Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

Pull i2c updates from Jean Delvare:
 "The most important changes here are a big cleanup of the i2c-piix4
  driver, cleanups and interrupt support to the i2c-i801 driver, and
  support for the SCCB protocol."

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-omap: Add support for I2C_M_STOP message flag
  i2c: Fall back to emulated SMBus if the operation isn't supported natively
  i2c: Add SCCB support
  i2c-tiny-usb: Add support for the Robofuzz OSIF USB/I2C converter
  i2c-i801: Enable IRQ for byte_by_byte transactions
  i2c-i801: Enable interrupts on ICH5/7/8/9/10
  i2c-i801: Enable IRQ for SMBus transactions
  i2c-i801: Consolidate polling
  i2c-i801: Drop ENABLE_INT9
  i2c-i801: Rename some SMBHSTCNT bit constants
  i2c-i801: Check and return errors during byte-by-byte transfers
  i2c-i801: Clear only status bits in HST_STS
  i2c-i801: Refactor use of LAST_BYTE in i801_block_transaction_byte_by_byte
  i2c-smbus: Use module_i2c_driver()
  i2c/writing-clients: Mention module_i2c_driver()
  i2c-piix4: Support AMD auxiliary SMBus controller
  i2c-piix4: Separate registration and probing code
  i2c-piix4: Eliminate piix4_smba global variable
  i2c/busses: Use module_pci_driver
  i2c: Update Guenter Roeck's e-mail address

Documentation/i2c/busses/i2c-i801

@@ -38,9 +38,10 @@ Module Parameters
 Disable selected features normally supported by the device. This makes it
 possible to work around possible driver or hardware bugs if the feature in
 question doesn't work as intended for whatever reason. Bit values:
-  1  disable SMBus PEC
-  2  disable the block buffer
-  8  disable the I2C block read functionality
+ 0x01  disable SMBus PEC
+ 0x02  disable the block buffer
+ 0x08  disable the I2C block read functionality
+ 0x10  don't use interrupts
 
 
 Description
@@ -86,6 +87,12 @@ SMBus 2.0 Support
 The 82801DB (ICH4) and later chips support several SMBus 2.0 features.
 
 
+Interrupt Support
+-----------------
+
+PCI interrupt support is supported on the 82801EB (ICH5) and later chips.
+
+
 Hidden ICH SMBus
 ----------------
 

Documentation/i2c/busses/i2c-piix4

@@ -8,6 +8,11 @@ Supported adapters:
     Datasheet: Only available via NDA from ServerWorks
   * ATI IXP200, IXP300, IXP400, SB600, SB700 and SB800 southbridges
     Datasheet: Not publicly available
+    SB700 register reference available at:
+    http://support.amd.com/us/Embedded_TechDocs/43009_sb7xx_rrg_pub_1.00.pdf
+  * AMD SP5100 (SB700 derivative found on some server mainboards)
+    Datasheet: Publicly available at the AMD website
+    http://support.amd.com/us/Embedded_TechDocs/44413.pdf
   * AMD Hudson-2
     Datasheet: Not publicly available
   * Standard Microsystems (SMSC) SLC90E66 (Victory66) southbridge
@@ -68,6 +73,10 @@ this driver on those mainboards.
 The ServerWorks Southbridges, the Intel 440MX, and the Victory66 are
 identical to the PIIX4 in I2C/SMBus support.
 
+The AMD SB700 and SP5100 chipsets implement two PIIX4-compatible SMBus
+controllers. If your BIOS initializes the secondary controller, it will
+be detected by this driver as an "Auxiliary SMBus Host Controller".
+
 If you own Force CPCI735 motherboard or other OSB4 based systems you may need
 to change the SMBus Interrupt Select register so the SMBus controller uses
 the SMI mode.

