CHV_BUFRIGHTENA2_MASK
val &= ~(CHV_BUFLEFTENA2_MASK | CHV_BUFRIGHTENA2_MASK);
val &= ~(CHV_BUFLEFTENA2_MASK | CHV_BUFRIGHTENA2_MASK);
#define CHV_BUFRIGHTENA2_DISABLE REG_FIELD_PREP(CHV_BUFRIGHTENA2_MASK, 0)
#define CHV_BUFRIGHTENA2_NORMAL REG_FIELD_PREP(CHV_BUFRIGHTENA2_MASK, 1)
#define CHV_BUFRIGHTENA2_FORCE REG_FIELD_PREP(CHV_BUFRIGHTENA2_MASK, 3)