legacy_resume(dev);
+ return pci_legacy_resume_early(dev);
- error = pci_pm_default_resume(pci_dev);
+ pci_pm_default_resume_noirq(pci_dev);
- if (!error && drv && drv->pm && drv->pm->restore)
- error = drv->pm->restore(dev);
+ if (drv && drv->pm && drv->pm->restore_noirq)
+ error = drv->pm->restore_noirq(dev);
return error;
}
-static int pci_pm_restore_noirq(struct device *dev)
+static int pci_pm_restore(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct device_driver *drv = dev->driver;
int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
- return pci_legacy_resume_early(dev);
+ return pci_legacy_resume(dev);
- pci_pm_default_resume_noirq(pci_dev);
+ error = pci_pm_default_resume(pci_dev);
- if (drv && drv->pm && drv->pm->restore_noirq)
- error = drv->pm->restore_noirq(dev);
+ if (!error && drv && drv->pm && drv->pm->restore)
+ error = drv->pm->restore(dev);
return error;
}
--
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