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Diffstat (limited to 'include/acpi/acpi_bus.h')
-rw-r--r--include/acpi/acpi_bus.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 7ff067a5a3bd..6289020fdab8 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -365,7 +365,6 @@ struct acpi_device {
int device_type;
acpi_handle handle; /* no handle for fixed hardware */
struct fwnode_handle fwnode;
- struct acpi_device *parent;
struct list_head wakeup_list;
struct list_head del_list;
struct acpi_device_status status;
@@ -458,6 +457,14 @@ static inline void *acpi_driver_data(struct acpi_device *d)
#define to_acpi_device(d) container_of(d, struct acpi_device, dev)
#define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
+static inline struct acpi_device *acpi_dev_parent(struct acpi_device *adev)
+{
+ if (adev->dev.parent)
+ return to_acpi_device(adev->dev.parent);
+
+ return NULL;
+}
+
static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
{
*((u32 *)&adev->status) = sta;
@@ -478,6 +485,7 @@ void acpi_initialize_hp_context(struct acpi_device *adev,
/* acpi_device.dev.bus == &acpi_bus_type */
extern struct bus_type acpi_bus_type;
+struct acpi_device *acpi_dev_parent(struct acpi_device *adev);
int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data);
int acpi_dev_for_each_child(struct acpi_device *adev,
int (*fn)(struct acpi_device *, void *), void *data);