This function is useful for pci_bind.c as well.
Signed-off-by: Alex Chiang <achiang@xxxxxx>
---
drivers/acpi/pci_root.c | 33 ++++++++++-----------------------
include/acpi/acpi_bus.h | 13 +++++++++++++
2 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 853a6e4..bcab69a 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -61,19 +61,6 @@ static struct acpi_driver acpi_pci_root_driver = {
},
};
-struct acpi_pci_root {
- struct list_head node;
- struct acpi_device * device;
- struct acpi_pci_id id;
- struct pci_bus *bus;
-
- 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;
@@ -183,6 +170,16 @@ out:
}
EXPORT_SYMBOL_GPL(acpi_is_root_bridge);
+struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
+{
+ struct acpi_pci_root *root;
+ list_for_each_entry(root, &acpi_pci_roots, node) {
+ if (root->device->handle == handle)
+ return root;
+ }
+ return NULL;
+}
+
static acpi_status
get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data)
{
@@ -336,16 +333,6 @@ 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 *root;
- list_for_each_entry(root, &acpi_pci_roots, node) {
- if (root->device->handle == handle)
- return root;
- }
- return NULL;
-}
-
/**
* acpi_pci_osc_control_set - commit requested control to Firmware
* @handle: acpi_handle for the target ACPI object
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 494088b..38f2bff 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -371,9 +371,22 @@ struct device *acpi_get_physical_device(acpi_handle);
struct device *acpi_get_physical_pci_device(acpi_handle);
/* helper */
+struct acpi_pci_root {
+ struct list_head node;
+ struct acpi_device *device;
+ struct acpi_pci_id id;
+ struct pci_bus *bus;
+
+ 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? */
+};
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);
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
#ifdef CONFIG_PM_SLEEP
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