TVDAC_STATE_CHG_EN
tv_dac |= (TVDAC_STATE_CHG_EN |
tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
intel_de_write(display, TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
intel_de_write(display, TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
intel_de_write(display, TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
(tv_dac_off & TVDAC_STATE_CHG_EN) != 0)