Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (60 commits) uio: make uio_info's name and version const UIO: Documentation for UIO ioport info handling UIO: Pass information about ioports to userspace (V2) UIO: uio_pdrv_genirq: allow custom irq_flags UIO: use pci_ioremap_bar() in drivers/uio arm: struct device - replace bus_id with dev_name(), dev_set_name() libata: struct device - replace bus_id with dev_name(), dev_set_name() avr: struct device - replace bus_id with dev_name(), dev_set_name() block: struct device - replace bus_id with dev_name(), dev_set_name() chris: struct device - replace bus_id with dev_name(), dev_set_name() dmi: struct device - replace bus_id with dev_name(), dev_set_name() gadget: struct device - replace bus_id with dev_name(), dev_set_name() gpio: struct device - replace bus_id with dev_name(), dev_set_name() gpu: struct device - replace bus_id with dev_name(), dev_set_name() hwmon: struct device - replace bus_id with dev_name(), dev_set_name() i2o: struct device - replace bus_id with dev_name(), dev_set_name() IA64: struct device - replace bus_id with dev_name(), dev_set_name() i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name() infiniband: struct device - replace bus_id with dev_name(), dev_set_name() ISDN: struct device - replace bus_id with dev_name(), dev_set_name() ...
2009-01-06 17:02:07 -08:00
parent 5fec8bdbf9 b8ac9fc0e8
commit 40d7ee5d16
129 changed files with 1061 additions and 699 deletions
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -28,6 +28,7 @@
 #define BUS_ID_SIZE		20

 struct device;
+struct device_private;
 struct device_driver;
 struct driver_private;
 struct class;
@@ -65,7 +66,7 @@ struct bus_type {
 	int (*resume_early)(struct device *dev);
 	int (*resume)(struct device *dev);

-	struct pm_ext_ops *pm;
+	struct dev_pm_ops *pm;

 	struct bus_type_private *p;
 };
@@ -133,7 +134,7 @@ struct device_driver {
 	int (*resume) (struct device *dev);
 	struct attribute_group **groups;

-	struct pm_ops *pm;
+	struct dev_pm_ops *pm;

 	struct driver_private *p;
 };
@@ -198,7 +199,7 @@ struct class {
 	int (*suspend)(struct device *dev, pm_message_t state);
 	int (*resume)(struct device *dev);

-	struct pm_ops *pm;
+	struct dev_pm_ops *pm;
 	struct class_private *p;
 };

@@ -291,7 +292,7 @@ struct device_type {
 	int (*suspend)(struct device *dev, pm_message_t state);
 	int (*resume)(struct device *dev);

-	struct pm_ops *pm;
+	struct dev_pm_ops *pm;
 };

 /* interface for exporting device attributes */
@@ -365,17 +366,15 @@ struct device_dma_parameters {
 };

 struct device {
-	struct klist		klist_children;
-	struct klist_node	knode_parent;	/* node in sibling list */
-	struct klist_node	knode_driver;
-	struct klist_node	knode_bus;
 	struct device		*parent;

+	struct device_private	*p;
+
 	struct kobject kobj;
 	char	bus_id[BUS_ID_SIZE];	/* position on parent bus */
+	unsigned		uevent_suppress:1;
 	const char		*init_name; /* initial name of the device */
 	struct device_type	*type;
-	unsigned		uevent_suppress:1;

 	struct semaphore	sem;	/* semaphore to synchronize calls to
 					 * its driver.
@@ -408,12 +407,13 @@ struct device {
 	/* arch specific additions */
 	struct dev_archdata	archdata;

+	dev_t			devt;	/* dev_t, creates the sysfs "dev" */
+
 	spinlock_t		devres_lock;
 	struct list_head	devres_head;

 	struct klist_node	knode_class;
 	struct class		*class;
-	dev_t			devt;	/* dev_t, creates the sysfs "dev" */
 	struct attribute_group	**groups;	/* optional groups */

 	void	(*release)(struct device *dev);
@@ -482,6 +482,17 @@ extern struct device *device_find_child(struct device *dev, void *data,
 extern int device_rename(struct device *dev, char *new_name);
 extern int device_move(struct device *dev, struct device *new_parent);

