'phy_power_on' is a local scope one within the driver, since the return value of the phy_power_on() function is always 0, checking its return value is redundant. the function name 'phy_power_on()' conflicts with the existing phy_power_on() function in the PHY subsystem. a suitable alternative name would be rk_phy_power_set(), particularly since when the second argument is false, this function actually powers off the PHY Signed-off-by: Lizhe --- drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 51ea0caf16c1..9d296bfab013 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -1461,23 +1461,18 @@ static int gmac_clk_enable(struct rk_priv_data *bsp_priv, bool enable) return 0; } -static int phy_power_on(struct rk_priv_data *bsp_priv, bool enable) +static void rk_phy_power_on(struct rk_priv_data *bsp_priv, bool enable) { struct regulator *ldo = bsp_priv->regulator; struct device *dev = bsp_priv->dev; - int ret; if (enable) { - ret = regulator_enable(ldo); - if (ret) + if (regulator_enable(ldo)) dev_err(dev, "fail to enable phy-supply\n"); } else { - ret = regulator_disable(ldo); - if (ret) + if (regulator_disable(ldo)) dev_err(dev, "fail to disable phy-supply\n"); } - - return 0; } static struct rk_priv_data *rk_gmac_setup(struct platform_device *pdev, @@ -1655,11 +1650,7 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv) dev_err(dev, "NO interface defined!\n"); } - ret = phy_power_on(bsp_priv, true); - if (ret) { - gmac_clk_enable(bsp_priv, false); - return ret; - } + rk_phy_power_on(bsp_priv, true); pm_runtime_get_sync(dev); -- 2.17.1