Add basic support for handling suspend and resume.
Signed-off-by: Jane Li <j...@marvell.com>
---
drivers/net/ethernet/marvell/mvneta.c | 44 +++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/drivers/net/ethernet/marvell/mvneta.c
b/drivers/net/ethernet/marvell/mvneta.c
index 61dd446..4f16342 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -4405,6 +4405,49 @@ static int mvneta_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int mvneta_suspend(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ if (netif_running(dev))
+ mvneta_stop(dev);
+ netif_device_detach(dev);
+ clk_disable_unprepare(pp->clk_bus);
+ clk_disable_unprepare(pp->clk);
+ return 0;
+}
+
+static int mvneta_resume(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+ struct mvneta_port *pp = netdev_priv(dev);
+ int err;
+
+ clk_prepare_enable(pp->clk);
+ clk_prepare_enable(pp->clk_bus);
+ mvneta_defaults_set(pp);
+ err = mvneta_port_power_up(pp, pp->phy_interface);
+ if (err < 0) {
+ dev_err(device, "can't power up port\n");
+ return err;
+ }
+
+ if (pp->use_inband_status)
+ mvneta_fixed_link_update(pp, dev->phydev);
+
+ netif_device_attach(dev);
+ if (netif_running(dev))
+ mvneta_open(dev);
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops mvneta_pm_ops = {
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(mvneta_suspend, mvneta_resume)
+};
+
static const struct of_device_id mvneta_match[] = {
{ .compatible = "marvell,armada-370-neta" },
{ .compatible = "marvell,armada-xp-neta" },
@@ -4419,6 +4462,7 @@ static int mvneta_remove(struct platform_device *pdev)
.driver = {
.name = MVNETA_DRIVER_NAME,
.of_match_table = mvneta_match,
+ .pm = &mvneta_pm_ops,
},
};
--
1.9.1
