NB_CRTC            40 drivers/gpu/drm/stm/ltdc.c #define CRTC_MASK GENMASK(NB_CRTC - 1, 0)
NB_CRTC          1272 drivers/gpu/drm/stm/ltdc.c 	ret = drm_vblank_init(ddev, NB_CRTC);