Documentation/i2c/writing-clients

@@ -245,21 +245,17 @@ static int __init foo_init(void)
 {
 	return i2c_add_driver(&foo_driver);
 }
+module_init(foo_init);
 
 static void __exit foo_cleanup(void)
 {
 	i2c_del_driver(&foo_driver);
 }
+module_exit(foo_cleanup);
 
-/* Substitute your own name and email address */
-MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>"
-MODULE_DESCRIPTION("Driver for Barf Inc. Foo I2C devices");
-
-/* a few non-GPL license types are also allowed */
-MODULE_LICENSE("GPL");
+The module_i2c_driver() macro can be used to reduce above code.
 
-module_init(foo_init);
-module_exit(foo_cleanup);
+module_i2c_driver(foo_driver);
 
 Note that some functions are marked by `__init'.  These functions can
 be removed after kernel booting (or module loading) is completed.
@@ -267,6 +263,17 @@ Likewise, functions marked by `__exit' are dropped by the compiler when
 the code is built into the kernel, as they would never be called.
 
 
+Driver Information
+==================
+
+/* Substitute your own name and email address */
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>"
+MODULE_DESCRIPTION("Driver for Barf Inc. Foo I2C devices");
+
+/* a few non-GPL license types are also allowed */
+MODULE_LICENSE("GPL");
+
+
 Power Management
 ================
 

drivers/i2c/busses/Kconfig

@@ -133,7 +133,7 @@ config I2C_PIIX4
 	    ATI IXP300
 	    ATI IXP400
 	    ATI SB600
-	    ATI SB700
+	    ATI SB700/SP5100
 	    ATI SB800
 	    AMD Hudson-2
 	    Serverworks OSB4
@@ -143,6 +143,10 @@ config I2C_PIIX4
 	    Serverworks HT-1100
 	    SMSC Victory66
 
+	  Some AMD chipsets contain two PIIX4-compatible SMBus
+	  controllers. This driver will attempt to use both controllers
+	  on the SB700/SP5100, if they have been initialized by the BIOS.
+
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-piix4.
 

drivers/i2c/busses/i2c-ali1535.c

@@ -531,15 +531,7 @@ static struct pci_driver ali1535_driver = {
 	.remove		= __devexit_p(ali1535_remove),
 };
 
-static int __init i2c_ali1535_init(void)
-{
-	return pci_register_driver(&ali1535_driver);
-}
-
-static void __exit i2c_ali1535_exit(void)
-{
-	pci_unregister_driver(&ali1535_driver);
-}
+module_pci_driver(ali1535_driver);
 
 MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
 	      "Philip Edelbrock <phil@netroedge.com>, "
@@ -547,6 +539,3 @@ MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
 	      "and Dan Eaton <dan.eaton@rocketlogix.com>");
 MODULE_DESCRIPTION("ALI1535 SMBus driver");
 MODULE_LICENSE("GPL");
-
-module_init(i2c_ali1535_init);
-module_exit(i2c_ali1535_exit);

drivers/i2c/busses/i2c-ali1563.c

@@ -431,18 +431,6 @@ static struct pci_driver ali1563_pci_driver = {
 	.remove		= __devexit_p(ali1563_remove),
 };
 
-static int __init ali1563_init(void)
-{
-	return pci_register_driver(&ali1563_pci_driver);
-}
-
-module_init(ali1563_init);
-
-static void __exit ali1563_exit(void)
-{
-	pci_unregister_driver(&ali1563_pci_driver);
-}
-
-module_exit(ali1563_exit);
+module_pci_driver(ali1563_pci_driver);
 
 MODULE_LICENSE("GPL");

drivers/i2c/busses/i2c-ali15x3.c

@@ -513,21 +513,10 @@ static struct pci_driver ali15x3_driver = {
 	.remove		= __devexit_p(ali15x3_remove),
 };
 
-static int __init i2c_ali15x3_init(void)
-{
-	return pci_register_driver(&ali15x3_driver);
-}
-
-static void __exit i2c_ali15x3_exit(void)
-{
-	pci_unregister_driver(&ali15x3_driver);
-}
+module_pci_driver(ali15x3_driver);
 
