From 5fa9c0fe3ec0a008352d4a4fb8d972a437183404 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 27 Jun 2012 03:45:21 +0000 Subject: [PATCH] net: fec: enable regulator for fec phy If bootloader or platform initialization code does not enable the power supply to fec phy, we need to do it in fec driver before calling fec_reset_phy to have the phy powered on. Signed-off-by: Shawn Guo Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index e868a377c898..4dce9e3ac83a 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -49,6 +49,7 @@ #include #include #include +#include #include @@ -1546,6 +1547,7 @@ fec_probe(struct platform_device *pdev) const struct of_device_id *of_id; static int dev_id; struct pinctrl *pinctrl; + struct regulator *reg_phy; of_id = of_match_device(fec_dt_ids, &pdev->dev); if (of_id) @@ -1632,6 +1634,16 @@ fec_probe(struct platform_device *pdev) clk_prepare_enable(fep->clk_ahb); clk_prepare_enable(fep->clk_ipg); + reg_phy = devm_regulator_get(&pdev->dev, "phy"); + if (!IS_ERR(reg_phy)) { + ret = regulator_enable(reg_phy); + if (ret) { + dev_err(&pdev->dev, + "Failed to enable phy regulator: %d\n", ret); + goto failed_regulator; + } + } + fec_reset_phy(pdev); ret = fec_enet_init(ndev); @@ -1655,6 +1667,7 @@ failed_register: fec_enet_mii_remove(fep); failed_mii_init: failed_init: +failed_regulator: clk_disable_unprepare(fep->clk_ahb); clk_disable_unprepare(fep->clk_ipg); failed_pin: -- 2.20.1