[PATCH] fix and optimize clock source update

[linux-2.6-omap-h63xx.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index 9943f51cd8091ee6e7fa2736c456a372f976ad4b..1e5f30da98bc528b9ab9aaf629a673cb50e6f8ae 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -60,11 +60,6 @@ extern void bus_unregister(struct bus_type * bus);
 
 extern void bus_rescan_devices(struct bus_type * bus);
 
-extern struct bus_type * get_bus(struct bus_type * bus);
-extern void put_bus(struct bus_type * bus);
-
-extern struct bus_type * find_bus(char * name);
-
 /* iterator helpers for buses */
 
 int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data,
@@ -147,6 +142,7 @@ struct class {
 
        struct subsystem        subsys;
        struct list_head        children;
+       struct list_head        devices;
        struct list_head        interfaces;
        struct semaphore        sem;    /* locks both the children and interfaces lists */
 
@@ -163,9 +159,6 @@ struct class {
 extern int class_register(struct class *);
 extern void class_unregister(struct class *);
 
-extern struct class * class_get(struct class *);
-extern void class_put(struct class *);
-
 
 struct class_attribute {
        struct attribute        attr;
@@ -199,6 +192,7 @@ extern int class_device_create_file(struct class_device *,
  * @node: for internal use by the driver core only.
  * @kobj: for internal use by the driver core only.
  * @devt_attr: for internal use by the driver core only.
+ * @groups: optional additional groups to be created
  * @dev: if set, a symlink to the struct device is created in the sysfs
  * directory for this struct class device.
  * @class_data: pointer to whatever you want to store here for this struct
@@ -227,6 +221,7 @@ struct class_device {
        struct device           * dev;          /* not necessary, but nice to have */
        void                    * class_data;   /* class-specific data */
        struct class_device     *parent;        /* parent of this child device, if there is one */
+       struct attribute_group  ** groups;      /* optional groups */
 
        void    (*release)(struct class_device *dev);
        int     (*uevent)(struct class_device *dev, char **envp,
@@ -311,6 +306,7 @@ struct device {
        struct kobject kobj;
        char    bus_id[BUS_ID_SIZE];    /* position on parent bus */
        struct device_attribute uevent_attr;
+       struct device_attribute *devt_attr;
 
        struct semaphore        sem;    /* semaphore to synchronize calls to
                                         * its driver.
@@ -338,6 +334,11 @@ struct device {
        struct dma_coherent_mem *dma_mem; /* internal for coherent mem
                                             override */
 
+       /* class_device migration path */
+       struct list_head        node;
+       struct class            *class;         /* optional*/
+       dev_t                   devt;           /* dev_t, creates the sysfs "dev" */
+
        void    (*release)(struct device * dev);
 };
 
@@ -379,6 +380,13 @@ extern int  device_attach(struct device * dev);
 extern void driver_attach(struct device_driver * drv);
 extern void device_reprobe(struct device *dev);
 
+/*
+ * Easy functions for dynamically creating devices on the fly
+ */
+extern struct device *device_create(struct class *cls, struct device *parent,
+                                   dev_t devt, char *fmt, ...)
+                                   __attribute__((format(printf,4,5)));
+extern void device_destroy(struct class *cls, dev_t devt);
 
 /*
  * Platform "fixup" functions - allow the platform to have their say
@@ -408,8 +416,9 @@ extern int firmware_register(struct subsystem *);
 extern void firmware_unregister(struct subsystem *);
 
 /* debugging and troubleshooting/diagnostic helpers. */
+extern const char *dev_driver_string(struct device *dev);
 #define dev_printk(level, dev, format, arg...) \
-       printk(level "%s %s: " format , (dev)->driver ? (dev)->driver->name : "" , (dev)->bus_id , ## arg)
+       printk(level "%s %s: " format , dev_driver_string(dev) , (dev)->bus_id , ## arg)
 
 #ifdef DEBUG
 #define dev_dbg(dev, format, arg...)           \