 MODULE_AUTHOR ("Frodo Looijaard <frodol@dds.nl>, "
 		"Philip Edelbrock <phil@netroedge.com>, "
 		"and Mark D. Studebaker <mdsxyz123@yahoo.com>");
 MODULE_DESCRIPTION("ALI15X3 SMBus driver");
 MODULE_LICENSE("GPL");
-
-module_init(i2c_ali15x3_init);
-module_exit(i2c_ali15x3_exit);

drivers/i2c/busses/i2c-amd756.c

@@ -410,21 +410,10 @@ static struct pci_driver amd756_driver = {
 	.remove		= __devexit_p(amd756_remove),
 };
 
-static int __init amd756_init(void)
-{
-	return pci_register_driver(&amd756_driver);
-}
-
-static void __exit amd756_exit(void)
-{
-	pci_unregister_driver(&amd756_driver);
-}
+module_pci_driver(amd756_driver);
 
 MODULE_AUTHOR("Merlin Hughes <merlin@merlin.org>");
 MODULE_DESCRIPTION("AMD756/766/768/8111 and nVidia nForce SMBus driver");
 MODULE_LICENSE("GPL");
 
 EXPORT_SYMBOL(amd756_smbus);
-
-module_init(amd756_init)
-module_exit(amd756_exit)

drivers/i2c/busses/i2c-amd8111.c

@@ -491,15 +491,4 @@ static struct pci_driver amd8111_driver = {
 	.remove		= __devexit_p(amd8111_remove),
 };
 
-static int __init i2c_amd8111_init(void)
-{
-	return pci_register_driver(&amd8111_driver);
-}
-
-static void __exit i2c_amd8111_exit(void)
-{
-	pci_unregister_driver(&amd8111_driver);
-}
-
-module_init(i2c_amd8111_init);
-module_exit(i2c_amd8111_exit);
+module_pci_driver(amd8111_driver);

drivers/i2c/busses/i2c-designware-pcidrv.c

@@ -374,17 +374,7 @@ static struct pci_driver dw_i2c_driver = {
 	},
 };
 
-static int __init dw_i2c_init_driver(void)
-{
-	return  pci_register_driver(&dw_i2c_driver);
-}
-module_init(dw_i2c_init_driver);
-
-static void __exit dw_i2c_exit_driver(void)
-{
-	pci_unregister_driver(&dw_i2c_driver);
-}
-module_exit(dw_i2c_exit_driver);
+module_pci_driver(dw_i2c_driver);
 
 MODULE_AUTHOR("Baruch Siach <baruch@tkos.co.il>");
 MODULE_DESCRIPTION("Synopsys DesignWare PCI I2C bus adapter");

drivers/i2c/busses/i2c-diolan-u2c.c

@@ -517,6 +517,6 @@ static struct usb_driver diolan_u2c_driver = {
 
 module_usb_driver(diolan_u2c_driver);
 
-MODULE_AUTHOR("Guenter Roeck <guenter.roeck@ericsson.com>");
+MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
 MODULE_DESCRIPTION(DRIVER_NAME " driver");
 MODULE_LICENSE("GPL");

drivers/i2c/busses/i2c-eg20t.c

@@ -953,17 +953,7 @@ static struct pci_driver pch_pcidriver = {
 	.resume = pch_i2c_resume
 };
 
-static int __init pch_pci_init(void)
-{
-	return pci_register_driver(&pch_pcidriver);
-}
-module_init(pch_pci_init);
-
-static void __exit pch_pci_exit(void)
-{
-	pci_unregister_driver(&pch_pcidriver);
-}
-module_exit(pch_pci_exit);
+module_pci_driver(pch_pcidriver);
 
