[PATCH 16/33][SRU][OEM-5.13] ath11k: re-enable ht_cap/vht_cap for 5G band for WCN6855

You-Sheng Yang vicamo.yang at canonical.com
Tue Oct 19 16:25:31 UTC 2021

From: Wen Gong <wgong at codeaurora.org>

BugLink: https://bugs.launchpad.net/bugs/1939528

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 at codeaurora.org>
Signed-off-by: Jouni Malinen <jouni at codeaurora.org>
Signed-off-by: Kalle Valo <kvalo at codeaurora.org>
Link: https://lore.kernel.org/r/20210804181217.88751-2-jouni@codeaurora.org
(cherry picked from commit 54f40f552afd5a07e635a52221ec4b0ce765c374)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
 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 bcfb14dac6c58..9808b663b3644 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -3811,7 +3811,9 @@ static void ath11k_mac_setup_ht_vht_cap(struct ath11k *ar,
-	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)

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