Commit 09d4d6da authored by Mario Limonciello's avatar Mario Limonciello Committed by Felix Fietkau
Browse files

wifi: mt76: mt7921e: Set memory space enable in PCI_COMMAND if unset 



When the BIOS has been configured for Fast Boot, systems with mt7921e
have non-functional wifi.  Turning on Fast boot caused both bus master
enable and memory space enable bits in PCI_COMMAND not to get configured.

The mt7921 driver already sets bus master enable, but explicitly check
and set memory access enable as well to fix this problem.

Tested-by: default avatarAnson Tsao <anson.tsao@amd.com>
Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Acked-by: default avatarSean Wang <sean.wang@mediatek.com>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent a5af1481

drivers/net/wireless/mediatek/mt76/mt7921/pci.c

+6 −0
Original line number Diff line number Diff line
@@ -262,6 +262,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev, 
	struct mt76_dev *mdev;

	u8 features;

	int ret;

	u16 cmd;



	ret = pcim_enable_device(pdev);

	if (ret)
@@ -271,6 +272,11 @@ static int mt7921_pci_probe(struct pci_dev *pdev, 
	if (ret)

		return ret;



	pci_read_config_word(pdev, PCI_COMMAND, &cmd);

	if (!(cmd & PCI_COMMAND_MEMORY)) {

		cmd |= PCI_COMMAND_MEMORY;

		pci_write_config_word(pdev, PCI_COMMAND, cmd);

	}

	pci_set_master(pdev);



	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);