 MODULE_DESCRIPTION("Intel EG20T PCH/LAPIS Semico ML7213/ML7223/ML7831 IOH I2C");
 MODULE_LICENSE("GPL");

drivers/i2c/busses/i2c-hydra.c

@@ -156,23 +156,8 @@ static struct pci_driver hydra_driver = {
 	.remove		= __devexit_p(hydra_remove),
 };
 
-static int __init i2c_hydra_init(void)
-{
-	return pci_register_driver(&hydra_driver);
-}
-
-
-static void __exit i2c_hydra_exit(void)
-{
-	pci_unregister_driver(&hydra_driver);
-}
-
-
+module_pci_driver(hydra_driver);
 
 MODULE_AUTHOR("Geert Uytterhoeven <geert@linux-m68k.org>");
 MODULE_DESCRIPTION("i2c for Apple Hydra Mac I/O");
 MODULE_LICENSE("GPL");
-
-module_init(i2c_hydra_init);
-module_exit(i2c_hydra_exit);
-

drivers/i2c/busses/i2c-intel-mid.c

@@ -1116,18 +1116,7 @@ static struct pci_driver intel_mid_i2c_driver = {
 	.remove		= __devexit_p(intel_mid_i2c_remove),
 };
 
-static int __init intel_mid_i2c_init(void)
-{
-	return pci_register_driver(&intel_mid_i2c_driver);
-}
-
-static void __exit intel_mid_i2c_exit(void)
-{
-	pci_unregister_driver(&intel_mid_i2c_driver);
-}
-
-module_init(intel_mid_i2c_init);
-module_exit(intel_mid_i2c_exit);
+module_pci_driver(intel_mid_i2c_driver);
 
 MODULE_AUTHOR("Ba Zheng <zheng.ba@intel.com>");
 MODULE_DESCRIPTION("I2C driver for Moorestown Platform");

drivers/i2c/busses/i2c-nforce2.c

@@ -453,16 +453,4 @@ static struct pci_driver nforce2_driver = {
 	.remove		= __devexit_p(nforce2_remove),
 };
 
-static int __init nforce2_init(void)
-{
-	return pci_register_driver(&nforce2_driver);
-}
-
-static void __exit nforce2_exit(void)
-{
-	pci_unregister_driver(&nforce2_driver);
-}
-
-module_init(nforce2_init);
-module_exit(nforce2_exit);
-
+module_pci_driver(nforce2_driver);

drivers/i2c/busses/i2c-omap.c

@@ -545,6 +545,8 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap,
 	if (dev->speed > 400)
 		w |= OMAP_I2C_CON_OPMODE_HS;
 
+	if (msg->flags & I2C_M_STOP)
+		stop = 1;
 	if (msg->flags & I2C_M_TEN)
 		w |= OMAP_I2C_CON_XA;
 	if (!(msg->flags & I2C_M_RD))
@@ -658,7 +660,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 static u32
 omap_i2c_func(struct i2c_adapter *adap)
 {
-	return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
+	return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK) |
+	       I2C_FUNC_PROTOCOL_MANGLING;
 }
 
 static inline void

drivers/i2c/busses/i2c-pasemi.c

@@ -415,19 +415,8 @@ static struct pci_driver pasemi_smb_driver = {
 	.remove		= __devexit_p(pasemi_smb_remove),
 };
 
-static int __init pasemi_smb_init(void)
-{
-	return pci_register_driver(&pasemi_smb_driver);
-}
-
-static void __exit pasemi_smb_exit(void)
-{
-	pci_unregister_driver(&pasemi_smb_driver);
-}
+module_pci_driver(pasemi_smb_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
 MODULE_DESCRIPTION("PA Semi PWRficient SMBus driver");
-
-module_init(pasemi_smb_init);
-module_exit(pasemi_smb_exit);

drivers/i2c/busses/i2c-pxa-pci.c

@@ -163,17 +163,7 @@ static struct pci_driver ce4100_i2c_driver = {
 	.remove         = __devexit_p(ce4100_i2c_remove),
 };
 
