From 0efaf31dec572d3aac4316c6d952e06d1c33adc4 Mon Sep 17 00:00:00 2001
From: Sean Wang <sean.wang@mediatek.com>
Date: Wed, 3 Nov 2021 08:05:16 +0800
Subject: [PATCH] mt76: mt7921: fix MT7921E reset failure
Git-commit: 0efaf31dec572d3aac4316c6d952e06d1c33adc4
Patch-mainline: v5.17-rc1
References: bsc#1209980
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>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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);
--
2.35.3