__get_pipe
index = __get_pipe(path->mdp_dev, path->comps[0].comp->public_id);
pipe_id = __get_pipe(mdp, cmd->comps[0].public_id);
pipe_id = __get_pipe(mdp, cmd->comps[0].public_id);
pipe_id = __get_pipe(mdp, path->comps[0].comp->public_id);