CGM_PIPE_DEGAMMA_BLUE_LDW_MASK
REG_FIELD_PREP(CGM_PIPE_DEGAMMA_BLUE_LDW_MASK, drm_color_lut_extract(color->blue, 14));
entry->blue = intel_color_lut_pack(REG_FIELD_GET(CGM_PIPE_DEGAMMA_BLUE_LDW_MASK, ldw), 14);