+/*
+ * Root device objects for grouping under /sys/devices
+ */
+extern struct device *__root_device_register(const char *name,
+					     struct module *owner);
+static inline struct device *root_device_register(const char *name)
+{
+	return __root_device_register(name, THIS_MODULE);
+}
+extern void root_device_unregister(struct device *root);
+
 /*
 * Manual binding of a device to driver. See drivers/base/bus.c
 * for information on use.
@@ -553,13 +564,13 @@ extern const char *dev_driver_string(const struct device *dev);
 #define dev_info(dev, format, arg...)		\
 	dev_printk(KERN_INFO , dev , format , ## arg)

-#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#if defined(DEBUG)
+#define dev_dbg(dev, format, arg...)		\
+	dev_printk(KERN_DEBUG , dev , format , ## arg)
+#elif defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
 #define dev_dbg(dev, format, ...) do { \
 	dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
 	} while (0)
-#elif defined(DEBUG)
-#define dev_dbg(dev, format, arg...)		\
-	dev_printk(KERN_DEBUG , dev , format , ## arg)
 #else
 #define dev_dbg(dev, format, arg...)		\
 	({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -355,13 +355,13 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
        printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)

 /* If you are writing a driver, please use dev_dbg instead */
-#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#if defined(DEBUG)
+#define pr_debug(fmt, ...) \
+	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#elif defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
 #define pr_debug(fmt, ...) do { \
 	dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \
 	} while (0)
-#elif defined(DEBUG)
-#define pr_debug(fmt, ...) \
-	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
 #define pr_debug(fmt, ...) \
 	({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
--- a/include/linux/klist.h
+++ b/include/linux/klist.h
@@ -13,7 +13,6 @@
 #define _LINUX_KLIST_H

 #include <linux/spinlock.h>
-#include <linux/completion.h>
 #include <linux/kref.h>
 #include <linux/list.h>

@@ -41,7 +40,6 @@ struct klist_node {
 	void			*n_klist;	/* never access directly */
 	struct list_head	n_node;
 	struct kref		n_ref;
-	struct completion	n_removed;
 };

 extern void klist_add_tail(struct klist_node *n, struct klist *k);
--- a/include/linux/mtd/concat.h
+++ b/include/linux/mtd/concat.h
@@ -13,7 +13,7 @@
 struct mtd_info *mtd_concat_create(
    struct mtd_info *subdev[],  /* subdevices to concatenate */
    int num_devs,               /* number of subdevices      */
-    char *name);                /* name for the new device   */
+    const char *name);          /* name for the new device   */

 void mtd_concat_destroy(struct mtd_info *mtd);

--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -421,7 +421,6 @@ struct pci_driver {
 	int  (*resume_early) (struct pci_dev *dev);
 	int  (*resume) (struct pci_dev *dev);	                /* Device woken up */
 	void (*shutdown) (struct pci_dev *dev);
-	struct pm_ext_ops *pm;
 	struct pci_error_handlers *err_handler;
 	struct device_driver	driver;
 	struct pci_dynids dynids;
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -55,7 +55,6 @@ struct platform_driver {
 	int (*suspend_late)(struct platform_device *, pm_message_t state);
 	int (*resume_early)(struct platform_device *);
 	int (*resume)(struct platform_device *);
-	struct pm_ext_ops *pm;
 	struct device_driver driver;
 };

--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -41,7 +41,7 @@ typedef struct pm_message {
 } pm_message_t;

