DPIO_CHV_FEEDFWD_GAIN_MASK
tmp &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN);
#define DPIO_CHV_FEEDFWD_GAIN(x) REG_FIELD_PREP(DPIO_CHV_FEEDFWD_GAIN_MASK, (x))