Support basic system-wide suspend and resume functions
Signed-off-by: Andy Chiu <andy.chiu@xxxxxxxxxx>
---
.../net/ethernet/xilinx/xilinx_axienet_main.c | 36 +++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 441e1058104f..d082f2b10f4d 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -2217,12 +2217,48 @@ static void axienet_shutdown(struct platform_device *pdev)
rtnl_unlock();
}
+static int axienet_suspend(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+
+ if (!netif_running(ndev))
+ return 0;
+
+ netif_device_detach(ndev);
+
+ rtnl_lock();
+ axienet_stop(ndev);
+ rtnl_unlock();
+
+ return 0;
+}
+
+static int axienet_resume(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+
+ if (!netif_running(ndev))
+ return 0;
+
+ rtnl_lock();
+ axienet_open(ndev);
+ rtnl_unlock();
+
+ netif_device_attach(ndev);
+
+ return 0;
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(axienet_pm_ops,
+ axienet_suspend, axienet_resume);
+
static struct platform_driver axienet_driver = {
.probe = axienet_probe,
.remove = axienet_remove,
.shutdown = axienet_shutdown,
.driver = {
.name = "xilinx_axienet",
+ .pm = &axienet_pm_ops,
.of_match_table = axienet_of_match,
},
};
--
2.36.0
