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Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/internal.h2
-rw-r--r--drivers/acpi/pci_root.c38
2 files changed, 16 insertions, 24 deletions
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index da233477d26..8310ba01017 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -25,6 +25,7 @@
int init_acpi_device_notify(void);
int acpi_scan_init(void);
+void acpi_pci_root_init(void);
int acpi_sysfs_init(void);
void acpi_csrt_init(void);
@@ -86,7 +87,6 @@ struct acpi_ec {
extern struct acpi_ec *first_ec;
-int acpi_pci_root_init(void);
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_boot_ec_enable(void);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 8890775e8b2..b3cc69c5caf 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -45,8 +45,9 @@
ACPI_MODULE_NAME("pci_root");
#define ACPI_PCI_ROOT_CLASS "pci_bridge"
#define ACPI_PCI_ROOT_DEVICE_NAME "PCI Root Bridge"
-static int acpi_pci_root_add(struct acpi_device *device);
-static int acpi_pci_root_remove(struct acpi_device *device);
+static int acpi_pci_root_add(struct acpi_device *device,
+ const struct acpi_device_id *not_used);
+static void acpi_pci_root_remove(struct acpi_device *device);
#define ACPI_PCIE_REQ_SUPPORT (OSC_EXT_PCI_CONFIG_SUPPORT \
| OSC_ACTIVE_STATE_PWR_SUPPORT \
@@ -57,16 +58,11 @@ static const struct acpi_device_id root_device_ids[] = {
{"PNP0A03", 0},
{"", 0},
};
-MODULE_DEVICE_TABLE(acpi, root_device_ids);
-static struct acpi_driver acpi_pci_root_driver = {
- .name = "pci_root",
- .class = ACPI_PCI_ROOT_CLASS,
+static struct acpi_scan_handler pci_root_handler = {
.ids = root_device_ids,
- .ops = {
- .add = acpi_pci_root_add,
- .remove = acpi_pci_root_remove,
- },
+ .attach = acpi_pci_root_add,
+ .detach = acpi_pci_root_remove,
};
/* Lock to protect both acpi_pci_roots and acpi_pci_drivers lists */
@@ -428,7 +424,8 @@ out:
}
EXPORT_SYMBOL(acpi_pci_osc_control_set);
-static int acpi_pci_root_add(struct acpi_device *device)
+static int acpi_pci_root_add(struct acpi_device *device,
+ const struct acpi_device_id *not_used)
{
unsigned long long segment, bus;
acpi_status status;
@@ -614,7 +611,7 @@ static int acpi_pci_root_add(struct acpi_device *device)
pci_enable_bridges(root->bus);
pci_bus_add_devices(root->bus);
- return 0;
+ return 1;
out_del_root:
mutex_lock(&acpi_pci_root_lock);
@@ -627,7 +624,7 @@ end:
return result;
}
-static int acpi_pci_root_remove(struct acpi_device *device)
+static void acpi_pci_root_remove(struct acpi_device *device)
{
acpi_status status;
acpi_handle handle;
@@ -655,19 +652,14 @@ static int acpi_pci_root_remove(struct acpi_device *device)
list_del(&root->node);
mutex_unlock(&acpi_pci_root_lock);
kfree(root);
- return 0;
}
-int __init acpi_pci_root_init(void)
+void __init acpi_pci_root_init(void)
{
acpi_hest_init();
- if (acpi_pci_disabled)
- return 0;
-
- pci_acpi_crs_quirks();
- if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
- return -ENODEV;
-
- return 0;
+ if (!acpi_pci_disabled) {
+ pci_acpi_crs_quirks();
+ acpi_scan_add_handler(&pci_root_handler);
+ }
}