mdp4_enable_vblank  193 drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c 		.enable_vblank   = mdp4_enable_vblank,
mdp4_enable_vblank  164 drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.h int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);