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-rw-r--r--drivers/acpi/glue.c12
-rw-r--r--drivers/acpi/scan.c9
-rw-r--r--include/acpi/acpi_bus.h2
3 files changed, 19 insertions, 4 deletions
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 0c78922..f774c65 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -287,6 +287,7 @@ EXPORT_SYMBOL_GPL(acpi_unbind_one);
static int acpi_platform_notify(struct device *dev)
{
struct acpi_bus_type *type = acpi_get_bus_type(dev);
+ struct acpi_device *adev;
int ret;
ret = acpi_bind_one(dev, NULL);
@@ -303,9 +304,14 @@ static int acpi_platform_notify(struct device *dev)
if (ret)
goto out;
}
+ adev = ACPI_COMPANION(dev);
+ if (!adev)
+ goto out;
if (type && type->setup)
type->setup(dev);
+ else if (adev->handler && adev->handler->bind)
+ adev->handler->bind(dev);
out:
#if ACPI_GLUE_DEBUG
@@ -324,11 +330,17 @@ static int acpi_platform_notify(struct device *dev)
static int acpi_platform_notify_remove(struct device *dev)
{
+ struct acpi_device *adev = ACPI_COMPANION(dev);
struct acpi_bus_type *type;
+ if (!adev)
+ return 0;
+
type = acpi_get_bus_type(dev);
if (type && type->cleanup)
type->cleanup(dev);
+ else if (adev->handler && adev->handler->unbind)
+ adev->handler->unbind(dev);
acpi_unbind_one(dev);
return 0;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 57b053f..9c4581f 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2015,13 +2015,14 @@ static int acpi_scan_attach_handler(struct acpi_device *device)
handler = acpi_scan_match_handler(hwid->id, &devid);
if (handler) {
+ device->handler = handler;
ret = handler->attach(device, devid);
- if (ret > 0) {
- device->handler = handler;
+ if (ret > 0)
break;
- } else if (ret < 0) {
+
+ device->handler = NULL;
+ if (ret < 0)
break;
- }
}
}
return ret;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 8256eb4..c93bce4 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -133,6 +133,8 @@ struct acpi_scan_handler {
struct list_head list_node;
int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
void (*detach)(struct acpi_device *dev);
+ void (*bind)(struct device *phys_dev);
+ void (*unbind)(struct device *phys_dev);
struct acpi_hotplug_profile hotplug;
};
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