INT_TO_Q52
if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
max_pwr = INT_TO_Q52(20); /* fake it */
desired_pwr = INT_TO_Q52(0);
desired_pwr = INT_TO_Q52(phy->desired_txpower);
max = INT_TO_Q52(phy->chandef->chan->max_power);
max = min_t(u8, max, INT_TO_Q52(phy->desired_txpower));
b43_ppr_apply_min(dev, ppr, INT_TO_Q52(8));