On Mon, Jun 18, 2012 at 08:29:41PM +0900, Sangbeom Kim wrote:

> +static int s2mps11_list_voltage(struct regulator_dev *rdev,
> +				unsigned int selector)
> +{

Please take a look at the new helper functions which have been added to
the regulator core for factoring out things like table based and linear
maps.  This and quite a bit of the rest of the code can probably be
converted to use those.

> +	case S2MPS11_AP_EN32KHZ:
> +		mask = 0x01;
> +		break;
> +	case S2MPS11_CP_EN32KHZ:
> +		mask = 0x02;
> +		break;
> +	case S2MPS11_BT_EN32KHZ:
> +		mask = 0x04;
> +		break;

Use the clk API for clocks.