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ACPI: export acpi_pci_root and friends

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We can simplify ACPI drivers if we can tell whether a handle is an
ACPI PCI root or not.

Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Alex Chiang
2009-07-23 17:03:00 -06:00
committed by Jesse Barnes
parent 2547089ca2
commit 76d56de57a
2 changed files with 18 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/acpi/pci_root.c
View File

@@ -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 LIST_HEAD(acpi_pci_roots);
static struct acpi_pci_driver *sub_driver; 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; 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; struct acpi_pci_root *root;
@@ -327,6 +313,7 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
} }
return NULL; return NULL;
} }
EXPORT_SYMBOL_GPL(acpi_pci_find_root);
struct acpi_handle_node { struct acpi_handle_node {
struct list_head node; struct list_head node;

16
include/acpi/acpi_bus.h
View File

@@ -369,10 +369,26 @@ int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_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 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 */ /* helper */
acpi_handle acpi_get_child(acpi_handle, acpi_integer); acpi_handle acpi_get_child(acpi_handle, acpi_integer);
int acpi_is_root_bridge(acpi_handle); int acpi_is_root_bridge(acpi_handle);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int); 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)) #define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
#ifdef CONFIG_PM_SLEEP #ifdef CONFIG_PM_SLEEP