1 files changed, 23 insertions, 0 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index b0972c4ce81c..d9099b15b472 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -44,6 +44,20 @@
 #include <acpi/acpi_numa.h>
 #include <asm/acpi.h>
 
+static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
+{
+        return adev ? adev->handle : NULL;
+}
+
+#define ACPI_COMPANION(dev)             ((dev)->acpi_node.companion)
+#define ACPI_COMPANION_SET(dev, adev)   ACPI_COMPANION(dev) = (adev)
+#define ACPI_HANDLE(dev)                acpi_device_handle(ACPI_COMPANION(dev))
+
+static inline const char *acpi_dev_name(struct acpi_device *adev)
+{
+        return dev_name(&adev->dev);
+}
+
 enum acpi_irq_model_id {
         ACPI_IRQ_MODEL_PIC = 0,
         ACPI_IRQ_MODEL_IOAPIC,
@@ -401,6 +415,15 @@ static inline bool acpi_driver_match_device(struct device *dev,
 
 #define acpi_disabled 1
 
+#define ACPI_COMPANION(dev)             (NULL)
+#define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
+#define ACPI_HANDLE(dev)                (NULL)
+
+static inline const char *acpi_dev_name(struct acpi_device *adev)
+{
+        return NULL;
+}
+
 static inline void acpi_early_init(void) { }
 
 static inline int early_acpi_boot_init(void)