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

From: Kunihiko Hayashi
Date: Thu Nov 29 2018 - 03:06:52 EST


This patch introduces suspend and resume functions to ave driver.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
---
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