 /**
- * struct pm_ops - device PM callbacks
+ * struct dev_pm_ops - device PM callbacks
 *
 * Several driver power state transitions are externally visible, affecting
 * the state of pending I/O queues and (for drivers that touch hardware)
@@ -126,46 +126,6 @@ typedef struct pm_message {
 *	On most platforms, there are no restrictions on availability of
 *	resources like clocks during @restore().
 *
- * All of the above callbacks, except for @complete(), return error codes.
- * However, the error codes returned by the resume operations, @resume(),
- * @thaw(), and @restore(), do not cause the PM core to abort the resume
- * transition during which they are returned.  The error codes returned in
- * that cases are only printed by the PM core to the system logs for debugging
- * purposes.  Still, it is recommended that drivers only return error codes
- * from their resume methods in case of an unrecoverable failure (i.e. when the
- * device being handled refuses to resume and becomes unusable) to allow us to
- * modify the PM core in the future, so that it can avoid attempting to handle
- * devices that failed to resume and their children.
- *
- * It is allowed to unregister devices while the above callbacks are being
- * executed.  However, it is not allowed to unregister a device from within any
- * of its own callbacks.
- */
-
-struct pm_ops {
-	int (*prepare)(struct device *dev);
-	void (*complete)(struct device *dev);
-	int (*suspend)(struct device *dev);
-	int (*resume)(struct device *dev);
-	int (*freeze)(struct device *dev);
-	int (*thaw)(struct device *dev);
-	int (*poweroff)(struct device *dev);
-	int (*restore)(struct device *dev);
-};
-
-/**
- * struct pm_ext_ops - extended device PM callbacks
- *
- * Some devices require certain operations related to suspend and hibernation
- * to be carried out with interrupts disabled.  Thus, 'struct pm_ext_ops' below
- * is defined, adding callbacks to be executed with interrupts disabled to
- * 'struct pm_ops'.
- *
- * The following callbacks included in 'struct pm_ext_ops' are executed with
- * the nonboot CPUs switched off and with interrupts disabled on the only
- * functional CPU.  They also are executed with the PM core list of devices
- * locked, so they must NOT unregister any devices.
- *
 * @suspend_noirq: Complete the operations of ->suspend() by carrying out any
 *	actions required for suspending the device that need interrupts to be
 *	disabled
@@ -190,18 +150,32 @@ struct pm_ops {
 *	actions required for restoring the operations of the device that need
 *	interrupts to be disabled
 *
- * All of the above callbacks return error codes, but the error codes returned
- * by the resume operations, @resume_noirq(), @thaw_noirq(), and
- * @restore_noirq(), do not cause the PM core to abort the resume transition
- * during which they are returned.  The error codes returned in that cases are
- * only printed by the PM core to the system logs for debugging purposes.
- * Still, as stated above, it is recommended that drivers only return error
- * codes from their resume methods if the device being handled fails to resume
- * and is not usable any more.
+ * All of the above callbacks, except for @complete(), return error codes.
+ * However, the error codes returned by the resume operations, @resume(),
+ * @thaw(), @restore(), @resume_noirq(), @thaw_noirq(), and @restore_noirq() do
+ * not cause the PM core to abort the resume transition during which they are
+ * returned.  The error codes returned in that cases are only printed by the PM
+ * core to the system logs for debugging purposes.  Still, it is recommended
+ * that drivers only return error codes from their resume methods in case of an
+ * unrecoverable failure (i.e. when the device being handled refuses to resume
+ * and becomes unusable) to allow us to modify the PM core in the future, so
+ * that it can avoid attempting to handle devices that failed to resume and
+ * their children.
+ *
+ * It is allowed to unregister devices while the above callbacks are being
+ * executed.  However, it is not allowed to unregister a device from within any
+ * of its own callbacks.
 */

-struct pm_ext_ops {
-	struct pm_ops base;
+struct dev_pm_ops {
+	int (*prepare)(struct device *dev);
+	void (*complete)(struct device *dev);
+	int (*suspend)(struct device *dev);
+	int (*resume)(struct device *dev);
+	int (*freeze)(struct device *dev);
+	int (*thaw)(struct device *dev);
+	int (*poweroff)(struct device *dev);
+	int (*restore)(struct device *dev);
 	int (*suspend_noirq)(struct device *dev);
 	int (*resume_noirq)(struct device *dev);
 	int (*freeze_noirq)(struct device *dev);
@@ -278,7 +252,7 @@ struct pm_ext_ops {
 #define PM_EVENT_SLEEP		(PM_EVENT_SUSPEND | PM_EVENT_HIBERNATE)
 #define PM_EVENT_USER_SUSPEND	(PM_EVENT_USER | PM_EVENT_SUSPEND)
 #define PM_EVENT_USER_RESUME	(PM_EVENT_USER | PM_EVENT_RESUME)
-#define PM_EVENT_REMOTE_WAKEUP	(PM_EVENT_REMOTE | PM_EVENT_RESUME)
+#define PM_EVENT_REMOTE_RESUME	(PM_EVENT_REMOTE | PM_EVENT_RESUME)
 #define PM_EVENT_AUTO_SUSPEND	(PM_EVENT_AUTO | PM_EVENT_SUSPEND)
 #define PM_EVENT_AUTO_RESUME	(PM_EVENT_AUTO | PM_EVENT_RESUME)

