diff mbox series

[2/2] rtw88: 8821c: correct 2.4G tx power for type 2/4 NIC

Message ID 20210922023637.9357-2-pkshih@realtek.com (mailing list archive)
State Accepted
Commit 5db4943a9d6fc6bf1b04f80416236594713067b4
Delegated to: Kalle Valo
Headers show
Series [1/2] rtw88: 8821c: support RFE type4 wifi NIC | expand

Commit Message

Ping-Ke Shih Sept. 22, 2021, 2:36 a.m. UTC 
From: Guo-Feng Fan <vincent_fann@realtek.com>

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@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw88/rtw8821c.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

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);