diff --git a/drivers/pci/controller/dwc/pcie-dw-rockchip.c b/drivers/pci/controller/dwc/pcie-dw-rockchip.c
index d5b785272fde..c03fa51e8c04 100644
--- a/drivers/pci/controller/dwc/pcie-dw-rockchip.c
+++ b/drivers/pci/controller/dwc/pcie-dw-rockchip.c
@@ -1234,6 +1234,7 @@ static int rk_pcie_init_irq_domain(struct rk_pcie *rockchip)
 		return -EINVAL;
 	}
 
+	raw_spin_lock_init(&rockchip->intx_lock);
 	rockchip->irq_domain = irq_domain_add_linear(intc, PCI_NUM_INTX,
 						     &intx_domain_ops, rockchip);
 	if (!rockchip->irq_domain) {