Commit 76d56de5 authored by Alex Chiang's avatar Alex Chiang Committed by Jesse Barnes

ACPI: export acpi_pci_root and friends

We can simplify ACPI drivers if we can tell whether a handle is an
ACPI PCI root or not.
Reviewed-by: default avatarBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: default avatarAlex Chiang <achiang@hp.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent 2547089c
......@@ -61,20 +61,6 @@ static struct acpi_driver acpi_pci_root_driver = {
},
};
struct acpi_pci_root {
struct list_head node;
struct acpi_device *device;
struct pci_bus *bus;
u16 segment;
u8 bus_nr;
u32 osc_support_set; /* _OSC state of support bits */
u32 osc_control_set; /* _OSC state of control bits */
u32 osc_control_qry; /* the latest _OSC query result */
u32 osc_queried:1; /* has _OSC control been queried? */
};
static LIST_HEAD(acpi_pci_roots);
static struct acpi_pci_driver *sub_driver;
......@@ -317,7 +303,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
return status;
}
static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
{
struct acpi_pci_root *root;
......@@ -327,6 +313,7 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
}
return NULL;
}
EXPORT_SYMBOL_GPL(acpi_pci_find_root);
struct acpi_handle_node {
struct list_head node;
......
......@@ -369,10 +369,26 @@ int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);
struct device *acpi_get_physical_device(acpi_handle);
struct acpi_pci_root {
struct list_head node;
struct acpi_device * device;
struct acpi_pci_id id;
struct pci_bus *bus;
u16 segment;
u8 bus_nr;
u32 osc_support_set; /* _OSC state of support bits */
u32 osc_control_set; /* _OSC state of control bits */
u32 osc_control_qry; /* the latest _OSC query result */
u32 osc_queried:1; /* has _OSC control been queried? */
};
/* helper */
acpi_handle acpi_get_child(acpi_handle, acpi_integer);
int acpi_is_root_bridge(acpi_handle);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
#ifdef CONFIG_PM_SLEEP
......
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