[PATCH] mt76: mt7915: fix DFS no radar detection event

[Evelyn Tsai <evelyn.tsai@xxxxxxxxxxxx>]

Driver needs to carry region definition when radar detection starts.
Need to remap nl80211 DFS regions to chip region definition.

Signed-off-by: Evelyn Tsai <evelyn.tsai@xxxxxxxxxxxx>
Signed-off-by: Rubio Lu <Rubio-DW.Lu@xxxxxxxxxxxx>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 1da551f0b389..a99079313ac2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -2364,10 +2364,23 @@ static void mt7915_dfs_stop_radar_detector(struct mt7915_phy *phy)
 
 static int mt7915_dfs_start_rdd(struct mt7915_dev *dev, int chain)
 {
-	int err;
+	int err, region;
+
+	switch (dev->mt76.region) {
+	case NL80211_DFS_ETSI:
+		region = 0;
+		break;
+	case NL80211_DFS_JP:
+		region = 2;
+		break;
+	case NL80211_DFS_FCC:
+	default:
+		region = 1;
+		break;
+	}
 
 	err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_START, chain,
-				      MT_RX_SEL0, 0);
+				      MT_RX_SEL0, region);
 	if (err < 0)
 		return err;
 
-- 
2.18.0