From: Wen Gong <wgong@xxxxxxxxxxxxxx> WCN6855 uses single_pdev_only, so it supports both the 5G and 6G bands in the same ath11k/pdev and it needs to enable ht_cap/vht_cap for the 5G band, otherwise it will downgrade to non-HT mode for the 5G band. Some chips like QCN9074 only support the 6G band, not the 5G band, and use the flag ar->supports_6ghz which is true to discard ht_cap/vht_cap. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Wen Gong <wgong@xxxxxxxxxxxxxx> Signed-off-by: Jouni Malinen <jouni@xxxxxxxxxxxxxx> --- drivers/net/wireless/ath/ath11k/mac.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 133ecb351365..c83a968fc7ba 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -4491,7 +4491,9 @@ static void ath11k_mac_setup_ht_vht_cap(struct ath11k *ar, rate_cap_rx_chainmask); } - if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP && !ar->supports_6ghz) { + if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP && + (ar->ab->hw_params.single_pdev_only || + !ar->supports_6ghz)) { band = &ar->mac.sbands[NL80211_BAND_5GHZ]; ht_cap = cap->band[NL80211_BAND_5GHZ].ht_cap_info; if (ht_cap_info) -- 2.25.1