1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index c20dfbfc49b4..85e78fc7d7fd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -33,6 +33,7 @@ struct class;
 struct subsys_private;
 struct bus_type;
 struct device_node;
+struct iommu_ops;
 
 struct bus_attribute {
         struct attribute        attr;
@@ -67,6 +68,9 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
  * @resume:     Called to bring a device on this bus out of sleep mode.
  * @pm:         Power management operations of this bus, callback the specific
  *              device driver's pm-ops.
+ * @iommu_ops   IOMMU specific operations for this bus, used to attach IOMMU
+ *              driver implementations to a bus and allow the driver to do
+ *              bus-specific setup
  * @p:          The private data of the driver core, only the driver core can
  *              touch this.
  *
@@ -96,6 +100,8 @@ struct bus_type {
 
         const struct dev_pm_ops *pm;
 
+        struct iommu_ops *iommu_ops;
+
         struct subsys_private *p;
 };
 
@@ -350,6 +356,8 @@ struct class_attribute {
                         char *buf);
         ssize_t (*store)(struct class *class, struct class_attribute *attr,
                         const char *buf, size_t count);
+        const void *(*namespace)(struct class *class,
+                                 const struct class_attribute *attr);
 };
 
 #define CLASS_ATTR(_name, _mode, _show, _store)                 \
@@ -636,6 +644,11 @@ static inline void set_dev_node(struct device *dev, int node)
 }
 #endif
 
+static inline struct pm_subsys_data *dev_to_psd(struct device *dev)
+{
+        return dev ? dev->power.subsys_data : NULL;
+}
+
 static inline unsigned int dev_get_uevent_suppress(const struct device *dev)
 {
         return dev->kobj.uevent_suppress;
@@ -785,6 +798,8 @@ extern const char *dev_driver_string(const struct device *dev);
 
 #ifdef CONFIG_PRINTK
 
+extern int __dev_printk(const char *level, const struct device *dev,
+                        struct va_format *vaf);
 extern int dev_printk(const char *level, const struct device *dev,
                       const char *fmt, ...)
         __attribute__ ((format (printf, 3, 4)));
@@ -805,6 +820,9 @@ extern int _dev_info(const struct device *dev, const char *fmt, ...)
 
 #else
 
+static inline int __dev_printk(const char *level, const struct device *dev,
+                               struct va_format *vaf)
+         { return 0; }
 static inline int dev_printk(const char *level, const struct device *dev,
                       const char *fmt, ...)
         __attribute__ ((format (printf, 3, 4)));