Merge kroah.com:/home/greg/linux/BK/bleed-2.6

into kroah.com:/home/greg/linux/BK/i2c-2.6

MAINTAINERS

@@ -922,12 +922,10 @@ M:	drivers@neukum.org
 S:	Maintained
 
 I2C AND SENSORS DRIVERS
-P:      Frodo Looijaard
-M:      frodol@dds.nl
-P:      Philip Edelbrock
-M:      phil@netroedge.com
 P:	Greg Kroah-Hartman
 M:	greg@kroah.com
+P:	Philip Edelbrock
+M:	phil@netroedge.com
 L:	sensors@stimpy.netroedge.com
 W:	http://www.lm-sensors.nu/
 S:	Maintained

drivers/i2c/busses/Kconfig

@@ -69,6 +69,18 @@ config I2C_ELV
 	  This support is also available as a module.  If so, the module 
 	  will be called i2c-elv.
 
+config I2C_HYDRA
+	tristate "CHRP Apple Hydra Mac I/O I2C interface"
+	depends on I2C && PCI && PPC_CHRP && EXPERIMENTAL
+	select I2C_ALGOBIT
+	help
+	  This supports the use of the I2C interface in the Apple Hydra Mac
+	  I/O chip on some CHRP machines (e.g. the LongTrail).  Say Y if you
+	  have such a machine.
+
+	  This support is also available as a module.  If so, the module
+	  will be called i2c-hydra.
+
 config I2C_I801
 	tristate "Intel 801"
 	depends on I2C && PCI && EXPERIMENTAL

drivers/i2c/busses/Makefile

@@ -8,6 +8,7 @@ obj-$(CONFIG_I2C_AMD756)	+= i2c-amd756.o
 obj-$(CONFIG_I2C_AMD8111)	+= i2c-amd8111.o
 obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
 obj-$(CONFIG_I2C_ELV)		+= i2c-elv.o
+obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
 obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
 obj-$(CONFIG_I2C_I810)		+= i2c-i810.o
 obj-$(CONFIG_I2C_IBM_IIC)	+= i2c-ibm_iic.o

