Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into common/serial-rework

Conflicts:
	arch/sh/kernel/cpu/sh2/setup-sh7619.c
	arch/sh/kernel/cpu/sh2a/setup-mxg.c
	arch/sh/kernel/cpu/sh2a/setup-sh7201.c
	arch/sh/kernel/cpu/sh2a/setup-sh7203.c
	arch/sh/kernel/cpu/sh2a/setup-sh7206.c
	arch/sh/kernel/cpu/sh3/setup-sh7705.c
	arch/sh/kernel/cpu/sh3/setup-sh770x.c
	arch/sh/kernel/cpu/sh3/setup-sh7710.c
	arch/sh/kernel/cpu/sh3/setup-sh7720.c
	arch/sh/kernel/cpu/sh4/setup-sh4-202.c
	arch/sh/kernel/cpu/sh4/setup-sh7750.c
	arch/sh/kernel/cpu/sh4/setup-sh7760.c
	arch/sh/kernel/cpu/sh4a/setup-sh7343.c
	arch/sh/kernel/cpu/sh4a/setup-sh7366.c
	arch/sh/kernel/cpu/sh4a/setup-sh7722.c
	arch/sh/kernel/cpu/sh4a/setup-sh7723.c
	arch/sh/kernel/cpu/sh4a/setup-sh7724.c
	arch/sh/kernel/cpu/sh4a/setup-sh7763.c
	arch/sh/kernel/cpu/sh4a/setup-sh7770.c
	arch/sh/kernel/cpu/sh4a/setup-sh7780.c
	arch/sh/kernel/cpu/sh4a/setup-sh7785.c
	arch/sh/kernel/cpu/sh4a/setup-sh7786.c
	arch/sh/kernel/cpu/sh4a/setup-shx3.c
	arch/sh/kernel/cpu/sh5/setup-sh5.c
	drivers/serial/sh-sci.c
	drivers/serial/sh-sci.h
	include/linux/serial_sci.h

1 files changed, 223 insertions, 73 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index ed4e39f2c423..1bf5cf0b4513 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -2,7 +2,8 @@
  * device.h - generic, centralized driver model
  *
  * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
- * Copyright (c) 2004-2007 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (c) 2008-2009 Novell Inc.
  *
  * This file is released under the GPLv2
  *
@@ -21,20 +22,17 @@
 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/pm.h>
-#include <linux/semaphore.h>
 #include <asm/atomic.h>
 #include <asm/device.h>
 
-#define BUS_ID_SIZE		20
-
 struct device;
 struct device_private;
 struct device_driver;
 struct driver_private;
 struct class;
-struct class_private;
+struct subsys_private;
 struct bus_type;
-struct bus_type_private;
+struct device_node;
 
 struct bus_attribute {
 	struct attribute	attr;
@@ -64,9 +62,9 @@ struct bus_type {
 	int (*suspend)(struct device *dev, pm_message_t state);
 	int (*resume)(struct device *dev);
 
-	struct dev_pm_ops *pm;
+	const struct dev_pm_ops *pm;
 
-	struct bus_type_private *p;
+	struct subsys_private *p;
 };
 
 extern int __must_check bus_register(struct bus_type *bus);
@@ -85,9 +83,8 @@ struct device *bus_find_device_by_name(struct bus_type *bus,
 				       struct device *start,
 				       const char *name);
 
-int __must_check bus_for_each_drv(struct bus_type *bus,
-				  struct device_driver *start, void *data,
-				  int (*fn)(struct device_driver *, void *));
+int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
+		     void *data, int (*fn)(struct device_driver *, void *));
 
 void bus_sort_breadthfirst(struct bus_type *bus,
 			   int (*compare)(const struct device *a,
@@ -107,14 +104,16 @@ extern int bus_unregister_notifier(struct bus_type *bus,
 
