[PATCH] 3c59x PM fixes

This patch adds some missing pci-related calls to the suspend and resume
routines of the 3c59x driver.  It also makes the driver free/request IRQ on
suspend/resume, in accordance with the proposal at:
http://lists.osdl.org/pipermail/linux-pm/2005-May/000955.html

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 17 insertions, 1 deletions

diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 07746b95fd83..de0dc4ab6e54 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -973,6 +973,11 @@ static int vortex_suspend (struct pci_dev *pdev, pm_message_t state)
                         netif_device_detach(dev);
                         vortex_down(dev, 1);
                 }
+                pci_save_state(pdev);
+                pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
+                free_irq(dev->irq, dev);
+                pci_disable_device(pdev);
+                pci_set_power_state(pdev, pci_choose_state(pdev, state));
         }
         return 0;
 }
@@ -980,8 +985,19 @@ static int vortex_suspend (struct pci_dev *pdev, pm_message_t state)
 static int vortex_resume (struct pci_dev *pdev)
 {
         struct net_device *dev = pci_get_drvdata(pdev);
+        struct vortex_private *vp = netdev_priv(dev);
 
-        if (dev && dev->priv) {
+        if (dev && vp) {
+                pci_set_power_state(pdev, PCI_D0);
+                pci_restore_state(pdev);
+                pci_enable_device(pdev);
+                pci_set_master(pdev);
+                if (request_irq(dev->irq, vp->full_bus_master_rx ?
+                                &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev)) {
+                        printk(KERN_WARNING "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
+                        pci_disable_device(pdev);
+                        return -EBUSY;
+                }
                 if (netif_running(dev)) {
                         vortex_up(dev);
                         netif_device_attach(dev);