On Fri, Dec 19, 2014 at 04:18:08PM +0000, Andrew Jackson wrote:

 	if (IS_ERR(dev->clk))
-		return  PTR_ERR(dev->clk);
+		return PTR_ERR(dev->clk);
+
+	ret = clk_prepare(dev->clk);
+	if (ret < 0)
+		goto err_clk_put;

This isn't adding device tree support, it's adding use of clk_prepare()
which is a separate change and is normally better done by converting to
use clk_prepare_enable().
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