On Mon, Dec 08, 2014 at 09:49:51AM +0000, Zidan Wang wrote:
> So I should move mclk to wm8960_priv. 
> And doing wm8960_priv->mclk = devm_clk_get(&i2c->dev, "codec_mclk") in wm8960_i2c_probe.

Yes, please.