-static int __init ce4100_i2c_init(void)
-{
-	return pci_register_driver(&ce4100_i2c_driver);
-}
-module_init(ce4100_i2c_init);
-
-static void __exit ce4100_i2c_exit(void)
-{
-	pci_unregister_driver(&ce4100_i2c_driver);
-}
-module_exit(ce4100_i2c_exit);
+module_pci_driver(ce4100_i2c_driver);
 
 MODULE_DESCRIPTION("CE4100 PCI-I2C glue code for PXA's driver");
 MODULE_LICENSE("GPL v2");

drivers/i2c/busses/i2c-sis630.c

@@ -513,21 +513,8 @@ static struct pci_driver sis630_driver = {
 	.remove		= __devexit_p(sis630_remove),
 };
 
-static int __init i2c_sis630_init(void)
-{
-	return pci_register_driver(&sis630_driver);
-}
-
-
-static void __exit i2c_sis630_exit(void)
-{
-	pci_unregister_driver(&sis630_driver);
-}
-
+module_pci_driver(sis630_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Alexander Malysh <amalysh@web.de>");
 MODULE_DESCRIPTION("SIS630 SMBus driver");
-
-module_init(i2c_sis630_init);
-module_exit(i2c_sis630_exit);

drivers/i2c/busses/i2c-sis96x.c

@@ -324,21 +324,8 @@ static struct pci_driver sis96x_driver = {
 	.remove		= __devexit_p(sis96x_remove),
 };
 
-static int __init i2c_sis96x_init(void)
-{
-	return pci_register_driver(&sis96x_driver);
-}
-
-static void __exit i2c_sis96x_exit(void)
-{
-	pci_unregister_driver(&sis96x_driver);
-}
+module_pci_driver(sis96x_driver);
 
 MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");
 MODULE_DESCRIPTION("SiS96x SMBus driver");
 MODULE_LICENSE("GPL");
-
-/* Register initialization functions using helper macros */
-module_init(i2c_sis96x_init);
-module_exit(i2c_sis96x_exit);
-

drivers/i2c/busses/i2c-tiny-usb.c

@@ -143,6 +143,7 @@ static const struct i2c_algorithm usb_algorithm = {
 static const struct usb_device_id i2c_tiny_usb_table[] = {
 	{ USB_DEVICE(0x0403, 0xc631) },   /* FTDI */
 	{ USB_DEVICE(0x1c40, 0x0534) },   /* EZPrototypes */
+	{ USB_DEVICE(0x1964, 0x0001) },   /* Robofuzz OSIF */
 	{ }                               /* Terminating entry */
 };
 

drivers/i2c/busses/i2c-via.c

@@ -161,20 +161,8 @@ static struct pci_driver vt586b_driver = {
 	.remove		= __devexit_p(vt586b_remove),
 };
 
-static int __init i2c_vt586b_init(void)
-{
-	return pci_register_driver(&vt586b_driver);
-}
-
-static void __exit i2c_vt586b_exit(void)
-{
-	pci_unregister_driver(&vt586b_driver);
-}
-
+module_pci_driver(vt586b_driver);
 
 MODULE_AUTHOR("Kyösti Mälkki <kmalkki@cc.hut.fi>");
 MODULE_DESCRIPTION("i2c for Via vt82c586b southbridge");
 MODULE_LICENSE("GPL");
-
-module_init(i2c_vt586b_init);
-module_exit(i2c_vt586b_exit);

drivers/i2c/i2c-core.c

@@ -2122,7 +2122,7 @@ s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
 	int try;
 	s32 res;
 
-	flags &= I2C_M_TEN | I2C_CLIENT_PEC;
+	flags &= I2C_M_TEN | I2C_CLIENT_PEC | I2C_CLIENT_SCCB;
 
 	if (adapter->algo->smbus_xfer) {
 		i2c_lock_adapter(adapter);
@@ -2140,11 +2140,17 @@ s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
 				break;
 		}
 		i2c_unlock_adapter(adapter);
-	} else
-		res = i2c_smbus_xfer_emulated(adapter, addr, flags, read_write,
-					      command, protocol, data);
 
