diff mbox series

[13/14] rtw88: fix NSS of hw_cap

Message ID 20191002063531.18135-14-yhchuang@realtek.com (mailing list archive)
State Accepted
Commit 4f5bb7ff8b8d4bafd91243fc969ed240e67aa1ca
Delegated to: Kalle Valo
Headers show
Series rtw88: add software TX queue support | expand

Commit Message

Tony Chuang Oct. 2, 2019, 6:35 a.m. UTC 
From: Ping-Ke Shih <pkshih@realtek.com>

8822C is a 2x2 11ac chip, and then NSS must be less or equal to 2. However,
current nss of hw cap is 3, likes
	hw cap: hci=0x0f, bw=0x07, ptcl=0x03, ant_num=7, nss=3

This commit adds constraint to make sure NSS <= rf_path_num, and result
looks like
	hw cap: hci=0x0f, bw=0x07, ptcl=0x03, ant_num=7, nss=2

Fixes: e3037485c68e ("rtw88: new Realtek 802.11ac driver")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
---
 drivers/net/wireless/realtek/rtw88/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index f7044e8bcb5b..bd2d3f9bc049 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1077,7 +1077,8 @@  static int rtw_dump_hw_feature(struct rtw_dev *rtwdev)
 
 	rtw_hw_config_rf_ant_num(rtwdev, efuse->hw_cap.ant_num);
 
-	if (efuse->hw_cap.nss == EFUSE_HW_CAP_IGNORE)
+	if (efuse->hw_cap.nss == EFUSE_HW_CAP_IGNORE ||
+	    efuse->hw_cap.nss > rtwdev->hal.rf_path_num)
 		efuse->hw_cap.nss = rtwdev->hal.rf_path_num;
 
 	rtw_dbg(rtwdev, RTW_DBG_EFUSE,