[PATCH net-next 1/3] net: ethernet: ave: Add suspend/resume support

[Kunihiko Hayashi]

This patch introduces suspend and resume functions to ave driver.

Signed-off-by: Kunihiko Hayashi <hayashi.kunih...@socionext.com>
---
 drivers/net/ethernet/socionext/sni_ave.c | 44 ++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/drivers/net/ethernet/socionext/sni_ave.c 
b/drivers/net/ethernet/socionext/sni_ave.c
index 6732f5c..64115b1 100644
--- a/drivers/net/ethernet/socionext/sni_ave.c
+++ b/drivers/net/ethernet/socionext/sni_ave.c
@@ -1734,6 +1734,49 @@ static int ave_remove(struct platform_device *pdev)
        return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int ave_suspend(struct device *dev)
+{
+       struct net_device *ndev = dev_get_drvdata(dev);
+       struct ave_private *priv = netdev_priv(ndev);
+       int ret = 0;
+
+       if (netif_running(ndev)) {
+               ret = ave_stop(ndev);
+               netif_device_detach(ndev);
+       }
+
+       return ret;
+}
+
+static int ave_resume(struct device *dev)
+{
+       struct net_device *ndev = dev_get_drvdata(dev);
+       struct ave_private *priv = netdev_priv(ndev);
+       int ret = 0;
+
+       ave_global_reset(ndev);
+
+       if (ndev->phydev) {
+               ret = phy_resume(ndev->phydev);
+               if (ret)
+                       return ret;
+       }
+
+       if (netif_running(ndev)) {
+               ret = ave_open(ndev);
+               netif_device_attach(ndev);
+       }
+
+       return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(ave_pm_ops, ave_suspend, ave_resume);
+#define AVE_PM_OPS     (&ave_pm_ops)
+#else
+#define AVE_PM_OPS     NULL
+#endif
+
 static int ave_pro4_get_pinmode(struct ave_private *priv,
                                phy_interface_t phy_mode, u32 arg)
 {
@@ -1908,6 +1951,7 @@ static struct platform_driver ave_driver = {
        .remove = ave_remove,
        .driver = {
                .name = "ave",
+               .pm   = AVE_PM_OPS,
                .of_match_table = of_ave_match,
        },
 };
-- 
2.7.4