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Date: Tue, 13 Jan 2009 14:48:41 +0100
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Jesse Barnes <jbarnes@...tuousgeek.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Linux PCI <linux-pci@...r.kernel.org>
Subject: [PATCH 7/7] PCI PCIe portdrv: Implement pm object
From: Rafael J. Wysocki <rjw@...k.pl>
Implement pm object for the PCI Express port driver in order to use
the new power management framework and reduce the code size.
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
drivers/pci/hotplug/pciehp_core.c | 4 +--
drivers/pci/pcie/aer/aerdrv.c | 6 -----
drivers/pci/pcie/portdrv.h | 4 +--
drivers/pci/pcie/portdrv_core.c | 14 +++++-------
drivers/pci/pcie/portdrv_pci.c | 43 ++++++++++++--------------------------
include/linux/pcieport_if.h | 2 -
6 files changed, 25 insertions(+), 48 deletions(-)
Index: linux-2.6/drivers/pci/pcie/portdrv_pci.c
===================================================================
--- linux-2.6.orig/drivers/pci/pcie/portdrv_pci.c
+++ linux-2.6/drivers/pci/pcie/portdrv_pci.c
@@ -44,33 +44,21 @@ static int pcie_portdrv_restore_config(s
}
#ifdef CONFIG_PM
-static int pcie_portdrv_suspend(struct pci_dev *dev, pm_message_t state)
-{
- return pcie_port_device_suspend(dev, state);
-
-}
+static struct dev_pm_ops pcie_portdrv_pm_ops = {
+ .suspend = pcie_port_device_suspend,
+ .resume = pcie_port_device_resume,
+ .freeze = pcie_port_device_suspend,
+ .thaw = pcie_port_device_resume,
+ .poweroff = pcie_port_device_suspend,
+ .restore = pcie_port_device_resume,
+};
-static int pcie_portdrv_suspend_late(struct pci_dev *dev, pm_message_t state)
-{
- return pci_save_state(dev);
-}
+#define PCIE_PORTDRV_PM_OPS (&pcie_portdrv_pm_ops)
-static int pcie_portdrv_resume_early(struct pci_dev *dev)
-{
- return pci_restore_state(dev);
-}
+#else /* !PM */
-static int pcie_portdrv_resume(struct pci_dev *dev)
-{
- pcie_portdrv_restore_config(dev);
- return pcie_port_device_resume(dev);
-}
-#else
-#define pcie_portdrv_suspend NULL
-#define pcie_portdrv_suspend_late NULL
-#define pcie_portdrv_resume_early NULL
-#define pcie_portdrv_resume NULL
-#endif
+#define PCIE_PORTDRV_PM_OPS NULL
+#endif /* !PM */
/*
* pcie_portdrv_probe - Probe PCI-Express port devices
@@ -281,12 +269,9 @@ static struct pci_driver pcie_portdriver
.probe = pcie_portdrv_probe,
.remove = pcie_portdrv_remove,
- .suspend = pcie_portdrv_suspend,
- .suspend_late = pcie_portdrv_suspend_late,
- .resume_early = pcie_portdrv_resume_early,
- .resume = pcie_portdrv_resume,
-
.err_handler = &pcie_portdrv_err_handler,
+
+ .driver.pm = PCIE_PORTDRV_PM_OPS,
};
static int __init pcie_portdrv_init(void)
Index: linux-2.6/drivers/pci/pcie/portdrv.h
===================================================================
--- linux-2.6.orig/drivers/pci/pcie/portdrv.h
+++ linux-2.6/drivers/pci/pcie/portdrv.h
@@ -32,8 +32,8 @@ extern struct bus_type pcie_port_bus_typ
extern int pcie_port_device_probe(struct pci_dev *dev);
extern int pcie_port_device_register(struct pci_dev *dev);
#ifdef CONFIG_PM
-extern int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state);
-extern int pcie_port_device_resume(struct pci_dev *dev);
+extern int pcie_port_device_suspend(struct device *dev);
+extern int pcie_port_device_resume(struct device *dev);
#endif
extern void pcie_port_device_remove(struct pci_dev *dev);
extern int __must_check pcie_port_bus_register(void);
Index: linux-2.6/drivers/pci/pcie/portdrv_core.c
===================================================================
--- linux-2.6.orig/drivers/pci/pcie/portdrv_core.c
+++ linux-2.6/drivers/pci/pcie/portdrv_core.c
