DAC_PSEUDO8_16
[DAC_RGB0888_8] = 0x41, [DAC_PSEUDO8_16] = 0x11, [DAC_RGB1555_16] = 0x31,
int rv = svga_compute_pll((DAC_PAR(info)->mode == DAC_PSEUDO8_16)
dac_set_mode(par->dac, DAC_PSEUDO8_16);