[PATCH AUTOSEL 5.13 132/189] mt76: mt7921: reset wfsys during hw probe
From: Sasha Levin <sashal@kernel.org>
Date: 2021-07-06 11:25:12
Also in:
linux-arm-kernel, linux-mediatek, lkml, netdev, stable
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
From: Lorenzo Bianconi <lorenzo@kernel.org> [ Upstream commit 01f7da40917923bf9d8fd8d5c9a6ed646004e47c ] This patch fixes a mcu hang during device probe on Marvell ESPRESSObin after a hot reboot. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/wireless/mediatek/mt76/mt7921/dma.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/dma.c b/drivers/net/wireless/mediatek/mt76/mt7921/dma.c
index 71e664ee7652..a70f0bd875f8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/dma.c@@ -402,6 +402,10 @@ int mt7921_dma_init(struct mt7921_dev *dev) if (ret) return ret; + ret = mt7921_wfsys_reset(dev); + if (ret) + return ret; + /* init tx queue */ ret = mt7921_init_tx_queues(&dev->phy, MT7921_TXQ_BAND0, MT7921_TX_RING_SIZE);
--
2.30.2