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Commit 238f7bc7 authored by Fabio Estevam's avatar Fabio Estevam Committed by David S. Miller
Browse files

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: default avatarFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c55284e4

drivers/net/ethernet/freescale/fec_main.c

+10 −0
Original line number Original line Diff line number Diff line
@@ -2044,6 +2044,9 @@ fec_suspend(struct device *dev) 
	clk_disable_unprepare(fep->clk_ahb);

	clk_disable_unprepare(fep->clk_ahb);

	clk_disable_unprepare(fep->clk_ipg);

	clk_disable_unprepare(fep->clk_ipg);





	if (fep->reg_phy)

		regulator_disable(fep->reg_phy);



	return 0;

	return 0;

}

}
@@ -2052,6 +2055,13 @@ fec_resume(struct device *dev) 
{

{

	struct net_device *ndev = dev_get_drvdata(dev);

	struct net_device *ndev = dev_get_drvdata(dev);

	struct fec_enet_private *fep = netdev_priv(ndev);

	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_enet_out);

	clk_prepare_enable(fep->clk_ahb);

	clk_prepare_enable(fep->clk_ahb);