mt76: explicitly disable energy detect cca during scan

Avoid reusing the previous channel's tx blocking state
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/phy.c

@@ -1006,14 +1006,16 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
 
 	/* enable vco */
 	mt76x0_rf_set(dev, MT_RF(0, 4), BIT(7));
-	if (scan)
+	if (scan) {
+		mt76x02_edcca_init(dev, false);
 		return 0;
+	}
 
 	mt76x02_init_agc_gain(dev);
 	mt76x0_phy_calibrate(dev, false);
 	mt76x0_phy_set_txpower(dev);
 
-	mt76x02_edcca_init(dev);
+	mt76x02_edcca_init(dev, true);
 
 	ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
 				     MT_CALIBRATE_INTERVAL);

drivers/net/wireless/mediatek/mt76/mt76x02_dfs.c

@@ -886,7 +886,7 @@ mt76x02_dfs_set_domain(struct mt76x02_dev *dev,
 		tasklet_disable(&dfs_pd->dfs_tasklet);
 
 		dev->ed_monitor = region == NL80211_DFS_ETSI;
-		mt76x02_edcca_init(dev);
+		mt76x02_edcca_init(dev, true);
 
 		dfs_pd->region = region;
 		mt76x02_dfs_init_params(dev);

drivers/net/wireless/mediatek/mt76/mt76x02_mac.c

@@ -891,12 +891,12 @@ mt76x02_edcca_tx_enable(struct mt76x02_dev *dev, bool enable)
 	dev->ed_tx_blocked = !enable;
 }
 
-void mt76x02_edcca_init(struct mt76x02_dev *dev)
+void mt76x02_edcca_init(struct mt76x02_dev *dev, bool enable)
 {
 	dev->ed_trigger = 0;
 	dev->ed_silent = 0;
 
-	if (dev->ed_monitor) {
+	if (dev->ed_monitor && enable) {
 		struct ieee80211_channel *chan = dev->mt76.chandef.chan;
 		u8 ed_th = chan->band == NL80211_BAND_5GHZ ? 0x0e : 0x20;
 

drivers/net/wireless/mediatek/mt76/mt76x02_mac.h

@@ -207,5 +207,5 @@ int mt76x02_mac_set_beacon(struct mt76x02_dev *dev, u8 vif_idx,
 void mt76x02_mac_set_beacon_enable(struct mt76x02_dev *dev,
 				   struct ieee80211_vif *vif, bool val);
 
-void mt76x02_edcca_init(struct mt76x02_dev *dev);
+void mt76x02_edcca_init(struct mt76x02_dev *dev, bool enable);
 #endif

drivers/net/wireless/mediatek/mt76/mt76x2/pci_phy.c

@@ -240,8 +240,10 @@ int mt76x2_phy_set_channel(struct mt76x02_dev *dev,
 	mt76_wr(dev, MT_BBP(AGC, 2), 0x00007070);
 	mt76_wr(dev, MT_TXOP_CTRL_CFG, 0x04101B3F);
 
-	if (scan)
+	if (scan) {
+		mt76x02_edcca_init(dev, false);
 		return 0;
+	}
 
 	mt76x2_phy_channel_calibrate(dev, true);
 	mt76x02_init_agc_gain(dev);
@@ -254,7 +256,7 @@ int mt76x2_phy_set_channel(struct mt76x02_dev *dev,
 			       0x38);
 	}
 
-	mt76x02_edcca_init(dev);
+	mt76x02_edcca_init(dev, true);
 
 	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
 				     MT_CALIBRATE_INTERVAL);