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mt76: mt7915: add support for DT rate power limits 

Enable to limit per-rate max txpower from DT.

Tested-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Shayne Chen 2021-04-17 06:16:17 +08:00 committed by Felix Fietkau
parent e513ae4908
commit 790d228a68
1 changed files with 38 additions and 6 deletions
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44
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
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@ -3517,15 +3517,47 @@ int mt7915_mcu_set_sku(struct mt7915_phy *phy)
.format_id = 4,
.dbdc_idx = phy != &dev->phy,
};
int i;
s8 *delta;
struct mt76_power_limits limits_array;
s8 *delta, *la = (s8 *)&limits_array;
int i, idx, n_chains = hweight8(mphy->antenna_mask);
int tx_power;
delta = dev->rate_power[mphy->chandef.chan->band];
mphy->txpower_cur = hw->conf.power_level * 2 +
delta[MT7915_SKU_MAX_DELTA_IDX];
tx_power = hw->conf.power_level * 2 -
mt76_tx_power_nss_delta(n_chains);
for (i = 0; i < MT7915_SKU_RATE_NUM; i++)
req.val[i] = hw->conf.power_level * 2 + delta[i];
tx_power = mt76_get_rate_power_limits(mphy, mphy->chandef.chan,
&limits_array, tx_power);
mphy->txpower_cur = tx_power;
for (i = 0, idx = 0; i < MAX_SKU_RATE_GROUP_NUM; i++) {
const struct sku_group *sku = &mt7915_sku_groups[i];
u32 offset = sku->offset[mphy->chandef.chan->band];
u8 mcs_num = sku->len;
int j;
if (i >= SKU_HT_BW20 && i <= SKU_VHT_BW160) {
mcs_num = 10;
if (i == SKU_HT_BW20 || i == SKU_VHT_BW20)
la = (s8 *)&limits_array + 12;
}
if (!offset) {
idx += sku->len;
la += mcs_num;
continue;
}
for (j = 0; j < min_t(u8, mcs_num, sku->len); j++) {
s8 rate_power;
rate_power = hw->conf.power_level * 2 + delta[idx + j];
req.val[idx + j] = min_t(s8, la[j], rate_power);
}
la += mcs_num;
idx += sku->len;
}
return mt76_mcu_send_msg(&dev->mt76,
MCU_EXT_CMD(TX_POWER_FEATURE_CTRL), &req,