rtw88: single rf path chips don't support TX STBC

Since single rf path chips don't support TX SPBC, tell mac80211
to not advertise it.

Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603094218.19942-5-yhchuang@realtek.com

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index d5677f94170f6b2e122fcddaf106f016b88e3530..9992f56ff6243dc65d2e7bc24cbc12daaa9978d6 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -989,12 +989,12 @@ static void rtw_init_vht_cap(struct rtw_dev *rtwdev,
        vht_cap->vht_supported = true;
        vht_cap->cap = IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
                       IEEE80211_VHT_CAP_SHORT_GI_80 |
-                      IEEE80211_VHT_CAP_TXSTBC |
                       IEEE80211_VHT_CAP_RXSTBC_1 |
                       IEEE80211_VHT_CAP_HTC_VHT |
                       IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
                       0;
-
+       if (rtwdev->hal.rf_path_num > 1)
+               vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC;
        vht_cap->cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
                        IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
        vht_cap->cap |= (rtwdev->hal.bfee_sts_cap <<