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authorAlex Chiang <achiang@hp.com>2009-07-23 19:03:00 -0400
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-09-09 16:29:22 -0400
commit76d56de57ae60c6be383e48e7068fd973d5fb08a (patch)
tree732bcbbd91f7d85d658c1fc08d3ea982fcf100bb /drivers/acpi/pci_root.c
parent2547089ca2db132e307ef68848ba029a8ec2f341 (diff)
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: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/acpi/pci_root.c')
-rw-r--r--drivers/acpi/pci_root.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 55b5b90c2a44..31b961c2f22f 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -61,20 +61,6 @@ static struct acpi_driver acpi_pci_root_driver = {
61 }, 61 },
62}; 62};
63 63
64struct acpi_pci_root {
65 struct list_head node;
66 struct acpi_device *device;
67 struct pci_bus *bus;
68 u16 segment;
69 u8 bus_nr;
70
71 u32 osc_support_set; /* _OSC state of support bits */
72 u32 osc_control_set; /* _OSC state of control bits */
73 u32 osc_control_qry; /* the latest _OSC query result */
74
75 u32 osc_queried:1; /* has _OSC control been queried? */
76};
77
78static LIST_HEAD(acpi_pci_roots); 64static LIST_HEAD(acpi_pci_roots);
79 65
80static struct acpi_pci_driver *sub_driver; 66static struct acpi_pci_driver *sub_driver;
@@ -317,7 +303,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
317 return status; 303 return status;
318} 304}
319 305
320static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) 306struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
321{ 307{
322 struct acpi_pci_root *root; 308 struct acpi_pci_root *root;
323 309
@@ -327,6 +313,7 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
327 } 313 }
328 return NULL; 314 return NULL;
329} 315}
316EXPORT_SYMBOL_GPL(acpi_pci_find_root);
330 317
331struct acpi_handle_node { 318struct acpi_handle_node {
332 struct list_head node; 319 struct list_head node;