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, 61 insertions, 199 deletions

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index f4784c0fe975..903576df88dc 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -34,8 +34,10 @@
 #include <linux/device.h>	/* for struct device */
 #include <linux/sched.h>	/* for completion */
 #include <linux/mutex.h>
+#include <linux/of.h>		/* for struct device_node */
 
 extern struct bus_type i2c_bus_type;
+extern struct device_type i2c_adapter_type;
 
 /* --- General options ------------------------------------------------	*/
 
@@ -53,10 +55,12 @@ struct i2c_board_info;
  * on a bus (or read from them). Apart from two basic transfer functions to
  * transmit one message at a time, a more complex version can be used to
  * transmit an arbitrary number of messages without interruption.
+ * @count must be be less than 64k since msg.len is u16.
  */
-extern int i2c_master_send(struct i2c_client *client, const char *buf,
+extern int i2c_master_send(const struct i2c_client *client, const char *buf,
+			   int count);
+extern int i2c_master_recv(const struct i2c_client *client, char *buf,
 			   int count);
-extern int i2c_master_recv(struct i2c_client *client, char *buf, int count);
 
 /* Transfer num messages.
  */
@@ -75,30 +79,31 @@ extern s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
 /* Now follow the 'nice' access routines. These also document the calling
    conventions of i2c_smbus_xfer. */
 
-extern s32 i2c_smbus_read_byte(struct i2c_client *client);
-extern s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value);
-extern s32 i2c_smbus_read_byte_data(struct i2c_client *client, u8 command);
-extern s32 i2c_smbus_write_byte_data(struct i2c_client *client,
+extern s32 i2c_smbus_read_byte(const struct i2c_client *client);
+extern s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value);
+extern s32 i2c_smbus_read_byte_data(const struct i2c_client *client,
+				    u8 command);
+extern s32 i2c_smbus_write_byte_data(const struct i2c_client *client,
 				     u8 command, u8 value);
-extern s32 i2c_smbus_read_word_data(struct i2c_client *client, u8 command);
-extern s32 i2c_smbus_write_word_data(struct i2c_client *client,
+extern s32 i2c_smbus_read_word_data(const struct i2c_client *client,
+				    u8 command);
+extern s32 i2c_smbus_write_word_data(const struct i2c_client *client,
 				     u8 command, u16 value);
 /* Returns the number of read bytes */
-extern s32 i2c_smbus_read_block_data(struct i2c_client *client,
+extern s32 i2c_smbus_read_block_data(const struct i2c_client *client,
 				     u8 command, u8 *values);
-extern s32 i2c_smbus_write_block_data(struct i2c_client *client,
+extern s32 i2c_smbus_write_block_data(const struct i2c_client *client,
 				      u8 command, u8 length, const u8 *values);
 /* Returns the number of read bytes */
-extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client,
+extern s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client,
 					 u8 command, u8 length, u8 *values);
-extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client,
+extern s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client,
 					  u8 command, u8 length,
 					  const u8 *values);
 #endif /* I2C */
 
 /**
  * struct i2c_driver - represent an I2C device driver
- * @id: Unique driver ID (optional)
  * @class: What kind of i2c device we instantiate (for detect)
  * @attach_adapter: Callback for bus addition (for legacy drivers)
  * @detach_adapter: Callback for bus removal (for legacy drivers)
@@ -107,11 +112,12 @@ extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client,
  * @shutdown: Callback for device shutdown
  * @suspend: Callback for device suspend
  * @resume: Callback for device resume
+ * @alert: Alert callback, for example for the SMBus alert protocol
  * @command: Callback for bus-wide signaling (optional)
  * @driver: Device driver model driver
  * @id_table: List of I2C devices supported by this driver
  * @detect: Callback for device detection
- * @address_data: The I2C addresses to probe, ignore or force (for detect)
+ * @address_list: The I2C addresses to probe (for detect)
  * @clients: List of detected clients we created (for i2c-core use only)
  *
  * The driver.owner field should be set to the module owner of this driver.
@@ -135,7 +141,6 @@ extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client,
  * not allowed.
  */
 struct i2c_driver {
-	int id;
 	unsigned int class;
 
 	/* Notifies the driver that a new bus has appeared or is about to be
@@ -154,6 +159,13 @@ struct i2c_driver {
 	int (*suspend)(struct i2c_client *, pm_message_t mesg);
 	int (*resume)(struct i2c_client *);
 
