Wireless / ath5k: Simplify suspend and resume callbacks

Simplify the suspend and resume callbacks of ath5k by converting the
driver to struct dev_pm_ops and allowing the PCI PM core to do the
PCI-specific suspend/resume handling.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 11 insertions, 24 deletions

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 70831f1bcf04..5aaa9bd036db 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -195,12 +195,13 @@ static int __devinit	ath5k_pci_probe(struct pci_dev *pdev,
                                 const struct pci_device_id *id);
 static void __devexit   ath5k_pci_remove(struct pci_dev *pdev);
 #ifdef CONFIG_PM
-static int              ath5k_pci_suspend(struct pci_dev *pdev,
-                                        pm_message_t state);
-static int              ath5k_pci_resume(struct pci_dev *pdev);
+static int              ath5k_pci_suspend(struct device *dev);
+static int              ath5k_pci_resume(struct device *dev);
+
+SIMPLE_DEV_PM_OPS(ath5k_pm_ops, ath5k_pci_suspend, ath5k_pci_resume);
+#define ATH5K_PM_OPS    (&ath5k_pm_ops)
 #else
-#define ath5k_pci_suspend NULL
-#define ath5k_pci_resume NULL
+#define ATH5K_PM_OPS    NULL
 #endif /* CONFIG_PM */
 
 static struct pci_driver ath5k_pci_driver = {
@@ -208,8 +209,7 @@ static struct pci_driver ath5k_pci_driver = {
         .id_table       = ath5k_pci_id_table,
         .probe          = ath5k_pci_probe,
         .remove         = __devexit_p(ath5k_pci_remove),
-        .suspend        = ath5k_pci_suspend,
-        .resume         = ath5k_pci_resume,
+        .driver.pm      = ATH5K_PM_OPS,
 };
 
 
@@ -703,33 +703,20 @@ ath5k_pci_remove(struct pci_dev *pdev)
 }
 
 #ifdef CONFIG_PM
-static int
-ath5k_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+static int ath5k_pci_suspend(struct device *dev)
 {
-        struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+        struct ieee80211_hw *hw = pci_get_drvdata(to_pci_dev(dev));
         struct ath5k_softc *sc = hw->priv;
 
         ath5k_led_off(sc);
-
-        pci_save_state(pdev);
-        pci_disable_device(pdev);
-        pci_set_power_state(pdev, PCI_D3hot);
-
         return 0;
 }
 
-static int
-ath5k_pci_resume(struct pci_dev *pdev)
+static int ath5k_pci_resume(struct device *dev)
 {
+        struct pci_dev *pdev = to_pci_dev(dev);
         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
         struct ath5k_softc *sc = hw->priv;
-        int err;
-
-        pci_restore_state(pdev);
-
-        err = pci_enable_device(pdev);
-        if (err)
-                return err;
 
         /*
          * Suspend/Resume resets the PCI configuration space, so we have to