AT_CTRL_PRE_CHANGE_DLY_MASK
val |= FIELD_PREP(AT_CTRL_PRE_CHANGE_DLY_MASK, AT_CTRL_PRE_CHANGE_DLY);
FIELD_PREP(AT_CTRL_PRE_CHANGE_DLY_MASK, 3) |
val |= FIELD_PREP(AT_CTRL_PRE_CHANGE_DLY_MASK, AT_CTRL_PRE_CHANGE_DLY);