[PATCH] sky2: stop/start hardware idle timer on suspend/resume

eb35cf60 · Stephen Hemminger <[email protected]> · 2006-06-13 17:17:31 +09:00

The resume bug was caused not by an early interrupt but because the idle
timeout was not being stopped on suspend.  Also disable hardware IRQ's
on suspend.  Will need to revisit this with hotplug?

Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Commit: eb35cf60e462491249166182e3e755d3d5d91a28
Parents: 8ab8fca2

Changes

1 files changed · +13 −4

File	Status	Add	Del	Content
drivers/net/sky2.c	modified	+13	−4	View file

drivers/net/sky2.c

View file

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index df899dc..97fe956 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2161,6 +2161,13 @@ static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port,
 /* If idle then force a fake soft NAPI poll once a second
  * to work around cases where sharing an edge triggered interrupt.
  */
+static inline void sky2_idle_start(struct sky2_hw *hw)
+{
+	if (idle_timeout > 0)
+		mod_timer(&hw->idle_timer,
+			  jiffies + msecs_to_jiffies(idle_timeout));
+}
+
 static void sky2_idle(unsigned long arg)
 {
 	struct sky2_hw *hw = (struct sky2_hw *) arg;
@@ -3350,9 +3357,7 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
 	sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
 
 	setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw);
-	if (idle_timeout > 0)
-		mod_timer(&hw->idle_timer,
-			  jiffies + msecs_to_jiffies(idle_timeout));
+	sky2_idle_start(hw);
 
 	pci_set_drvdata(pdev, hw);
 
@@ -3430,6 +3435,8 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
 	if (!(pstate == PCI_D3hot || pstate == PCI_D3cold))
 		return -EINVAL;
 
+	del_timer_sync(&hw->idle_timer);
+
 	for (i = 0; i < hw->ports; i++) {
 		struct net_device *dev = hw->dev[i];
 
@@ -3472,10 +3479,12 @@ static int sky2_resume(struct pci_dev *pdev)
 				printk(KERN_ERR PFX "%s: could not up: %d\n",
 				       dev->name, err);
 				dev_close(dev);
-				break;
+				goto out;
 			}
 		}
 	}
+
+	sky2_idle_start(hw);
 out:
 	return err;
 }