linux-imx

// SPDX-License-Identifier: GPL-2.0

#include <linux/pci.h>

#include <linux/module.h>

#include "pci.h"

​

static void pci_free_resources(struct pci_dev *dev)

{

    int i;

​

    for (i = 0; i < PCI_NUM_RESOURCES; i++) {

        struct resource *res = dev->resource + i;

        if (res->parent)

            release_resource(res);

    }

}

​

static void pci_stop_dev(struct pci_dev *dev)

{

    pci_pme_active(dev, false);

​

    if (pci_dev_is_added(dev)) {

        device_release_driver(&dev->dev);

        pci_proc_detach_device(dev);

        pci_remove_sysfs_dev_files(dev);

​

        pci_dev_assign_added(dev, false);

    }

}

​

static void pci_destroy_dev(struct pci_dev *dev)

{

    if (!dev->dev.kobj.parent)

        return;

​

    device_del(&dev->dev);

​

    down_write(&pci_bus_sem);

    list_del(&dev->bus_list);

    up_write(&pci_bus_sem);

​

    pcie_aspm_exit_link_state(dev);

    pci_bridge_d3_update(dev);

    pci_free_resources(dev);

    put_device(&dev->dev);

}

​

void pci_remove_bus(struct pci_bus *bus)

{

    pci_proc_detach_bus(bus);

​

    down_write(&pci_bus_sem);

    list_del(&bus->node);

    pci_bus_release_busn_res(bus);

    up_write(&pci_bus_sem);

    pci_remove_legacy_files(bus);

​

    if (bus->ops->remove_bus)

        bus->ops->remove_bus(bus);

​

    pcibios_remove_bus(bus);

    device_unregister(&bus->dev);

}

EXPORT_SYMBOL(pci_remove_bus);