 /* All 4 notifers below get called with the target struct device *
  * as an argument. Note that those functions are likely to be called
- * with the device semaphore held in the core, so be careful.
+ * with the device lock held in the core, so be careful.
  */
 #define BUS_NOTIFY_ADD_DEVICE		0x00000001 /* device added */
 #define BUS_NOTIFY_DEL_DEVICE		0x00000002 /* device removed */
-#define BUS_NOTIFY_BOUND_DRIVER		0x00000003 /* driver bound to device */
-#define BUS_NOTIFY_UNBIND_DRIVER	0x00000004 /* driver about to be
+#define BUS_NOTIFY_BIND_DRIVER		0x00000003 /* driver about to be
+						      bound */
+#define BUS_NOTIFY_BOUND_DRIVER		0x00000004 /* driver bound to device */
+#define BUS_NOTIFY_UNBIND_DRIVER	0x00000005 /* driver about to be
 						      unbound */
-#define BUS_NOTIFY_UNBOUND_DRIVER	0x00000005 /* driver is unbound
+#define BUS_NOTIFY_UNBOUND_DRIVER	0x00000006 /* driver is unbound
 						      from the device */
 
 extern struct kset *bus_get_kset(struct bus_type *bus);
@@ -125,16 +124,22 @@ struct device_driver {
 	struct bus_type		*bus;
 
 	struct module		*owner;
-	const char 		*mod_name;	/* used for built-in modules */
+	const char		*mod_name;	/* used for built-in modules */
+
+	bool suppress_bind_attrs;	/* disables bind/unbind via sysfs */
+
+#if defined(CONFIG_OF)
+	const struct of_device_id	*of_match_table;
+#endif
 
 	int (*probe) (struct device *dev);
 	int (*remove) (struct device *dev);
 	void (*shutdown) (struct device *dev);
 	int (*suspend) (struct device *dev, pm_message_t state);
 	int (*resume) (struct device *dev);
-	struct attribute_group **groups;
+	const struct attribute_group **groups;
 
-	struct dev_pm_ops *pm;
+	const struct dev_pm_ops *pm;
 
 	struct driver_private *p;
 };
@@ -165,9 +170,9 @@ struct driver_attribute driver_attr_##_name =		\
 	__ATTR(_name, _mode, _show, _store)
 
 extern int __must_check driver_create_file(struct device_driver *driver,
-					   struct driver_attribute *attr);
+					const struct driver_attribute *attr);
 extern void driver_remove_file(struct device_driver *driver,
-			       struct driver_attribute *attr);
+			       const struct driver_attribute *attr);
 
 extern int __must_check driver_add_kobj(struct device_driver *drv,
 					struct kobject *kobj,
@@ -191,10 +196,11 @@ struct class {
 
 	struct class_attribute		*class_attrs;
 	struct device_attribute		*dev_attrs;
+	struct bin_attribute		*dev_bin_attrs;
 	struct kobject			*dev_kobj;
 
 	int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
-	char *(*nodename)(struct device *dev);
+	char *(*devnode)(struct device *dev, mode_t *mode);
 
 	void (*class_release)(struct class *class);
 	void (*dev_release)(struct device *dev);
@@ -202,8 +208,12 @@ struct class {
 	int (*suspend)(struct device *dev, pm_message_t state);
 	int (*resume)(struct device *dev);
 
-	struct dev_pm_ops *pm;
-	struct class_private *p;
+	const struct kobj_ns_type_operations *ns_type;
+	const void *(*namespace)(struct device *dev);
+
+	const struct dev_pm_ops *pm;
+
+	struct subsys_private *p;
 };
 
 struct class_dev_iter {
@@ -225,6 +235,14 @@ extern void class_unregister(struct class *class);
 	__class_register(class, &__key);	\
 })
 
+struct class_compat;
+struct class_compat *class_compat_register(const char *name);
+void class_compat_unregister(struct class_compat *cls);
+int class_compat_create_link(struct class_compat *cls, struct device *dev,
+			     struct device *device_link);
+void class_compat_remove_link(struct class_compat *cls, struct device *dev,
+			      struct device *device_link);
+
 extern void class_dev_iter_init(struct class_dev_iter *iter,
 				struct class *class,
 				struct device *start,
@@ -241,8 +259,10 @@ extern struct device *class_find_device(struct class *class,
 
 struct class_attribute {
 	struct attribute attr;
-	ssize_t (*show)(struct class *class, char *buf);
-	ssize_t (*store)(struct class *class, const char *buf, size_t count);
+	ssize_t (*show)(struct class *class, struct class_attribute *attr,
+			char *buf);
+	ssize_t (*store)(struct class *class, struct class_attribute *attr,
+			const char *buf, size_t count);
 };
 
