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-rw-r--r--drivers/pci/controller/dwc/pcie-kirin.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
index e496f51e0152..74b88d158072 100644
--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -507,8 +507,12 @@ static int kirin_pcie_probe(struct platform_device *pdev)
kirin_pcie->gpio_id_reset = of_get_named_gpio(dev->of_node,
"reset-gpios", 0);
- if (kirin_pcie->gpio_id_reset < 0)
+ if (kirin_pcie->gpio_id_reset == -EPROBE_DEFER) {
+ return -EPROBE_DEFER;
+ } else if (!gpio_is_valid(kirin_pcie->gpio_id_reset)) {
+ dev_err(dev, "unable to get a valid gpio pin\n");
return -ENODEV;
+ }
ret = kirin_pcie_power_on(kirin_pcie);
if (ret)