-	return res;
+		if (res != -EOPNOTSUPP || !adapter->algo->master_xfer)
+			return res;
+		/*
+		 * Fall back to i2c_smbus_xfer_emulated if the adapter doesn't
+		 * implement native support for the SMBus operation.
+		 */
+	}
+
+	return i2c_smbus_xfer_emulated(adapter, addr, flags, read_write,
+				       command, protocol, data);
 }
 EXPORT_SYMBOL(i2c_smbus_xfer);
 

drivers/i2c/i2c-smbus.c

@@ -245,18 +245,7 @@ int i2c_handle_smbus_alert(struct i2c_client *ara)
 }
 EXPORT_SYMBOL_GPL(i2c_handle_smbus_alert);
 
-static int __init i2c_smbus_init(void)
-{
-	return i2c_add_driver(&smbalert_driver);
-}
-
-static void __exit i2c_smbus_exit(void)
-{
-	i2c_del_driver(&smbalert_driver);
-}
-
-module_init(i2c_smbus_init);
-module_exit(i2c_smbus_exit);
+module_i2c_driver(smbalert_driver);
 
 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
 MODULE_DESCRIPTION("SMBus protocol extensions support");

drivers/i2c/muxes/i2c-mux-pca9541.c

@@ -396,6 +396,6 @@ static struct i2c_driver pca9541_driver = {
 
 module_i2c_driver(pca9541_driver);
 
-MODULE_AUTHOR("Guenter Roeck <guenter.roeck@ericsson.com>");
+MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
 MODULE_DESCRIPTION("PCA9541 I2C master selector driver");
 MODULE_LICENSE("GPL v2");

drivers/staging/media/go7007/wis-i2c.h

@@ -25,11 +25,6 @@
 #define	I2C_DRIVERID_WIS_TW2804		0xf0f6
 #define	I2C_DRIVERID_S2250		0xf0f7
 
-/* Flag to indicate that the client needs to be accessed with SCCB semantics */
-/* We re-use the I2C_M_TEN value so the flag passes through the masks in the
- * core I2C code.  Major kludge, but the I2C layer ain't exactly flexible. */
-#define	I2C_CLIENT_SCCB			0x10
-
 /* Definitions for new video decoder commands */
 
 struct video_decoder_resolution {

include/linux/i2c.h

@@ -425,6 +425,8 @@ void i2c_unlock_adapter(struct i2c_adapter *);
 #define I2C_CLIENT_TEN	0x10		/* we have a ten bit chip address */
 					/* Must equal I2C_M_TEN below */
 #define I2C_CLIENT_WAKE	0x80		/* for board_info; true iff can wake */
+#define I2C_CLIENT_SCCB	0x9000		/* Use Omnivision SCCB protocol */
+					/* Must match I2C_M_STOP|IGNORE_NAK */
 
 /* i2c adapter classes (bitmask) */
 #define I2C_CLASS_HWMON		(1<<0)	/* lm_sensors, ... */
@@ -541,6 +543,7 @@ struct i2c_msg {
 	__u16 flags;
 #define I2C_M_TEN		0x0010	/* this is a ten bit chip address */
 #define I2C_M_RD		0x0001	/* read data, from slave to master */
+#define I2C_M_STOP		0x8000	/* if I2C_FUNC_PROTOCOL_MANGLING */
 #define I2C_M_NOSTART		0x4000	/* if I2C_FUNC_NOSTART */
 #define I2C_M_REV_DIR_ADDR	0x2000	/* if I2C_FUNC_PROTOCOL_MANGLING */
 #define I2C_M_IGNORE_NAK	0x1000	/* if I2C_FUNC_PROTOCOL_MANGLING */