From: Stefan Rompf <stefan@loplof.de>
Date: Tue, 17 Jan 2006 21:52:51 +0000 (+0100)
Subject: [PATCH] starfire: Implement suspend/resume
X-Git-Tag: firefly_0821_release~37609^2~84
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d4fbeabbc9e68c80738fe59135d201c3ed5fe40f;p=firefly-linux-kernel-4.4.55.git

[PATCH] starfire: Implement suspend/resume

This patch implements suspend and resume methods for the starfire driver. It
allows me to put my desktop PC with a starfire dual board into S4.

Signed-Off-By: Stefan Rompf <stefan@loplof.de>

Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---

diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index d167deda9a53..ed5458c45446 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -2084,6 +2084,38 @@ static int netdev_close(struct net_device *dev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int starfire_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+
+	if (netif_running(dev)) {
+		netif_device_detach(dev);
+		netdev_close(dev);
+	}
+
+	pci_save_state(pdev);
+	pci_set_power_state(pdev, pci_choose_state(pdev,state));
+
+	return 0;
+}
+
+static int starfire_resume(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+
+	if (netif_running(dev)) {
+		netdev_open(dev);
+		netif_device_attach(dev);
+	}
+
+	return 0;
+}
+#endif /* CONFIG_PM */
+
 
 static void __devexit starfire_remove_one (struct pci_dev *pdev)
 {
@@ -2115,6 +2147,10 @@ static struct pci_driver starfire_driver = {
 	.name		= DRV_NAME,
 	.probe		= starfire_init_one,
 	.remove		= __devexit_p(starfire_remove_one),
+#ifdef CONFIG_PM
+	.suspend	= starfire_suspend,
+	.resume		= starfire_resume,
+#endif /* CONFIG_PM */
 	.id_table	= starfire_pci_tbl,
 };