[PATCH 1/6] wifi: rtw88: 8812a, 8814a: enable STBC for HT transmissions
From: Ho Jie Feng
Date: Thu Oct 29 2026 - 01:52:48 EST
8812a and 8814a support STBC, enable it.
Signed-off-by: Ho Jie Feng <hjf3108@xxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/main.c | 2 +-
drivers/net/wireless/realtek/rtw88/rtw8812a.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8814a.c | 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 0f23498b5c96e..f7d7b66844862 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1585,7 +1585,7 @@ static void rtw_init_ht_cap(struct rtw_dev *rtwdev,
if (rtw_chip_has_rx_ldpc(rtwdev))
ht_cap->cap |= IEEE80211_HT_CAP_LDPC_CODING;
- if (rtw_chip_has_tx_stbc(rtwdev))
+ if (rtw_chip_has_tx_stbc(rtwdev) && rtwdev->hal.rf_path_num > 1)
ht_cap->cap |= IEEE80211_HT_CAP_TX_STBC;
if (efuse->hw_cap.bw & BIT(RTW_CHANNEL_WIDTH_40))
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8812a.c b/drivers/net/wireless/realtek/rtw88/rtw8812a.c
index 781b66ccde675..55f1d3d3240be 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8812a.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8812a.c
@@ -1077,6 +1077,7 @@ const struct rtw_chip_info rtw8812a_hw_spec = {
.rfe_defs = rtw8812a_rfe_defs,
.rfe_defs_size = ARRAY_SIZE(rtw8812a_rfe_defs),
.rx_ldpc = false,
+ .tx_stbc = true,
.amsdu_in_ampdu = true,
.hw_feature_report = false,
.c2h_ra_report_size = 4,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8814a.c b/drivers/net/wireless/realtek/rtw88/rtw8814a.c
index fa02aa299b5e9..5bb55606f14a1 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8814a.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8814a.c
@@ -2200,6 +2200,7 @@ const struct rtw_chip_info rtw8814a_hw_spec = {
.txgi_factor = 1,
.is_pwr_by_rate_dec = true,
.rx_ldpc = true,
+ .tx_stbc = true,
.max_power_index = 0x3f,
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_2,
.amsdu_in_ampdu = false, /* RX speed is better without AMSDU */
--
2.55.0