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From a3fce7607afd42a82c92972122462015a03e91ba Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Wed, 12 Jan 2022 18:53:54 +0100
Subject: [PATCH] mt76: mt7915: enable radar background detection
Git-commit: a3fce7607afd42a82c92972122462015a03e91ba
Patch-mainline: v5.18-rc1
References: bsc#1209980

Notify userland the hw supports background radar/CAC detection.

Tested-by: Owen Peng <owen.peng@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/mediatek/mt76/mt7915/init.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index 5139cc9f4ac5..e908d56a9e21 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -309,6 +309,7 @@ static void
 mt7915_init_wiphy(struct ieee80211_hw *hw)
 {
 	struct mt7915_phy *phy = mt7915_hw_phy(hw);
+	struct mt76_dev *mdev = &phy->dev->mt76;
 	struct wiphy *wiphy = hw->wiphy;
 	struct mt7915_dev *dev = phy->dev;
 
@@ -337,6 +338,12 @@ mt7915_init_wiphy(struct ieee80211_hw *hw)
 	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT);
 	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HE);
 
+	if (!mdev->dev->of_node ||
+	    !of_property_read_bool(mdev->dev->of_node,
+				   "mediatek,disable-radar-background"))
+		wiphy_ext_feature_set(wiphy,
+				      NL80211_EXT_FEATURE_RADAR_BACKGROUND);
+
 	ieee80211_hw_set(hw, HAS_RATE_CONTROL);
 	ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
 	ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
-- 
2.35.3