Missing documentation creates kernel-doc warnings, so add
the documenation.
Signed-off-by: NOm Prakash <omprakash.pal@stericsson.com>
Reviewed-by: NRabin Vincent <rabin.vincent@stericsson.com>
Reviewed-by: NJonas Aberg <jonas.aberg@stericsson.com>
Reviewed-by: NSrinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>