Use devm_clk_get_optional() to get optional clock
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
        if (IS_ERR(priv->regmap))
                return PTR_ERR(priv->regmap);
 
-       priv->clk = devm_clk_get(dev, "phy");
-       if (IS_ERR(priv->clk)) {
-               ret = PTR_ERR(priv->clk);
-               if (ret == -ENOENT)
-                       priv->clk = NULL;
-               else
-                       return ret;
-       }
+       priv->clk = devm_clk_get_optional(dev, "phy");
+       if (IS_ERR(priv->clk))
+               return PTR_ERR(priv->clk);
 
        priv->reset = devm_reset_control_get_optional_shared(dev, "phy");
        if (IS_ERR(priv->reset))