On Mon, Jun 11, 2012 at 04:35:31PM +0900, Jonghwa Lee wrote:

> +static int max77686_clk_enable(struct clk_hw *hw)

> +static void max77686_clk_disable(struct clk_hw *hw)

These need to be prepare() and unprepare() since these operations are
atomic.

> +{
> +	struct max77686_clk *max77686 = NULL;

The assignments here are redundant since you assign to the variable
immadiately.

> +	for ( i = 0; i < MAX77686_CLKS_NUM; i++) {

Coding style with ( i.