LVDS_A3_POWER_MASK
if ((REG_READ(LVDS) & LVDS_A3_POWER_MASK) == LVDS_A3_POWER_UP)
lvds_encoder->a3_power = lvds & LVDS_A3_POWER_MASK;
temp &= ~LVDS_A3_POWER_MASK;
#define LVDS_A3_POWER_DOWN REG_FIELD_PREP(LVDS_A3_POWER_MASK, 0)
#define LVDS_A3_POWER_UP REG_FIELD_PREP(LVDS_A3_POWER_MASK, 3)