diff --git a/drivers/net/wwan/t7xx/t7xx_pci.c b/drivers/net/wwan/t7xx/t7xx_pci.c
index 871f2a27a398a34568980ab0d3b142e2e5cb6876..226fc1703e90f2d56728cfbf73b64c9f5bf49849 100644
--- a/drivers/net/wwan/t7xx/t7xx_pci.c
+++ b/drivers/net/wwan/t7xx/t7xx_pci.c
@@ -121,6 +121,8 @@ void t7xx_pci_pm_init_late(struct t7xx_pci_dev *t7xx_dev)
 	iowrite32(T7XX_L1_BIT(0), IREG_BASE(t7xx_dev) + ENABLE_ASPM_LOWPWR);
 	atomic_set(&t7xx_dev->md_pm_state, MTK_PM_RESUMED);
 
+	pm_runtime_mark_last_busy(&t7xx_dev->pdev->dev);
+	pm_runtime_allow(&t7xx_dev->pdev->dev);
 	pm_runtime_put_noidle(&t7xx_dev->pdev->dev);
 }