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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>
This commit is contained in:
Fabio Estevam 2013-05-27 03:48:33 +00:00 committed by David S. Miller
parent c55284e4dd
commit 238f7bc74c
1 changed files with 10 additions and 0 deletions
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10
drivers/net/ethernet/freescale/fec_main.c
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@ -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);