CM2_LUT_SIZE
for (i = 0; i < CM2_LUT_SIZE; ++i) {
drm_mode_crtc_set_gamma_size(crtc, CM2_LUT_SIZE);
drm_crtc_enable_color_mgmt(crtc, 0, false, CM2_LUT_SIZE);
if (drm_color_lut_size(drm_lut) != CM2_LUT_SIZE) {