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mt76: generalize mt76_get_txpower for 4x4:4 devices

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Genralize mt76_get_txpower routine for 4x4:4 capable devices
in order to be reused in mt7615 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2019-05-26 16:05:10 +02:00 committed by Felix Fietkau
parent c988a77f1d
commit c19b0ca503
1 changed files with 13 additions and 2 deletions
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15
drivers/net/wireless/mediatek/mt76/mac80211.c
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@ -766,10 +766,21 @@ int mt76_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
*dbm = DIV_ROUND_UP(dev->txpower_cur, 2);
/* convert from per-chain power to combined
* output on 2x2 devices
* output power
*/
if (n_chains > 1)
switch (n_chains) {
case 4:
*dbm += 6;
break;
case 3:
*dbm += 4;
break;
case 2:
*dbm += 3;
break;
default:
break;
}
return 0;
}