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wifi: mt76: support power delta calculation for 5 TX paths

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One variant of MT7992 has 5 TX paths, so extend the power delta function
to support it. Also, rename nss_delta to path_delta since the value is
based on the number of TX paths rather tha the number of spatial streams.
(path delta [0.5 dBm] = 10 * log(path number) [dBm] * 2)

Co-developed-by: StanleyYP Wang <[email protected]>
Signed-off-by: StanleyYP Wang <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Shayne Chen
2025-05-21 14:44:30 +02:00
committed by Felix Fietkau
parent 36e0b90e47
commit da2c23bec4
7 changed files with 16 additions and 16 deletions
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mac80211.c
+2 -2
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@@ -1697,7 +1697,7 @@ s8 mt76_get_power_bound(struct mt76_phy *phy, s8 txpower)
int n_chains = hweight16(phy->chainmask);
txpower = mt76_get_sar_power(phy, phy->chandef.chan, txpower * 2);
txpower -= mt76_tx_power_nss_delta(n_chains);
txpower -= mt76_tx_power_path_delta(n_chains);
return txpower;
}
@@ -1713,7 +1713,7 @@ int mt76_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
return -EINVAL;
n_chains = hweight16(phy->chainmask);
delta = mt76_tx_power_nss_delta(n_chains);
delta = mt76_tx_power_path_delta(n_chains);
*dbm = DIV_ROUND_UP(phy->txpower_cur + delta, 2);
return 0;