TRANSCONF_FRAME_START_DELAY_MASK
pipe_config->framestart_delay = REG_FIELD_GET(TRANSCONF_FRAME_START_DELAY_MASK, tmp) + 1;
pipe_config->framestart_delay = REG_FIELD_GET(TRANSCONF_FRAME_START_DELAY_MASK, tmp) + 1;
#define TRANSCONF_FRAME_START_DELAY(x) REG_FIELD_PREP(TRANSCONF_FRAME_START_DELAY_MASK, (x)) /* pre-hsw: 0-3 */