HSW_FRAME_START_DELAY_MASK
HSW_FRAME_START_DELAY_MASK,
pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
#define HSW_FRAME_START_DELAY(x) REG_FIELD_PREP(HSW_FRAME_START_DELAY_MASK, x)