drivers/i2c/busses/i2c-hydra.c

+/*
+    i2c-hydra.c - Part of lm_sensors,  Linux kernel modules
+                  for hardware monitoring
+
+    i2c Support for the Apple `Hydra' Mac I/O
+
+    Copyright (c) 1999-2004 Geert Uytterhoeven <geert@linux-m68k.org>
+
+    Based on i2c Support for Via Technologies 82C586B South Bridge
+    Copyright (c) 1998, 1999 Kysti Mlkki <kmalkki@cc.hut.fi>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <asm/hydra.h>
+
+
+#define HYDRA_CPD_PD0	0x00000001	/* CachePD lines */
+#define HYDRA_CPD_PD1	0x00000002
+#define HYDRA_CPD_PD2	0x00000004
+#define HYDRA_CPD_PD3	0x00000008
+
+#define HYDRA_SCLK	HYDRA_CPD_PD0
+#define HYDRA_SDAT	HYDRA_CPD_PD1
+#define HYDRA_SCLK_OE	0x00000010
+#define HYDRA_SDAT_OE	0x00000020
+
+static inline void pdregw(void *data, u32 val)
+{
+	struct Hydra *hydra = (struct Hydra *)data;
+	writel(val, &hydra->CachePD);
+}
+
+static inline u32 pdregr(void *data)
+{
+	struct Hydra *hydra = (struct Hydra *)data;
+	return readl(&hydra->CachePD);
+}
+
+static void hydra_bit_setscl(void *data, int state)
+{
+	u32 val = pdregr(data);
+	if (state)
+		val &= ~HYDRA_SCLK_OE;
+	else {
+		val &= ~HYDRA_SCLK;
+		val |= HYDRA_SCLK_OE;
+	}
+	pdregw(data, val);
+}
+
+static void hydra_bit_setsda(void *data, int state)
+{
+	u32 val = pdregr(data);
+	if (state)
+		val &= ~HYDRA_SDAT_OE;
+	else {
+		val &= ~HYDRA_SDAT;
+		val |= HYDRA_SDAT_OE;
+	}
+	pdregw(data, val);
+}
+
+static int hydra_bit_getscl(void *data)
+{
+	return (pdregr(data) & HYDRA_SCLK) != 0;
+}
+
+static int hydra_bit_getsda(void *data)
+{
+	return (pdregr(data) & HYDRA_SDAT) != 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static struct i2c_algo_bit_data hydra_bit_data = {
+	.setsda		= hydra_bit_setsda,
+	.setscl		= hydra_bit_setscl,
+	.getsda		= hydra_bit_getsda,
+	.getscl		= hydra_bit_getscl,
+	.udelay		= 5,
+	.mdelay		= 5,
+	.timeout	= HZ
+};
+
+static struct i2c_adapter hydra_adap = {
+	.owner		= THIS_MODULE,
+	.name		= "Hydra i2c",
+	.id		= I2C_HW_B_HYDRA,
+	.algo_data	= &hydra_bit_data,
+};
+
+static struct pci_device_id hydra_ids[] = {
+	{
+		.vendor		= PCI_VENDOR_ID_APPLE,
+		.device		= PCI_DEVICE_ID_APPLE_HYDRA,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+	},
+	{ 0, }
+};
+
+static int __devinit hydra_probe(struct pci_dev *dev,
+				 const struct pci_device_id *id)
+{
+	unsigned long base = pci_resource_start(dev, 0);
+	int res;
+
+	if (!request_mem_region(base+offsetof(struct Hydra, CachePD), 4,
+				hydra_adap.name))
+		return -EBUSY;
+
+	hydra_bit_data.data = ioremap(base, pci_resource_len(dev, 0));
+	if (hydra_bit_data.data == NULL) {
+		release_mem_region(base+offsetof(struct Hydra, CachePD), 4);
+		return -ENODEV;
+	}
+
+	pdregw(hydra_bit_data.data, 0);		/* clear SCLK_OE and SDAT_OE */
+	hydra_adap.dev.parent = &dev->dev;
+	res = i2c_bit_add_bus(&hydra_adap);
+	if (res < 0) {
+		iounmap(hydra_bit_data.data);
+		release_mem_region(base+offsetof(struct Hydra, CachePD), 4);
+		return res;
+	}
+	return 0;
+}
+
+static void __devexit hydra_remove(struct pci_dev *dev)
+{
+	pdregw(hydra_bit_data.data, 0);		/* clear SCLK_OE and SDAT_OE */
+	i2c_bit_del_bus(&hydra_adap);
+	iounmap(hydra_bit_data.data);
+	release_mem_region(pci_resource_start(dev, 0)+
+			   offsetof(struct Hydra, CachePD), 4);
+}
+
+
+static struct pci_driver hydra_driver = {
+	.name		= "hydra smbus",
+	.id_table	= hydra_ids,
+	.probe		= hydra_probe,
+	.remove		= __devexit_p(hydra_remove),
+};
+
+static int __init i2c_hydra_init(void)
+{
+	return pci_module_init(&hydra_driver);
+}
+
+
+static void __exit i2c_hydra_exit(void)
+{
+	pci_unregister_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/chips/Kconfig

@@ -45,6 +45,28 @@ config SENSORS_EEPROM
 	  This driver can also be built as a module.  If so, the module
 	  will be called eeprom.
 
+config SENSORS_FSCHER
+	tristate "FSC Hermes"
+	depends on I2C && EXPERIMENTAL
+	select I2C_SENSOR
+	help
+	  If you say yes here you get support for Fujitsu Siemens
+	  Computers Hermes sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called fscher.
+
+config SENSORS_GL518SM
+	tristate "Genesys Logic GL518SM"
+	depends on I2C && EXPERIMENTAL
+	select I2C_SENSOR
+	help
+	  If you say yes here you get support for Genesys Logic GL518SM
+	  sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called gl518sm.
+
 config SENSORS_IT87
 	tristate "ITE IT87xx and compatibles"
 	depends on I2C && EXPERIMENTAL

drivers/i2c/chips/Makefile

@@ -8,6 +8,8 @@ obj-$(CONFIG_SENSORS_W83781D)	+= w83781d.o
 
 obj-$(CONFIG_SENSORS_ADM1021)	+= adm1021.o
 obj-$(CONFIG_SENSORS_EEPROM)	+= eeprom.o
+obj-$(CONFIG_SENSORS_FSCHER)	+= fscher.o
+obj-$(CONFIG_SENSORS_GL518SM)	+= gl518sm.o
 obj-$(CONFIG_SENSORS_IT87)	+= it87.o
 obj-$(CONFIG_SENSORS_LM75)	+= lm75.o
 obj-$(CONFIG_SENSORS_LM78)	+= lm78.o