 #define CLASS_ATTR(_name, _mode, _show, _store)			\
@@ -253,6 +273,23 @@ extern int __must_check class_create_file(struct class *class,
 extern void class_remove_file(struct class *class,
 			      const struct class_attribute *attr);
 
+/* Simple class attribute that is just a static string */
+
+struct class_attribute_string {
+	struct class_attribute attr;
+	char *str;
+};
+
+/* Currently read-only only */
+#define _CLASS_ATTR_STRING(_name, _mode, _str) \
+	{ __ATTR(_name, _mode, show_class_attr_string, NULL), _str }
+#define CLASS_ATTR_STRING(_name, _mode, _str) \
+	struct class_attribute_string class_attr_##_name = \
+		_CLASS_ATTR_STRING(_name, _mode, _str)
+
+extern ssize_t show_class_attr_string(struct class *class, struct class_attribute *attr,
+                        char *buf);
+
 struct class_interface {
 	struct list_head	node;
 	struct class		*class;
@@ -288,12 +325,12 @@ extern void class_destroy(struct class *cls);
  */
 struct device_type {
 	const char *name;
-	struct attribute_group **groups;
+	const struct attribute_group **groups;
 	int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
-	char *(*nodename)(struct device *dev);
+	char *(*devnode)(struct device *dev, mode_t *mode);
 	void (*release)(struct device *dev);
 
-	struct dev_pm_ops *pm;
+	const struct dev_pm_ops *pm;
 };
 
 /* interface for exporting device attributes */
@@ -309,13 +346,13 @@ struct device_attribute {
 struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
 
 extern int __must_check device_create_file(struct device *device,
-					   struct device_attribute *entry);
+					const struct device_attribute *entry);
 extern void device_remove_file(struct device *dev,
-			       struct device_attribute *attr);
+			       const struct device_attribute *attr);
 extern int __must_check device_create_bin_file(struct device *dev,
-					       struct bin_attribute *attr);
+					const struct bin_attribute *attr);
 extern void device_remove_bin_file(struct device *dev,
-				   struct bin_attribute *attr);
+				   const struct bin_attribute *attr);
 extern int device_schedule_callback_owner(struct device *dev,
 		void (*func)(struct device *dev), struct module *owner);
 
@@ -375,14 +412,13 @@ struct device {
 	const char		*init_name; /* initial name of the device */
 	struct device_type	*type;
 
-	struct semaphore	sem;	/* semaphore to synchronize calls to
+	struct mutex		mutex;	/* mutex to synchronize calls to
 					 * its driver.
 					 */
 
 	struct bus_type	*bus;		/* type of bus device is on */
 	struct device_driver *driver;	/* which driver has allocated this
 					   device */
-	void		*driver_data;	/* data private to the driver */
 	void		*platform_data;	/* Platform specific data, device
 					   core doesn't touch it */
 	struct dev_pm_info	power;
@@ -405,6 +441,9 @@ struct device {
 					     override */
 	/* arch specific additions */
 	struct dev_archdata	archdata;
+#ifdef CONFIG_OF
+	struct device_node	*of_node;
+#endif
 
 	dev_t			devt;	/* dev_t, creates the sysfs "dev" */
 
@@ -413,7 +452,7 @@ struct device {
 
 	struct klist_node	knode_class;
 	struct class		*class;
-	struct attribute_group	**groups;	/* optional groups */
+	const struct attribute_group **groups;	/* optional groups */
 
 	void	(*release)(struct device *dev);
 };
@@ -423,6 +462,10 @@ struct device {
 
 static inline const char *dev_name(const struct device *dev)
 {
+	/* Use the init name until the kobject becomes available */
+	if (dev->init_name)
+		return dev->init_name;
+
 	return kobject_name(&dev->kobj);
 }
 