@@ -291,15 +265,15 @@ struct pm_ext_ops {
 #define PMSG_THAW	((struct pm_message){ .event = PM_EVENT_THAW, })
 #define PMSG_RESTORE	((struct pm_message){ .event = PM_EVENT_RESTORE, })
 #define PMSG_RECOVER	((struct pm_message){ .event = PM_EVENT_RECOVER, })
-#define PMSG_USER_SUSPEND	((struct pm_messge) \
+#define PMSG_USER_SUSPEND	((struct pm_message) \
 					{ .event = PM_EVENT_USER_SUSPEND, })
-#define PMSG_USER_RESUME	((struct pm_messge) \
+#define PMSG_USER_RESUME	((struct pm_message) \
 					{ .event = PM_EVENT_USER_RESUME, })
-#define PMSG_REMOTE_RESUME	((struct pm_messge) \
+#define PMSG_REMOTE_RESUME	((struct pm_message) \
 					{ .event = PM_EVENT_REMOTE_RESUME, })
-#define PMSG_AUTO_SUSPEND	((struct pm_messge) \
+#define PMSG_AUTO_SUSPEND	((struct pm_message) \
 					{ .event = PM_EVENT_AUTO_SUSPEND, })
-#define PMSG_AUTO_RESUME		((struct pm_messge) \
+#define PMSG_AUTO_RESUME	((struct pm_message) \
 					{ .event = PM_EVENT_AUTO_RESUME, })

 /**
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -38,6 +38,24 @@ struct uio_mem {

 #define MAX_UIO_MAPS	5

+struct uio_portio;
+
+/**
+ * struct uio_port - description of a UIO port region
+ * @start:		start of port region
+ * @size:		size of port region
+ * @porttype:		type of port (see UIO_PORT_* below)
+ * @portio:		for use by the UIO core only.
+ */
+struct uio_port {
+	unsigned long		start;
+	unsigned long		size;
+	int			porttype;
+	struct uio_portio	*portio;
+};
+
+#define MAX_UIO_PORT_REGIONS	5
+
 struct uio_device;

 /**
@@ -46,6 +64,7 @@ struct uio_device;
 * @name:		device name
 * @version:		device driver version
 * @mem:		list of mappable memory regions, size==0 for end of list
+ * @port:		list of port regions, size==0 for end of list
 * @irq:		interrupt number or UIO_IRQ_CUSTOM
 * @irq_flags:		flags for request_irq()
 * @priv:		optional private data
@@ -57,9 +76,10 @@ struct uio_device;
 */
 struct uio_info {
 	struct uio_device	*uio_dev;
-	char			*name;
-	char			*version;
+	const char		*name;
+	const char		*version;
 	struct uio_mem		mem[MAX_UIO_MAPS];
+	struct uio_port		port[MAX_UIO_PORT_REGIONS];
 	long			irq;
 	unsigned long		irq_flags;
 	void			*priv;
@@ -92,4 +112,10 @@ extern void uio_event_notify(struct uio_info *info);
 #define UIO_MEM_LOGICAL	2
 #define UIO_MEM_VIRTUAL 3

+/* defines for uio_port->porttype */
+#define UIO_PORT_NONE	0
+#define UIO_PORT_X86	1
+#define UIO_PORT_GPIO	2
+#define UIO_PORT_OTHER	3
+
 #endif /* _LINUX_UIO_DRIVER_H_ */