From: Guo-Feng Fan <vincent_fann@xxxxxxxxxxx>
NIC card saves calibrated TX power index in the efuse(ROM).
Driver loads TX power idex when interface is up.
The problem is type2/4 NICs loads 2.4G TX power index
from wrong position. This patch corrects the offsets.
So, driver loads real 2.4G TX power index for type 2/4 NICs.
2.4G performance increased when using correct TX power index.
Signed-off-by: Guo-Feng Fan <vincent_fann@xxxxxxxxxxx>
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/rtw8821c.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
index 3effdf902f22..80a6f4da6acd 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
@@ -61,6 +61,9 @@ static int rtw8821c_read_efuse(struct rtw_dev *rtwdev, u8 *log_map)
for (i = 0; i < 4; i++)
efuse->txpwr_idx_table[i] = map->txpwr_idx_table[i];
+ if (rtwdev->efuse.rfe_option == 2 || rtwdev->efuse.rfe_option == 4)
+ efuse->txpwr_idx_table[0].pwr_idx_2g = map->txpwr_idx_table[1].pwr_idx_2g;
+
switch (rtw_hci_type(rtwdev)) {
case RTW_HCI_TYPE_PCIE:
rtw8821ce_efuse_parsing(efuse, map);
--
2.25.1