@@ -448,16 +491,6 @@ static inline void set_dev_node(struct device *dev, int node)
 }
 #endif
 
-static inline void *dev_get_drvdata(const struct device *dev)
-{
-	return dev->driver_data;
-}
-
-static inline void dev_set_drvdata(struct device *dev, void *data)
-{
-	dev->driver_data = data;
-}
-
 static inline unsigned int dev_get_uevent_suppress(const struct device *dev)
 {
 	return dev->kobj.uevent_suppress;
@@ -473,6 +506,38 @@ static inline int device_is_registered(struct device *dev)
 	return dev->kobj.state_in_sysfs;
 }
 
+static inline void device_enable_async_suspend(struct device *dev)
+{
+	if (!dev->power.in_suspend)
+		dev->power.async_suspend = true;
+}
+
+static inline void device_disable_async_suspend(struct device *dev)
+{
+	if (!dev->power.in_suspend)
+		dev->power.async_suspend = false;
+}
+
+static inline bool device_async_suspend_enabled(struct device *dev)
+{
+	return !!dev->power.async_suspend;
+}
+
+static inline void device_lock(struct device *dev)
+{
+	mutex_lock(&dev->mutex);
+}
+
+static inline int device_trylock(struct device *dev)
+{
+	return mutex_trylock(&dev->mutex);
+}
+
+static inline void device_unlock(struct device *dev)
+{
+	mutex_unlock(&dev->mutex);
+}
+
 void driver_init(void);
 
 /*
@@ -487,10 +552,13 @@ extern int device_for_each_child(struct device *dev, void *data,
 		     int (*fn)(struct device *dev, void *data));
 extern struct device *device_find_child(struct device *dev, void *data,
 				int (*match)(struct device *dev, void *data));
-extern int device_rename(struct device *dev, char *new_name);
+extern int device_rename(struct device *dev, const char *new_name);
 extern int device_move(struct device *dev, struct device *new_parent,
 		       enum dpm_order dpm_order);
-extern const char *device_get_nodename(struct device *dev, const char **tmp);
+extern const char *device_get_devnode(struct device *dev,
+				      mode_t *mode, const char **tmp);
+extern void *dev_get_drvdata(const struct device *dev);
+extern void dev_set_drvdata(struct device *dev, void *data);
 
 /*
  * Root device objects for grouping under /sys/devices
@@ -503,6 +571,11 @@ static inline struct device *root_device_register(const char *name)
 }
 extern void root_device_unregister(struct device *root);
 
+static inline void *dev_get_platdata(const struct device *dev)
+{
+	return dev->platform_data;
+}
+
 /*
  * Manual binding of a device to driver. See drivers/base/bus.c
  * for information on use.
@@ -548,6 +621,16 @@ extern void put_device(struct device *dev);
 
 extern void wait_for_device_probe(void);
 
+#ifdef CONFIG_DEVTMPFS
+extern int devtmpfs_create_node(struct device *dev);
+extern int devtmpfs_delete_node(struct device *dev);
+extern int devtmpfs_mount(const char *mntdir);
+#else
+static inline int devtmpfs_create_node(struct device *dev) { return 0; }
+static inline int devtmpfs_delete_node(struct device *dev) { return 0; }
+static inline int devtmpfs_mount(const char *mountpoint) { return 0; }
+#endif
+
 /* drivers/base/power/shutdown.c */
 extern void device_shutdown(void);
 
@@ -556,43 +639,103 @@ extern void sysdev_shutdown(void);
 