@@ -282,13 +282,12 @@ int pcie_port_device_register(struct pci
static int suspend_iter(struct device *dev, void *data)
{
struct pcie_port_service_driver *service_driver;
- pm_message_t state = * (pm_message_t *) data;
if ((dev->bus == &pcie_port_bus_type) &&
(dev->driver)) {
service_driver = to_service_driver(dev->driver);
if (service_driver->suspend)
- service_driver->suspend(to_pcie_device(dev), state);
+ service_driver->suspend(to_pcie_device(dev));
}
return 0;
}
@@ -296,11 +295,10 @@ static int suspend_iter(struct device *d
/**
* pcie_port_device_suspend - suspend port services associated with a PCIe port
* @dev: PCI Express port to handle
- * @state: Representation of system power management transition in progress
*/
-int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state)
+int pcie_port_device_suspend(struct device *dev)
{
- return device_for_each_child(&dev->dev, &state, suspend_iter);
+ return device_for_each_child(dev, NULL, suspend_iter);
}
static int resume_iter(struct device *dev, void *data)
@@ -320,11 +318,11 @@ static int resume_iter(struct device *de
* pcie_port_device_suspend - resume port services associated with a PCIe port
* @dev: PCI Express port to handle
*/
-int pcie_port_device_resume(struct pci_dev *dev)
+int pcie_port_device_resume(struct device *dev)
{
- return device_for_each_child(&dev->dev, NULL, resume_iter);
+ return device_for_each_child(dev, NULL, resume_iter);
}
-#endif
+#endif /* PM */
static int remove_iter(struct device *dev, void *data)
{
Index: linux-2.6/include/linux/pcieport_if.h
===================================================================
--- linux-2.6.orig/include/linux/pcieport_if.h
+++ linux-2.6/include/linux/pcieport_if.h
@@ -55,7 +55,7 @@ struct pcie_port_service_driver {
const char *name;
int (*probe) (struct pcie_device *dev);
void (*remove) (struct pcie_device *dev);
- int (*suspend) (struct pcie_device *dev, pm_message_t state);
+ int (*suspend) (struct pcie_device *dev);
int (*resume) (struct pcie_device *dev);
/* Service Error Recovery Handler */
Index: linux-2.6/drivers/pci/pcie/aer/aerdrv.c
===================================================================
--- linux-2.6.orig/drivers/pci/pcie/aer/aerdrv.c
+++ linux-2.6/drivers/pci/pcie/aer/aerdrv.c
@@ -40,9 +40,6 @@ MODULE_LICENSE("GPL");
static int __devinit aer_probe (struct pcie_device *dev);
static void aer_remove(struct pcie_device *dev);
-static int aer_suspend(struct pcie_device *dev, pm_message_t state)
-{return 0;}
-static int aer_resume(struct pcie_device *dev) {return 0;}
static pci_ers_result_t aer_error_detected(struct pci_dev *dev,
enum pci_channel_state error);
static void aer_error_resume(struct pci_dev *dev);
@@ -61,9 +58,6 @@ static struct pcie_port_service_driver a
.probe = aer_probe,
.remove = aer_remove,
- .suspend = aer_suspend,
- .resume = aer_resume,
-
.err_handler = &aer_error_handlers,
.reset_link = aer_root_reset,
Index: linux-2.6/drivers/pci/hotplug/pciehp_core.c
===================================================================
--- linux-2.6.orig/drivers/pci/hotplug/pciehp_core.c
+++ linux-2.6/drivers/pci/hotplug/pciehp_core.c
@@ -466,7 +466,7 @@ static void pciehp_remove (struct pcie_d
}
#ifdef CONFIG_PM
-static int pciehp_suspend (struct pcie_device *dev, pm_message_t state)
+static int pciehp_suspend (struct pcie_device *dev)
{
dev_info(&dev->device, "%s ENTRY\n", __func__);
return 0;
@@ -494,7 +494,7 @@ static int pciehp_resume (struct pcie_de
}
return 0;
}
-#endif
+#endif /* PM */
static struct pcie_port_service_driver hpdriver_portdrv = {
.name = PCIE_MODULE_NAME,
--
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