> +static struct pch_gbe_privdata * > +pch_gbe_get_priv(struct pci_dev *pdev, const struct pci_device_id *pci_id) > +{ > + struct pch_gbe_privdata *pdata; > + struct gpio_desc *gpio; > + > + if (!IS_ENABLED(CONFIG_OF)) > + return (struct pch_gbe_privdata *)pci_id->driver_data; It is possible to enable CONFIG_OF on all architectures, including x86 used by Minnow. If somebody was to do this, i think Minnow breaks. What i think you really want is: if pci_id->driver_data; return (struct pch_gbe_privdata *)pci_id->driver_data; > + > + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return ERR_PTR(-ENOMEM); > + > + gpio = devm_gpiod_get(&pdev->dev, "phy-reset", GPIOD_ASIS); > + if (!IS_ERR(gpio)) > + pdata->phy_reset_gpio = gpio; > + else if (PTR_ERR(gpio) != -ENOENT) > + return ERR_CAST(gpio); > + > + return pdata; > +} There should not be a need to protect for !CONFIG_OF, and devm_gpiod_get() knows how to look in ACPI tables, if an intel or ARM64 platform it using that to list its GPIOs. Andrew