[PATCH] mt76: mt7615: register ext_phy if DBDC is detected

[Shayne Chen]

MT_EE_WIFI_CONF field can be used to detect if the chipset is MT7615D.
Thus, add support to automatically register ext_phy if DBDC is detected.

Signed-off-by: Shayne Chen <shayne.chen at mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c   | 3 +++
 drivers/net/wireless/mediatek/mt76/mt7615/init.c     | 2 +-
 drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c | 3 +++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
index 22e4eab..4e07c7e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
@@ -125,6 +125,9 @@ mt7615_eeprom_parse_hw_band_cap(struct mt7615_dev *dev)
 	case MT_EE_2GHZ:
 		dev->mt76.cap.has_2ghz = true;
 		break;
+	case MT_EE_DBDC:
+		dev->mt76.phy2 = &dev->mphy;
+		/* fall through */
 	default:
 		dev->mt76.cap.has_2ghz = true;
 		dev->mt76.cap.has_5ghz = true;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index 3921e7e..c075006 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -384,7 +384,7 @@ int mt7615_register_ext_phy(struct mt7615_dev *dev)
 	if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state))
 		return -EINVAL;
 
-	if (phy)
+	if (phy && phy != &dev->phy)
 		return 0;
 
 	mt7615_cap_dbdc_enable(dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
index 69cba86..ec94944 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
@@ -25,6 +25,9 @@ static void mt7615_init_work(struct work_struct *work)
 	mt7615_phy_init(dev);
 	mt7615_mcu_del_wtbl_all(dev);
 	mt7615_check_offload_capability(dev);
+
+	if (dev->mt76.phy2)
+		mt7615_register_ext_phy(dev);
 }
 
 static int mt7615_init_hardware(struct mt7615_dev *dev)
-- 
2.17.1