diff mbox series

wifi: mt76: mt7921: fix PCI DMA hang after reboot

Message ID a416aae35ea1a77dd0da3922de3dd295000be4ed.1676290076.git.deren.wu@mediatek.com
State New
Headers show
Series wifi: mt76: mt7921: fix PCI DMA hang after reboot | expand

Commit Message

Deren Wu Feb. 13, 2023, 12:22 p.m. UTC
mt7921 just stop some workers and clean up chip status before reboot.
In stress test, there are working activities still running at the period
of .shutdown callback and that would cause some hosts cannot recover
DMA after reboot. To avoid the floating state in reboot, we use
mt7921_pci_remove() to fully deinit all resources.

Signed-off-by: Deren Wu <deren.wu@mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index cb72ded37256..1a8a54a46dcc 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -509,17 +509,7 @@  static int mt7921_pci_resume(struct device *device)
 
 static void mt7921_pci_shutdown(struct pci_dev *pdev)
 {
-	struct mt76_dev *mdev = pci_get_drvdata(pdev);
-	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
-	struct mt76_connac_pm *pm = &dev->pm;
-
-	cancel_delayed_work_sync(&pm->ps_work);
-	cancel_work_sync(&pm->wake_work);
-
-	/* chip cleanup before reboot */
-	mt7921_mcu_drv_pmctrl(dev);
-	mt7921_dma_cleanup(dev);
-	mt7921_wfsys_reset(dev);
+	mt7921_pci_remove(pdev);
 }
 
 static DEFINE_SIMPLE_DEV_PM_OPS(mt7921_pm_ops, mt7921_pci_suspend, mt7921_pci_resume);