TV_ENC_ENABLE
tv_ctl &= ~(TV_ENC_ENABLE | TV_ENC_PIPE_SEL_MASK | TV_TEST_MODE_MASK);
return tmp & TV_ENC_ENABLE;
intel_de_rmw(display, TV_CTL, 0, TV_ENC_ENABLE);
intel_de_rmw(display, TV_CTL, TV_ENC_ENABLE, 0);