+	/* Alert callback, for example for the SMBus alert protocol.
+	 * The format and meaning of the data value depends on the protocol.
+	 * For the SMBus alert protocol, there is a single bit of data passed
+	 * as the alert response's low bit ("event flag").
+	 */
+	void (*alert)(struct i2c_client *, unsigned int data);
+
 	/* a ioctl like command that can be used to perform specific functions
 	 * with the device.
 	 */
@@ -163,8 +175,8 @@ struct i2c_driver {
 	const struct i2c_device_id *id_table;
 
 	/* Device detection callback for automatic device creation */
-	int (*detect)(struct i2c_client *, int kind, struct i2c_board_info *);
-	const struct i2c_client_address_data *address_data;
+	int (*detect)(struct i2c_client *, struct i2c_board_info *);
+	const unsigned short *address_list;
 	struct list_head clients;
 };
 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
@@ -226,6 +238,7 @@ static inline void i2c_set_clientdata(struct i2c_client *dev, void *data)
  * @addr: stored in i2c_client.addr
  * @platform_data: stored in i2c_client.dev.platform_data
  * @archdata: copied into i2c_client.dev.archdata
+ * @of_node: pointer to OpenFirmware device node
  * @irq: stored in i2c_client.irq
  *
  * I2C doesn't actually support hardware probing, although controllers and
@@ -245,6 +258,9 @@ struct i2c_board_info {
 	unsigned short	addr;
 	void		*platform_data;
 	struct dev_archdata	*archdata;
+#ifdef CONFIG_OF
+	struct device_node *of_node;
+#endif
 	int		irq;
 };
 
@@ -272,12 +288,18 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info);
 
 /* If you don't know the exact address of an I2C device, use this variant
  * instead, which can probe for device presence in a list of possible
- * addresses.
+ * addresses. The "probe" callback function is optional. If it is provided,
+ * it must return 1 on successful probe, 0 otherwise. If it is not provided,
+ * a default probing method is used.
  */
 extern struct i2c_client *
 i2c_new_probed_device(struct i2c_adapter *adap,
 		      struct i2c_board_info *info,
-		      unsigned short const *addr_list);
+		      unsigned short const *addr_list,
+		      int (*probe)(struct i2c_adapter *, unsigned short addr));
+
+/* Common custom probe functions */
+extern int i2c_probe_func_quick_read(struct i2c_adapter *, unsigned short addr);
 
 /* For devices that use several addresses, use i2c_new_dummy() to make
  * client handles for the extra addresses.
@@ -334,14 +356,13 @@ struct i2c_algorithm {
  */
 struct i2c_adapter {
 	struct module *owner;
-	unsigned int id;
+	unsigned int id __deprecated;
 	unsigned int class;		  /* classes to allow probing for */
 	const struct i2c_algorithm *algo; /* the algorithm to access the bus */
 	void *algo_data;
 
 	/* data fields that are valid for all devices	*/
-	u8 level; 			/* nesting level for lockdep */
-	struct mutex bus_lock;
+	struct rt_mutex bus_lock;
 
 	int timeout;			/* in jiffies */
 	int retries;
@@ -350,6 +371,9 @@ struct i2c_adapter {
 	int nr;
 	char name[48];
 	struct completion dev_released;
+
+	struct mutex userspace_clients_lock;
+	struct list_head userspace_clients;
 };
 #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
 
@@ -363,6 +387,21 @@ static inline void i2c_set_adapdata(struct i2c_adapter *dev, void *data)
 	dev_set_drvdata(&dev->dev, data);
 }
 
+static inline struct i2c_adapter *
+i2c_parent_is_i2c_adapter(const struct i2c_adapter *adapter)
+{
+	struct device *parent = adapter->dev.parent;
+
+	if (parent != NULL && parent->type == &i2c_adapter_type)
+		return to_i2c_adapter(parent);
+	else
+		return NULL;
+}
+
+/* Adapter locking functions, exported for shared pin cases */
+void i2c_lock_adapter(struct i2c_adapter *);
+void i2c_unlock_adapter(struct i2c_adapter *);
+
 /*flags for the client struct: */
 #define I2C_CLIENT_PEC	0x04		/* Use Packet Error Checking */
 #define I2C_CLIENT_TEN	0x10		/* we have a ten bit chip address */
@@ -371,22 +410,9 @@ static inline void i2c_set_adapdata(struct i2c_adapter *dev, void *data)
 
 /* i2c adapter classes (bitmask) */
 #define I2C_CLASS_HWMON		(1<<0)	/* lm_sensors, ... */
-#define I2C_CLASS_TV_ANALOG	(1<<1)	/* bttv + friends */
-#define I2C_CLASS_TV_DIGITAL	(1<<2)	/* dvb cards */
 #define I2C_CLASS_DDC		(1<<3)	/* DDC bus on graphics adapters */
 #define I2C_CLASS_SPD		(1<<7)	/* SPD EEPROMs and similar */
 
