From 238f7bc74cde96e285e59a84e0c7bbd37faa8c07 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 27 May 2013 03:48:33 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec_main.c | 10 ++++++++++ 1 file changed, 10 insertions(+) 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); -- GitLab