PIPE_CSC_PREOFF_HI
intel_de_read_fw(display, PIPE_CSC_PREOFF_HI(crtc->pipe));
intel_de_write_dsb(display, dsb, PIPE_CSC_PREOFF_HI(pipe),
csc->preoff[0] = intel_de_read_fw(display, PIPE_CSC_PREOFF_HI(pipe));
MMIO_D(PIPE_CSC_PREOFF_HI(PIPE_A));
MMIO_D(PIPE_CSC_PREOFF_HI(PIPE_B));
MMIO_D(PIPE_CSC_PREOFF_HI(PIPE_C));