1 files changed, 49 insertions, 1 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index f44247fe8135..26e4692f2d1a 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -126,6 +126,7 @@ struct device_driver {
         struct klist_node       knode_bus;
 
         struct module           * owner;
+        const char              * mod_name;     /* used for built-in modules */
 
         int     (*probe)        (struct device * dev);
         int     (*remove)       (struct device * dev);
@@ -327,6 +328,13 @@ extern struct class_device *class_device_create(struct class *cls,
                                         __attribute__((format(printf,5,6)));
 extern void class_device_destroy(struct class *cls, dev_t devt);
 
+struct device_type {
+        struct device_attribute *attrs;
+        int (*uevent)(struct device *dev, char **envp, int num_envp,
+                      char *buffer, int buffer_size);
+        void (*release)(struct device *dev);
+};
+
 /* interface for exporting device attributes */
 struct device_attribute {
         struct attribute        attr;
@@ -346,6 +354,41 @@ extern int __must_check device_create_bin_file(struct device *dev,
                                                struct bin_attribute *attr);
 extern void device_remove_bin_file(struct device *dev,
                                    struct bin_attribute *attr);
+
+/* device resource management */
+typedef void (*dr_release_t)(struct device *dev, void *res);
+typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data);
+
+#ifdef CONFIG_DEBUG_DEVRES
+extern void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
+                             const char *name);
+#define devres_alloc(release, size, gfp) \
+        __devres_alloc(release, size, gfp, #release)
+#else
+extern void * devres_alloc(dr_release_t release, size_t size, gfp_t gfp);
+#endif
+extern void devres_free(void *res);
+extern void devres_add(struct device *dev, void *res);
+extern void * devres_find(struct device *dev, dr_release_t release,
+                          dr_match_t match, void *match_data);
+extern void * devres_get(struct device *dev, void *new_res,
+                         dr_match_t match, void *match_data);
+extern void * devres_remove(struct device *dev, dr_release_t release,
+                            dr_match_t match, void *match_data);
+extern int devres_destroy(struct device *dev, dr_release_t release,
+                          dr_match_t match, void *match_data);
+
+/* devres group */
+extern void * __must_check devres_open_group(struct device *dev, void *id,
+                                             gfp_t gfp);
+extern void devres_close_group(struct device *dev, void *id);
+extern void devres_remove_group(struct device *dev, void *id);
+extern int devres_release_group(struct device *dev, void *id);
+
+/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
+extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+extern void devm_kfree(struct device *dev, void *p);
+
 struct device {
         struct klist            klist_children;
         struct klist_node       knode_parent;           /* node in sibling list */
@@ -355,6 +398,7 @@ struct device {
 
         struct kobject kobj;
         char    bus_id[BUS_ID_SIZE];    /* position on parent bus */
+        struct device_type      *type;
         unsigned                is_registered:1;
         struct device_attribute uevent_attr;
         struct device_attribute *devt_attr;
@@ -388,11 +432,15 @@ struct device {
         /* arch specific additions */
         struct dev_archdata     archdata;
 
+        spinlock_t              devres_lock;
+        struct list_head        devres_head;
+
         /* class_device migration path */
         struct list_head        node;
-        struct class            *class;         /* optional*/
+        struct class            *class;
         dev_t                   devt;           /* dev_t, creates the sysfs "dev" */
         struct attribute_group  **groups;       /* optional groups */
+        int                     uevent_suppress;
 
         void    (*release)(struct device * dev);
 };