Commit 9300ae0c authored by Quan Zhou's avatar Quan Zhou Committed by Felix Fietkau
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wifi: mt76: mt7925: add flow to avoid chip bt function fail 



A sub-process of Wifi L0.5 reset will make chip common partition
enter low power, and have chance lead to Bluetooth host-to-chip
command timeout, modify the software flow according to the chip's
design to solve the problem.

Fixes: c948b5da ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: default avatarQuan Zhou <quan.zhou@mediatek.com>
Signed-off-by: default avatarMing Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent d8cf7e13

drivers/net/wireless/mediatek/mt76/mt7925/pci.c

+2 −0
Original line number Diff line number Diff line
@@ -386,6 +386,8 @@ static int mt7925_pci_probe(struct pci_dev *pdev, 


	dev_info(mdev->dev, "ASIC revision: %04x\n", mdev->rev);



	mt76_rmw_field(dev, MT_HW_EMI_CTL, MT_HW_EMI_CTL_SLPPROT_EN, 1);



	ret = mt792x_wfsys_reset(dev);

	if (ret)

		goto err_free_dev;

drivers/net/wireless/mediatek/mt76/mt792x_regs.h

+3 −0
Original line number Diff line number Diff line
@@ -389,6 +389,9 @@ 
#define MT_HW_CHIPID			0x70010200

#define MT_HW_REV			0x70010204



#define MT_HW_EMI_CTL			0x18011100

#define MT_HW_EMI_CTL_SLPPROT_EN	BIT(1)



#define MT_PCIE_MAC_BASE		0x10000

#define MT_PCIE_MAC(ofs)		(MT_PCIE_MAC_BASE + (ofs))

#define MT_PCIE_MAC_INT_ENABLE		MT_PCIE_MAC(0x188)