Hi,

On Wed, Dec 14, 2016 at 12:56:44AM +0100, Peter Rosin wrote:
> If the ac-detect gpio does not support interrupts, provide a fallback
> to poll the gpio at a configurable interval.
> 
> Signed-off-by: Peter Rosin <peda@axentia.se>
> ---
>
> [...]
>
> +	} else if (charger->status_gpio) {
> +		ret = of_property_read_u32(client->dev.of_node,
> +					   "poll-interval",
> +					   &charger->poll_interval);

Please use device_property_read_u32() instead.

> [...]

-- Sebastian