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    Subject[PATCH 2/4]An implementation for binding PCI device with ACPI device
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    Hi,
    This is an implementation for binding ACPI devices with PCI devices.

    Thanks,
    Shaohua

    Signed-off-by: Li Shaohua<shaohua.li@intel.com>
    ---

    2.5-root/drivers/pci/pci-acpi.c | 46 ++++++++++++++++++++++++++++++++++++++++
    1 files changed, 46 insertions(+)

    diff -puN drivers/pci/pci-acpi.c~bind-acpi-pci drivers/pci/pci-acpi.c
    --- 2.5/drivers/pci/pci-acpi.c~bind-acpi-pci 2005-01-05 09:57:26.863944152 +0800
    +++ 2.5-root/drivers/pci/pci-acpi.c 2005-01-05 09:57:26.866943696 +0800
    @@ -207,3 +207,49 @@ acpi_status pci_osc_control_set(u32 flag
    return status;
    }
    EXPORT_SYMBOL(pci_osc_control_set);
    +
    +/* ACPI bus type */
    +int pci_acpi_bind_device(struct device *dev, acpi_handle *handle)
    +{
    + struct pci_dev * pci_dev;
    + acpi_integer addr;
    +
    + pci_dev = to_pci_dev(dev);
    + /* Please ref to ACPI spec for the syntax of _ADR */
    + addr = (PCI_SLOT(pci_dev->devfn) << 16) | PCI_FUNC(pci_dev->devfn);
    + *handle = acpi_get_child(DEVICE_ACPI_HANDLE(dev->parent), addr);
    + if (!*handle)
    + return -ENODEV;
    + return 0;
    +}
    +
    +static int pci_acpi_bind_root_bridge(struct device *dev, acpi_handle *handle)
    +{
    + int num;
    + unsigned int seg, bus;
    +
    + num = sscanf(dev->bus_id, "pci%04x:%02x", &seg, &bus);
    + if (num != 2)
    + return -ENODEV;
    + *handle = acpi_get_pci_rootbridge_handle(seg, bus);
    + if (!*handle)
    + return -ENODEV;
    + return 0;
    +}
    +
    +static struct acpi_bus_type pci_acpi_bus = {
    + .bus = &pci_bus_type,
    + .find_device = pci_acpi_bind_device,
    + .find_bridge = pci_acpi_bind_root_bridge,
    +};
    +
    +static int __init pci_acpi_init(void)
    +{
    + int ret;
    +
    + ret = register_acpi_bus_type(&pci_acpi_bus);
    + if (ret)
    + return 0;
    + return 0;
    +}
    +arch_initcall(pci_acpi_init);
    _

    An implementation for binding ACPI devices with PCI devices.

    ---

    2.5-root/drivers/pci/pci-acpi.c | 46 ++++++++++++++++++++++++++++++++++++++++
    1 files changed, 46 insertions(+)

    diff -puN drivers/pci/pci-acpi.c~bind-acpi-pci drivers/pci/pci-acpi.c
    --- 2.5/drivers/pci/pci-acpi.c~bind-acpi-pci 2005-01-05 09:57:26.863944152 +0800
    +++ 2.5-root/drivers/pci/pci-acpi.c 2005-01-05 09:57:26.866943696 +0800
    @@ -207,3 +207,49 @@ acpi_status pci_osc_control_set(u32 flag
    return status;
    }
    EXPORT_SYMBOL(pci_osc_control_set);
    +
    +/* ACPI bus type */
    +int pci_acpi_bind_device(struct device *dev, acpi_handle *handle)
    +{
    + struct pci_dev * pci_dev;
    + acpi_integer addr;
    +
    + pci_dev = to_pci_dev(dev);
    + /* Please ref to ACPI spec for the syntax of _ADR */
    + addr = (PCI_SLOT(pci_dev->devfn) << 16) | PCI_FUNC(pci_dev->devfn);
    + *handle = acpi_get_child(DEVICE_ACPI_HANDLE(dev->parent), addr);
    + if (!*handle)
    + return -ENODEV;
    + return 0;
    +}
    +
    +static int pci_acpi_bind_root_bridge(struct device *dev, acpi_handle *handle)
    +{
    + int num;
    + unsigned int seg, bus;
    +
    + num = sscanf(dev->bus_id, "pci%04x:%02x", &seg, &bus);
    + if (num != 2)
    + return -ENODEV;
    + *handle = acpi_get_pci_rootbridge_handle(seg, bus);
    + if (!*handle)
    + return -ENODEV;
    + return 0;
    +}
    +
    +static struct acpi_bus_type pci_acpi_bus = {
    + .bus = &pci_bus_type,
    + .find_device = pci_acpi_bind_device,
    + .find_bridge = pci_acpi_bind_root_bridge,
    +};
    +
    +static int __init pci_acpi_init(void)
    +{
    + int ret;
    +
    + ret = register_acpi_bus_type(&pci_acpi_bus);
    + if (ret)
    + return 0;
    + return 0;
    +}
    +arch_initcall(pci_acpi_init);
    _
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