From: Deren Wu deren.wu@mediatek.com
[ Upstream commit 9270270d62191b7549296721e8d5f3dc0df01563 ]
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.
Fixes: f23a0cea8bd6 ("wifi: mt76: mt7921e: add pci .shutdown() support") Signed-off-by: Deren Wu deren.wu@mediatek.com Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c index 41be108e1d5a1..bda92d8359692 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -515,17 +515,7 @@ 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);