 /* debugging and troubleshooting/diagnostic helpers. */
 extern const char *dev_driver_string(const struct device *dev);
-#define dev_printk(level, dev, format, arg...)	\
-	printk(level "%s %s: " format , dev_driver_string(dev) , \
-	       dev_name(dev) , ## arg)
-
-#define dev_emerg(dev, format, arg...)		\
-	dev_printk(KERN_EMERG , dev , format , ## arg)
-#define dev_alert(dev, format, arg...)		\
-	dev_printk(KERN_ALERT , dev , format , ## arg)
-#define dev_crit(dev, format, arg...)		\
-	dev_printk(KERN_CRIT , dev , format , ## arg)
-#define dev_err(dev, format, arg...)		\
-	dev_printk(KERN_ERR , dev , format , ## arg)
-#define dev_warn(dev, format, arg...)		\
-	dev_printk(KERN_WARNING , dev , format , ## arg)
-#define dev_notice(dev, format, arg...)		\
-	dev_printk(KERN_NOTICE , dev , format , ## arg)
-#define dev_info(dev, format, arg...)		\
-	dev_printk(KERN_INFO , dev , format , ## arg)
+
+
+#ifdef CONFIG_PRINTK
+
+extern int dev_printk(const char *level, const struct device *dev,
+		      const char *fmt, ...)
+	__attribute__ ((format (printf, 3, 4)));
+extern int dev_emerg(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+extern int dev_alert(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+extern int dev_crit(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+extern int dev_err(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+extern int dev_warn(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+extern int dev_notice(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+extern int _dev_info(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+
+#else
+
+static inline int dev_printk(const char *level, const struct device *dev,
+		      const char *fmt, ...)
+	__attribute__ ((format (printf, 3, 4)));
+static inline int dev_printk(const char *level, const struct device *dev,
+		      const char *fmt, ...)
+	 { return 0; }
+
+static inline int dev_emerg(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+static inline int dev_emerg(const struct device *dev, const char *fmt, ...)
+	{ return 0; }
+static inline int dev_crit(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+static inline int dev_crit(const struct device *dev, const char *fmt, ...)
+	{ return 0; }
+static inline int dev_alert(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+static inline int dev_alert(const struct device *dev, const char *fmt, ...)
+	{ return 0; }
+static inline int dev_err(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+static inline int dev_err(const struct device *dev, const char *fmt, ...)
+	{ return 0; }
+static inline int dev_warn(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+static inline int dev_warn(const struct device *dev, const char *fmt, ...)
+	{ return 0; }
+static inline int dev_notice(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+static inline int dev_notice(const struct device *dev, const char *fmt, ...)
+	{ return 0; }
+static inline int _dev_info(const struct device *dev, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+static inline int _dev_info(const struct device *dev, const char *fmt, ...)
+	{ return 0; }
+
+#endif
+
+/*
+ * Stupid hackaround for existing uses of non-printk uses dev_info
+ *
+ * Note that the definition of dev_info below is actually _dev_info
+ * and a macro is used to avoid redefining dev_info
+ */
+
+#define dev_info(dev, fmt, arg...) _dev_info(dev, fmt, ##arg)
 
 #if defined(DEBUG)
 #define dev_dbg(dev, format, arg...)		\
-	dev_printk(KERN_DEBUG , dev , format , ## arg)
+	dev_printk(KERN_DEBUG, dev, format, ##arg)
 #elif defined(CONFIG_DYNAMIC_DEBUG)
-#define dev_dbg(dev, format, ...) do { \
+#define dev_dbg(dev, format, ...)		     \
+do {						     \
 	dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
-	} while (0)
+} while (0)
 #else
-#define dev_dbg(dev, format, arg...)		\
-	({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
+#define dev_dbg(dev, format, arg...)				\
+({								\
+	if (0)							\
+		dev_printk(KERN_DEBUG, dev, format, ##arg);	\
+	0;							\
+})
 #endif
 
 #ifdef VERBOSE_DEBUG
 #define dev_vdbg	dev_dbg
 #else
-
-#define dev_vdbg(dev, format, arg...)		\
-	({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
+#define dev_vdbg(dev, format, arg...)				\
+({								\
+	if (0)							\
+		dev_printk(KERN_DEBUG, dev, format, ##arg);	\
+	0;							\
+})
 #endif
 
 /*
@@ -608,4 +751,11 @@ extern const char *dev_driver_string(const struct device *dev);
 	MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))
 #define MODULE_ALIAS_CHARDEV_MAJOR(major) \
 	MODULE_ALIAS("char-major-" __stringify(major) "-*")
+
+#ifdef CONFIG_SYSFS_DEPRECATED
+extern long sysfs_deprecated;
+#else
+#define sysfs_deprecated 0
+#endif
+
 #endif /* _DEVICE_H_ */