drivers/i2c/chips/fscher.c

+/*
+ * fscher.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2003, 2004 Reinhard Nissl <rnissl@gmx.de>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* 
+ *  fujitsu siemens hermes chip, 
+ *  module based on fscpos.c 
+ *  Copyright (C) 2000 Hermann Jung <hej@odn.de>
+ *  Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ *  and Philip Edelbrock <phil@netroedge.com>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/*
+ * Addresses to scan
+ */
+
+static unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
+static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_1(fscher);
+
+/*
+ * The FSCHER registers
+ */
+
+/* chip identification */
+#define FSCHER_REG_IDENT_0		0x00
+#define FSCHER_REG_IDENT_1		0x01
+#define FSCHER_REG_IDENT_2		0x02
+#define FSCHER_REG_REVISION		0x03
+
+/* global control and status */
+#define FSCHER_REG_EVENT_STATE		0x04
+#define FSCHER_REG_CONTROL		0x05
+
+/* watchdog */
+#define FSCHER_REG_WDOG_PRESET		0x28
+#define FSCHER_REG_WDOG_STATE		0x23
+#define FSCHER_REG_WDOG_CONTROL		0x21
+
+/* fan 0 */
+#define FSCHER_REG_FAN0_MIN		0x55
+#define FSCHER_REG_FAN0_ACT		0x0e
+#define FSCHER_REG_FAN0_STATE		0x0d
+#define FSCHER_REG_FAN0_RIPPLE		0x0f
+
+/* fan 1 */
+#define FSCHER_REG_FAN1_MIN		0x65
+#define FSCHER_REG_FAN1_ACT		0x6b
+#define FSCHER_REG_FAN1_STATE		0x62
+#define FSCHER_REG_FAN1_RIPPLE		0x6f
+
+/* fan 2 */
+#define FSCHER_REG_FAN2_MIN		0xb5
+#define FSCHER_REG_FAN2_ACT		0xbb
+#define FSCHER_REG_FAN2_STATE		0xb2
+#define FSCHER_REG_FAN2_RIPPLE		0xbf
+
+/* voltage supervision */
+#define FSCHER_REG_VOLT_12		0x45
+#define FSCHER_REG_VOLT_5		0x42
+#define FSCHER_REG_VOLT_BATT		0x48
+
+/* temperature 0 */
+#define FSCHER_REG_TEMP0_ACT		0x64
+#define FSCHER_REG_TEMP0_STATE		0x71
+
+/* temperature 1 */
+#define FSCHER_REG_TEMP1_ACT		0x32
+#define FSCHER_REG_TEMP1_STATE		0x81
+
+/* temperature 2 */
+#define FSCHER_REG_TEMP2_ACT		0x35
+#define FSCHER_REG_TEMP2_STATE		0x91
+
+/*
+ * Functions declaration
+ */
+
+static int fscher_attach_adapter(struct i2c_adapter *adapter);
+static int fscher_detect(struct i2c_adapter *adapter, int address, int kind);
+static int fscher_detach_client(struct i2c_client *client);
+static void fscher_update_client(struct i2c_client *client);
+static void fscher_init_client(struct i2c_client *client);
+
+static int fscher_read_value(struct i2c_client *client, u8 reg);
+static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value);
+
+/*
+ * Driver data (common to all clients)
+ */
+ 
+static struct i2c_driver fscher_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "fscher",
+	.id		= I2C_DRIVERID_FSCHER,
+	.flags		= I2C_DF_NOTIFY,
+	.attach_adapter	= fscher_attach_adapter,
+	.detach_client	= fscher_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct fscher_data {
+	struct semaphore update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* register values */
+	u8 revision;		/* revision of chip */
+	u8 global_event;	/* global event status */
+	u8 global_control;	/* global control register */
+	u8 watchdog[3];		/* watchdog */
+	u8 volt[3];		/* 12, 5, battery voltage */ 
+	u8 temp_act[3];		/* temperature */
+	u8 temp_status[3];	/* status of sensor */
+	u8 fan_act[3];		/* fans revolutions per second */
+	u8 fan_status[3];	/* fan status */
+	u8 fan_min[3];		/* fan min value for rps */
+	u8 fan_ripple[3];	/* divider for rps */
+};
+
+/*
+ * Internal variables
+ */
+
+static int fscher_id = 0;
+
+/*
+ * Sysfs stuff
+ */
+
+#define sysfs_r(kind, offset, reg) \
+static ssize_t show_##kind (struct fscher_data *, char *, int); \
