PCI: PCIe portdrv: Implement pm object

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@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

6 files changed, 26 insertions, 35 deletions

diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 3d21bbba3308..fb254b2454de 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -475,7 +475,7 @@ static void pciehp_remove (struct pcie_device *dev)
 }
 
 #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;
@@ -503,7 +503,7 @@ static int pciehp_resume (struct pcie_device *dev)
         }
         return 0;
 }
-#endif
+#endif /* PM */
 
 static struct pcie_port_service_driver hpdriver_portdrv = {
         .name           = PCIE_MODULE_NAME,
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index e11c03194063..32ade5af927e 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/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 aerdriver = {
         .probe          = aer_probe,
         .remove         = aer_remove,
 
-        .suspend        = aer_suspend,
-        .resume         = aer_resume,
-
         .err_handler    = &aer_error_handlers,
 
         .reset_link     = aer_root_reset,
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 5b818bd835ef..17ad53868f9f 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -38,8 +38,8 @@ extern struct bus_type pcie_port_bus_type;
 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);
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 569af0015fce..5a5bfe7cdf5f 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -410,13 +410,12 @@ int pcie_port_device_register(struct pci_dev *dev)
 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;
 }
@@ -424,11 +423,10 @@ static int suspend_iter(struct device *dev, void *data)
 /**
  * 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)
@@ -448,11 +446,11 @@ static int resume_iter(struct device *dev, void *data)
  * 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)
 {
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 94d0e2af9bad..a61f4930d676 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -44,21 +44,21 @@ static int pcie_portdrv_restore_config(struct pci_dev *dev)
 }
 
 #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,
+};
 
-}
+#define PCIE_PORTDRV_PM_OPS     (&pcie_portdrv_pm_ops)
 
-static int pcie_portdrv_resume(struct pci_dev *dev)
-{
-        pci_set_master(dev);
-        return pcie_port_device_resume(dev);
-}
-#else
-#define pcie_portdrv_suspend NULL
-#define pcie_portdrv_resume NULL
-#endif
+#else /* !PM */
+
+#define PCIE_PORTDRV_PM_OPS     NULL
+#endif /* !PM */
 
 /*
  * pcie_portdrv_probe - Probe PCI-Express port devices
@@ -268,10 +268,9 @@ static struct pci_driver pcie_portdriver = {
         .probe          = pcie_portdrv_probe,
         .remove         = pcie_portdrv_remove,
 
-        .suspend        = pcie_portdrv_suspend,
-        .resume         = pcie_portdrv_resume,
-
         .err_handler    = &pcie_portdrv_err_handler,
+
+        .driver.pm      = PCIE_PORTDRV_PM_OPS,
 };
 
 static int __init pcie_portdrv_init(void)
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h
index 5d2afcfa6bc1..b4c79545330b 100644
--- a/include/linux/pcieport_if.h
+++ b/include/linux/pcieport_if.h
@@ -59,7 +59,7 @@ 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 */