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Merge branch 'remotes/lorenzo/pci/kirin'

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- Return -EPROBE_DEFER in case the gpio isn't ready (Bean Huo)

* remotes/lorenzo/pci/kirin:
  PCI: kirin: Return -EPROBE_DEFER in case the gpio isn't ready
This commit is contained in:
Bjorn Helgaas 2020-10-21 09:58:41 -05:00
commit 29828fc20a
1 changed files with 5 additions and 1 deletions
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6
drivers/pci/controller/dwc/pcie-kirin.c
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@ -508,8 +508,12 @@ 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)