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authorFabio Estevam <fabio.estevam@freescale.com>2013-05-27 07:48:33 +0400
committerDavid S. Miller <davem@davemloft.net>2013-05-28 09:29:54 +0400
commit238f7bc74cde96e285e59a84e0c7bbd37faa8c07 (patch)
treefb6e0796574966738c80cc68cabfd00319283383 /drivers/net/ethernet/freescale
parentc55284e4ddf3779f52d730bedfa264d35d42e539 (diff)
downloadlinux-238f7bc74cde96e285e59a84e0c7bbd37faa8c07.tar.xz
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>
Diffstat (limited to 'drivers/net/ethernet/freescale')
-rw-r--r--drivers/net/ethernet/freescale/fec_main.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index cac667db61be..866b92220c15 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2044,6 +2044,9 @@ fec_suspend(struct device *dev)
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 @@ fec_resume(struct device *dev)
{
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);