fec: Handle the regulator in suspend/resume
In order to save power, let's disable the regulator in the suspend function and
enable it in resume.
Tested on a mx28evk board.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index cac667d..866b922 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2044,6 +2044,9 @@
clk_disable_unprepare(fep->clk_ahb);
clk_disable_unprepare(fep->clk_ipg);
+ if (fep->reg_phy)
+ regulator_disable(fep->reg_phy);
+
return 0;
}
@@ -2052,6 +2055,13 @@
{
struct net_device *ndev = dev_get_drvdata(dev);
struct fec_enet_private *fep = netdev_priv(ndev);
+ int ret;
+
+ if (fep->reg_phy) {
+ ret = regulator_enable(fep->reg_phy);
+ if (ret)
+ return ret;
+ }
clk_prepare_enable(fep->clk_enet_out);
clk_prepare_enable(fep->clk_ahb);