DVSGAMCMAX_ILK
intel_de_write_fw(display, DVSGAMCMAX_ILK(pipe, 0), gamma[i]);
intel_de_write_fw(display, DVSGAMCMAX_ILK(pipe, 1), gamma[i]);
intel_de_write_fw(display, DVSGAMCMAX_ILK(pipe, 2), gamma[i]);