On Tue, Feb 13, 2018 at 04:58:22PM +0000, srinivas.kandagatla@linaro.org wrote:

> +	num_regions = is_contiguous ? 1 : periods;
> +	buf_sz = is_contiguous ? (period_sz * periods) : period_sz;

Please write normal if statements, it's much easier to read.

> +	buf_sz = PAGE_ALIGN(buf_sz);

I don't understand what this is doing, buf_sz is a length not an address
so why are we attempting to align it?