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 <[email protected]> --- drivers/net/ethernet/freescale/fec.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index e868a37..4dce9e3 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -49,6 +49,7 @@ #include <linux/of_gpio.h> #include <linux/of_net.h> #include <linux/pinctrl/consumer.h> +#include <linux/regulator/consumer.h> #include <asm/cacheflush.h> @@ -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: -- 1.7.5.4 _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
