gistfile1.c

--- ../linux-2.6-3.1.5/drivers/ata/ahci.c	2011-12-09 17:57:05.000000000 +0100
+++ ahci.c	2011-12-12 23:21:48.655875372 +0100
@@ -570,6 +570,7 @@
 	struct ahci_host_priv *hpriv = host->private_data;
 	void __iomem *mmio = hpriv->mmio;
 	u32 ctl;
+	int rc;
 
 	if (mesg.event & PM_EVENT_SUSPEND &&
 	    hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
@@ -589,7 +590,11 @@
 		readl(mmio + HOST_CTL); /* flush */
 	}
 
-	return ata_pci_device_suspend(pdev, mesg);
+	msleep(500);
+	rc = ata_pci_device_suspend(pdev, mesg);
+	msleep(500);
+
+	return rc;
 }
 
 static int ahci_pci_device_resume(struct pci_dev *pdev)
@@ -597,6 +602,8 @@
 	struct ata_host *host = dev_get_drvdata(&pdev->dev);
 	int rc;
 
+	msleep(500);
+
 	rc = ata_pci_device_do_resume(pdev);
 	if (rc)
 		return rc;
@@ -609,7 +616,9 @@
 		ahci_pci_init_controller(host);
 	}
 
+	msleep(500);
 	ata_host_resume(host);
+	msleep(500);
 
 	return 0;
 }