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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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mt7915/init.c
+2 -2
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@@ -285,7 +285,7 @@ static void __mt7915_init_txpower(struct mt7915_phy *phy,
{
struct mt7915_dev *dev = phy->dev;
int i, n_chains = hweight16(phy->mt76->chainmask);
int nss_delta = mt76_tx_power_nss_delta(n_chains);
int path_delta = mt76_tx_power_path_delta(n_chains);
int pwr_delta = mt7915_eeprom_get_power_delta(dev, sband->band);
struct mt76_power_limits limits;
@@ -305,7 +305,7 @@ static void __mt7915_init_txpower(struct mt7915_phy *phy,
target_power = mt76_get_rate_power_limits(phy->mt76, chan,
&limits,
target_power);
target_power += nss_delta;
target_power += path_delta;
target_power = DIV_ROUND_UP(target_power, 2);
chan->max_power = min_t(int, chan->max_reg_power,
target_power);