From 76d56de57ae60c6be383e48e7068fd973d5fb08a Mon Sep 17 00:00:00 2001
From: Alex Chiang <achiang@hp.com>
Date: Thu, 23 Jul 2009 17:03:00 -0600
Subject: [PATCH] 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>
---
drivers/acpi/pci_root.c | 17 ++---------------
include/acpi/acpi_bus.h | 16 ++++++++++++++++
2 files changed, 18 insertions(+), 15 deletions(-)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 55b5b90c2a442..31b961c2f22f4 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 = {
},
};
-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;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index c65e4ce6c3afa..c3ace75d57b4e 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -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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