1 files changed, 32 insertions, 3 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index c5eaf2f80a4c..2d42fb7d56b7 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -85,6 +85,8 @@ static inline const char *acpi_dev_name(struct acpi_device *adev)
 	return dev_name(&adev->dev);
 }
 
+struct device *acpi_get_first_physical_node(struct acpi_device *adev);
+
 enum acpi_irq_model_id {
 	ACPI_IRQ_MODEL_PIC = 0,
 	ACPI_IRQ_MODEL_IOAPIC,
@@ -634,6 +636,11 @@ static inline const char *acpi_dev_name(struct acpi_device *adev)
 	return NULL;
 }
 
+static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
+{
+	return NULL;
+}
+
 static inline void acpi_early_init(void) { }
 static inline void acpi_subsystem_init(void) { }
 
@@ -927,9 +934,17 @@ struct acpi_reference_args {
 #ifdef CONFIG_ACPI
 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
 			  acpi_object_type type, const union acpi_object **obj);
-int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
-				     const char *name, size_t index,
-				     struct acpi_reference_args *args);
+int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+				const char *name, size_t index, size_t num_args,
+				struct acpi_reference_args *args);
+
+static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+				const char *name, size_t index,
+				struct acpi_reference_args *args)
+{
+	return __acpi_node_get_property_reference(fwnode, name, index,
+		MAX_ACPI_REFERENCE_ARGS, args);
+}
 
 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
 		       void **valptr);
@@ -1005,6 +1020,14 @@ static inline int acpi_dev_get_property(struct acpi_device *adev,
 	return -ENXIO;
 }
 
+static inline int
+__acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+				const char *name, size_t index, size_t num_args,
+				struct acpi_reference_args *args)
+{
+	return -ENXIO;
+}
+
 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
 				const char *name, size_t index,
 				struct acpi_reference_args *args)
@@ -1074,4 +1097,10 @@ void acpi_table_upgrade(void);
 static inline void acpi_table_upgrade(void) { }
 #endif
 
+#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
+extern bool acpi_has_watchdog(void);
+#else
+static inline bool acpi_has_watchdog(void) { return false; }
+#endif
+
 #endif	/*_LINUX_ACPI_H*/