diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 63 |
1 files changed, 21 insertions, 42 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 06e163706c04..6249a4ec08f0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -32,7 +32,7 @@ struct rk_priv_data { struct platform_device *pdev; int phy_iface; - char regulator[32]; + struct regulator *regulator; bool clk_enabled; bool clock_input; @@ -287,46 +287,25 @@ static int gmac_clk_enable(struct rk_priv_data *bsp_priv, bool enable) static int phy_power_on(struct rk_priv_data *bsp_priv, bool enable) { - struct regulator *ldo; - char *ldostr = bsp_priv->regulator; + struct regulator *ldo = bsp_priv->regulator; int ret; struct device *dev = &bsp_priv->pdev->dev; - if (!ldostr) { - dev_err(dev, "%s: no ldo found\n", __func__); + if (!ldo) { + dev_err(dev, "%s: no regulator found\n", __func__); return -1; } - ldo = regulator_get(NULL, ldostr); - if (!ldo) { - dev_err(dev, "\n%s get ldo %s failed\n", __func__, ldostr); + if (enable) { + ret = regulator_enable(ldo); + if (ret) + dev_err(dev, "%s: fail to enable phy-supply\n", + __func__); } else { - if (enable) { - if (!regulator_is_enabled(ldo)) { - ret = regulator_enable(ldo); - if (ret != 0) - dev_err(dev, "%s: fail to enable %s\n", - __func__, ldostr); - else - dev_info(dev, "turn on ldo done.\n"); - } else { - dev_warn(dev, "%s is enabled before enable", - ldostr); - } - } else { - if (regulator_is_enabled(ldo)) { - ret = regulator_disable(ldo); - if (ret != 0) - dev_err(dev, "%s: fail to disable %s\n", - __func__, ldostr); - else - dev_info(dev, "turn off ldo done.\n"); - } else { - dev_warn(dev, "%s is disabled before disable", - ldostr); - } - } - regulator_put(ldo); + ret = regulator_disable(ldo); + if (ret) + dev_err(dev, "%s: fail to disable phy-supply\n", + __func__); } return 0; @@ -346,14 +325,14 @@ static void *rk_gmac_setup(struct platform_device *pdev) bsp_priv->phy_iface = of_get_phy_mode(dev->of_node); - ret = of_property_read_string(dev->of_node, "phy_regulator", &strings); - if (ret) { - dev_warn(dev, "%s: Can not read property: phy_regulator.\n", - __func__); - } else { - dev_info(dev, "%s: PHY power controlled by regulator(%s).\n", - __func__, strings); - strcpy(bsp_priv->regulator, strings); + bsp_priv->regulator = devm_regulator_get_optional(dev, "phy"); + if (IS_ERR(bsp_priv->regulator)) { + if (PTR_ERR(bsp_priv->regulator) == -EPROBE_DEFER) { + dev_err(dev, "phy regulator is not available yet, deferred probing\n"); + return ERR_PTR(-EPROBE_DEFER); + } + dev_err(dev, "no regulator found\n"); + bsp_priv->regulator = NULL; } ret = of_property_read_string(dev->of_node, "clock_in_out", &strings); |