+static ssize_t show_##kind##offset (struct device *, char *); \
+static ssize_t show_##kind##offset (struct device *dev, char *buf) \
+{ \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct fscher_data *data = i2c_get_clientdata(client); \
+	fscher_update_client(client); \
+	return show_##kind(data, buf, (offset)); \
+}
+
+#define sysfs_w(kind, offset, reg) \
+static ssize_t set_##kind (struct i2c_client *, struct fscher_data *, const char *, size_t, int, int); \
+static ssize_t set_##kind##offset (struct device *, const char *, size_t); \
+static ssize_t set_##kind##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct fscher_data *data = i2c_get_clientdata(client); \
+	return set_##kind(client, data, buf, count, (offset), reg); \
+}
+
+#define sysfs_rw_n(kind, offset, reg) \
+sysfs_r(kind, offset, reg) \
+sysfs_w(kind, offset, reg) \
+static DEVICE_ATTR(kind##offset, S_IRUGO | S_IWUSR, show_##kind##offset, set_##kind##offset);
+
+#define sysfs_rw(kind, reg) \
+sysfs_r(kind, 0, reg) \
+sysfs_w(kind, 0, reg) \
+static DEVICE_ATTR(kind, S_IRUGO | S_IWUSR, show_##kind##0, set_##kind##0);
+
+#define sysfs_ro_n(kind, offset, reg) \
+sysfs_r(kind, offset, reg) \
+static DEVICE_ATTR(kind##offset, S_IRUGO, show_##kind##offset, NULL);
+
+#define sysfs_ro(kind, reg) \
+sysfs_r(kind, 0, reg) \
+static DEVICE_ATTR(kind, S_IRUGO, show_##kind##0, NULL);
+
+#define sysfs_fan(offset, reg_status, reg_min, reg_ripple, reg_act) \
+sysfs_rw_n(pwm       , offset, reg_min) \
+sysfs_rw_n(fan_status, offset, reg_status) \
+sysfs_rw_n(fan_div   , offset, reg_ripple) \
+sysfs_ro_n(fan_input , offset, reg_act)
+
+#define sysfs_temp(offset, reg_status, reg_act) \
+sysfs_rw_n(temp_status, offset, reg_status) \
+sysfs_ro_n(temp_input , offset, reg_act)
+    
+#define sysfs_in(offset, reg_act) \
+sysfs_ro_n(in_input, offset, reg_act)
+
+#define sysfs_revision(reg_revision) \
+sysfs_ro(revision, reg_revision)
+
+#define sysfs_alarms(reg_events) \
+sysfs_ro(alarms, reg_events)
+
+#define sysfs_control(reg_control) \
+sysfs_rw(control, reg_control)
+
+#define sysfs_watchdog(reg_control, reg_status, reg_preset) \
+sysfs_rw(watchdog_control, reg_control) \
+sysfs_rw(watchdog_status , reg_status) \
+sysfs_rw(watchdog_preset , reg_preset)
+
+sysfs_fan(1, FSCHER_REG_FAN0_STATE, FSCHER_REG_FAN0_MIN,
+	     FSCHER_REG_FAN0_RIPPLE, FSCHER_REG_FAN0_ACT)
+sysfs_fan(2, FSCHER_REG_FAN1_STATE, FSCHER_REG_FAN1_MIN,
+	     FSCHER_REG_FAN1_RIPPLE, FSCHER_REG_FAN1_ACT)
+sysfs_fan(3, FSCHER_REG_FAN2_STATE, FSCHER_REG_FAN2_MIN,
+	     FSCHER_REG_FAN2_RIPPLE, FSCHER_REG_FAN2_ACT)
+
+sysfs_temp(1, FSCHER_REG_TEMP0_STATE, FSCHER_REG_TEMP0_ACT)
+sysfs_temp(2, FSCHER_REG_TEMP1_STATE, FSCHER_REG_TEMP1_ACT)
+sysfs_temp(3, FSCHER_REG_TEMP2_STATE, FSCHER_REG_TEMP2_ACT)
+
+sysfs_in(0, FSCHER_REG_VOLT_12)
+sysfs_in(1, FSCHER_REG_VOLT_5)
+sysfs_in(2, FSCHER_REG_VOLT_BATT)
+
+sysfs_revision(FSCHER_REG_REVISION)
+sysfs_alarms(FSCHER_REG_EVENTS)
+sysfs_control(FSCHER_REG_CONTROL)
+sysfs_watchdog(FSCHER_REG_WDOG_CONTROL, FSCHER_REG_WDOG_STATE, FSCHER_REG_WDOG_PRESET)
+  
+#define device_create_file_fan(client, offset) \
+do { \
+	device_create_file(&client->dev, &dev_attr_fan_status##offset); \
+	device_create_file(&client->dev, &dev_attr_pwm##offset); \
+	device_create_file(&client->dev, &dev_attr_fan_div##offset); \
+	device_create_file(&client->dev, &dev_attr_fan_input##offset); \
+} while (0)
+
+#define device_create_file_temp(client, offset) \
+do { \
+	device_create_file(&client->dev, &dev_attr_temp_status##offset); \
+	device_create_file(&client->dev, &dev_attr_temp_input##offset); \
+} while (0)
+