-/* i2c_client_address_data is the struct for holding default client
- * addresses for a driver and for the parameters supplied on the
- * command line
- */
-struct i2c_client_address_data {
-	const unsigned short *normal_i2c;
-	const unsigned short *probe;
-	const unsigned short *ignore;
-	const unsigned short * const *forces;
-};
-
 /* Internal numbers to terminate lists */
 #define I2C_CLIENT_END		0xfffeU
 
@@ -564,168 +590,4 @@ union i2c_smbus_data {
 #define I2C_SMBUS_BLOCK_PROC_CALL   7		/* SMBus 2.0 */
 #define I2C_SMBUS_I2C_BLOCK_DATA    8
 
-
-#ifdef __KERNEL__
-
-/* These defines are used for probing i2c client addresses */
-/* The length of the option lists */
-#define I2C_CLIENT_MAX_OPTS 48
-
-/* Default fill of many variables */
-#define I2C_CLIENT_DEFAULTS {I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
-			     I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END}
-
-/* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the
-   module header */
-
-#define I2C_CLIENT_MODULE_PARM(var,desc) \
-  static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \
-  static unsigned int var##_num; \
-  module_param_array(var, short, &var##_num, 0); \
-  MODULE_PARM_DESC(var, desc)
-
-#define I2C_CLIENT_MODULE_PARM_FORCE(name)				\
-I2C_CLIENT_MODULE_PARM(force_##name,					\
-		       "List of adapter,address pairs which are "	\
-		       "unquestionably assumed to contain a `"		\
-		       # name "' chip")
-
-
-#define I2C_CLIENT_INSMOD_COMMON					\
-I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan "	\
-		       "additionally");					\
-I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to "	\
-		       "scan");						\
-static const struct i2c_client_address_data addr_data = {		\
-	.normal_i2c	= normal_i2c,					\
-	.probe		= probe,					\
-	.ignore		= ignore,					\
-	.forces		= forces,					\
-}
-
-#define I2C_CLIENT_FORCE_TEXT \
-	"List of adapter,address pairs to boldly assume to be present"
-
-/* These are the ones you want to use in your own drivers. Pick the one
-   which matches the number of devices the driver differenciates between. */
-#define I2C_CLIENT_INSMOD						\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-static const unsigned short * const forces[] = { force, NULL };		\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_1(chip1)					\
-enum chips { any_chip, chip1 };						\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-static const unsigned short * const forces[] =	{ force,		\
-	force_##chip1, NULL };						\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_2(chip1, chip2)				\
-enum chips { any_chip, chip1, chip2 };					\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
-static const unsigned short * const forces[] =	{ force,		\
-	force_##chip1, force_##chip2, NULL };				\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3)			\
-enum chips { any_chip, chip1, chip2, chip3 };				\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
-static const unsigned short * const forces[] =	{ force,		\
-	force_##chip1, force_##chip2, force_##chip3, NULL };		\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4)			\
-enum chips { any_chip, chip1, chip2, chip3, chip4 };			\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
-static const unsigned short * const forces[] =	{ force,		\
-	force_##chip1, force_##chip2, force_##chip3,			\
-	force_##chip4, NULL};						\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5)		\
-enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 };		\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
-static const unsigned short * const forces[] = { force,			\
-	force_##chip1, force_##chip2, force_##chip3,			\
-	force_##chip4, force_##chip5, NULL };				\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6)	\
-enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 };	\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip6);					\
-static const unsigned short * const forces[] = { force,			\
-	force_##chip1, force_##chip2, force_##chip3,			\
-	force_##chip4, force_##chip5, force_##chip6, NULL };		\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \
-enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,	\
-	     chip7 };							\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip6);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip7);					\
-static const unsigned short * const forces[] = { force,			\
-	force_##chip1, force_##chip2, force_##chip3,			\
-	force_##chip4, force_##chip5, force_##chip6,			\
-	force_##chip7, NULL };						\
-I2C_CLIENT_INSMOD_COMMON
-
-#define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \
-enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,	\
-	     chip7, chip8 };						\
-I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT);			\
-I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip6);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip7);					\
-I2C_CLIENT_MODULE_PARM_FORCE(chip8);					\
-static const unsigned short * const forces[] = { force,			\
-	force_##chip1, force_##chip2, force_##chip3,			\
-	force_##chip4, force_##chip5, force_##chip6,			\
-	force_##chip7, force_##chip8, NULL };				\
-I2C_CLIENT_INSMOD_COMMON
-#endif /* __KERNEL__ */
 #endif /* _LINUX_I2C_H */