From 5db4943a9d6fc6bf1b04f80416236594713067b4 Mon Sep 17 00:00:00 2001 From: Guo-Feng Fan Date: Wed, 22 Sep 2021 10:36:37 +0800 Subject: rtw88: 8821c: correct 2.4G tx power for type 2/4 NIC 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 Signed-off-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20210922023637.9357-2-pkshih@realtek.com --- drivers/net/wireless/realtek/rtw88/rtw8821c.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net/wireless/realtek/rtw88/rtw8821c.c') 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); -- cgit v1.2.3