calc_phase_step 655 drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c ret = calc_phase_step(src, dest, &phasex_step); calc_phase_step 678 drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c ret = calc_phase_step(src, dest, &phasey_step);