tree 1adfcabd70bfe4e1f331d57a2ccfe3acfb3ca3df
parent 11b34d6eade7f71343f331f81a651b3788d0e533
author Mateusz Kulikowski <mateusz.kulikowski@gmail.com> 1453546469 +0100
committer Tom Rini <trini@konsulko.com> 1453736387 -0500

lib: Add wait_for_bit

Add function to poll register waiting for specific bit(s).
Similar functions are implemented in few drivers - they are almost
identical and can be generalized.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>