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Subject: [PATCH] mt76: mt7921: fix MT7921E reset failure
Date:   Wed, 3 Nov 2021 08:05:16 +0800
Message-ID: <2932b5b4f3ab1604971ca93d2e3bc483ceb6a46a.1635897433.git.objelf@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

From: Sean Wang <sean.wang@mediatek.com>

There is a missing mt7921e_driver_own in the MT7921E reset procedure
since the mt7921 mcu.c has been refactored for MT7921S, that will
result in MT7921E reset failure, so add it back now.

Fixes: dfc7743de1eb ("mt76: mt7921: refactor mcu.c to be bus independent")
Reported-by: YN Chen <YN.Chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h  | 1 +
 drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c | 4 ++++
 drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c | 2 +-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index e9c7c3a19507..d6b823713ba3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -446,6 +446,7 @@ int mt7921_mcu_restart(struct mt76_dev *dev);
 
 void mt7921e_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
 			  struct sk_buff *skb);
+int mt7921e_driver_own(struct mt7921_dev *dev);
 int mt7921e_mac_reset(struct mt7921_dev *dev);
 int mt7921e_mcu_init(struct mt7921_dev *dev);
 int mt7921s_wfsys_reset(struct mt7921_dev *dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
index f9547d27356e..85286cc9add1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
@@ -321,6 +321,10 @@ int mt7921e_mac_reset(struct mt7921_dev *dev)
 		MT_INT_MCU_CMD);
 	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
 
+	err = mt7921e_driver_own(dev);
+	if (err)
+		return err;
+
 	err = mt7921_run_firmware(dev);
 	if (err)
 		goto out;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c
index 583a89a34734..7b34c7f2ab3a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c
@@ -4,7 +4,7 @@
 #include "mt7921.h"
 #include "mcu.h"
 
-static int mt7921e_driver_own(struct mt7921_dev *dev)
+int mt7921e_driver_own(struct mt7921_dev *dev)
 {
 	u32 reg = mt7921_reg_map_l1(dev, MT_TOP_LPCR_HOST_BAND0);
 
-- 
2.25.1