+#define device_create_file_in(client, offset) \
+do { \
+	device_create_file(&client->dev, &dev_attr_in_input##offset); \
+} while (0)
+
+#define device_create_file_revision(client) \
+do { \
+	device_create_file(&client->dev, &dev_attr_revision); \
+} while (0)
+
+#define device_create_file_alarms(client) \
+do { \
+	device_create_file(&client->dev, &dev_attr_alarms); \
+} while (0)
+
+#define device_create_file_control(client) \
+do { \
+	device_create_file(&client->dev, &dev_attr_control); \
+} while (0)
+
+#define device_create_file_watchdog(client) \
+do { \
+	device_create_file(&client->dev, &dev_attr_watchdog_status); \
+	device_create_file(&client->dev, &dev_attr_watchdog_control); \
+	device_create_file(&client->dev, &dev_attr_watchdog_preset); \
+} while (0)
+  
+/*
+ * Real code
+ */
+
+static int fscher_attach_adapter(struct i2c_adapter *adapter)
+{
+	if (!(adapter->class & I2C_ADAP_CLASS_SMBUS))
+		return 0;
+	return i2c_detect(adapter, &addr_data, fscher_detect);
+}
+
+static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+	struct i2c_client *new_client;
+	struct fscher_data *data;
+	int err = 0;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		goto exit;
+
+	/* OK. For now, we presume we have a valid client. We now create the
+	 * client structure, even though we cannot fill it completely yet.
+	 * But it allows us to access i2c_smbus_read_byte_data. */
+	if (!(new_client = kmalloc(sizeof(struct i2c_client) +
+	    sizeof(struct fscher_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit;
+  	}
+	memset(new_client, 0x00, sizeof(struct i2c_client) +
+	       sizeof(struct fscher_data));
+
+	/* The Hermes-specific data is placed right after the common I2C
+	 * client data. */
+	data = (struct fscher_data *) (new_client + 1);
+	i2c_set_clientdata(new_client, data);
+	new_client->addr = address;
+	new_client->adapter = adapter;
+	new_client->driver = &fscher_driver;
+	new_client->flags = 0;
+
+	/* Do the remaining detection unless force or force_fscher parameter */
+	if (kind < 0) {
+		if ((i2c_smbus_read_byte_data(new_client,
+		     FSCHER_REG_IDENT_0) != 0x48)	/* 'H' */
+		 || (i2c_smbus_read_byte_data(new_client,
+		     FSCHER_REG_IDENT_1) != 0x45)	/* 'E' */
+		 || (i2c_smbus_read_byte_data(new_client,
+		     FSCHER_REG_IDENT_2) != 0x52))	/* 'R' */
+			goto exit_free;
+	}
+
+	/* Fill in the remaining client fields and put it into the
+	 * global list */
+	strlcpy(new_client->name, "fscher", I2C_NAME_SIZE);
+	new_client->id = fscher_id++;
+	data->valid = 0;
+	init_MUTEX(&data->update_lock);
+
+	/* Tell the I2C layer a new client has arrived */
+	if ((err = i2c_attach_client(new_client)))
+		goto exit_free;
+
+	fscher_init_client(new_client);
+
+	/* Register sysfs hooks */
+	device_create_file_revision(new_client);
+	device_create_file_alarms(new_client);
+	device_create_file_control(new_client);
+	device_create_file_watchdog(new_client);
+
+	device_create_file_in(new_client, 0);
+	device_create_file_in(new_client, 1);
+	device_create_file_in(new_client, 2);
+
+	device_create_file_fan(new_client, 1);
+	device_create_file_fan(new_client, 2);
+	device_create_file_fan(new_client, 3);
+
+	device_create_file_temp(new_client, 1);
+	device_create_file_temp(new_client, 2);
+	device_create_file_temp(new_client, 3);
+
+	return 0;
+
+exit_free:
+	kfree(new_client);
+exit:
+	return err;
+}
+
+static int fscher_detach_client(struct i2c_client *client)
+{
+	int err;
+
+	if ((err = i2c_detach_client(client))) {
+		dev_err(&client->dev, "Client deregistration failed, "
+			"client not detached.\n");
+		return err;
+	}
+
+	kfree(client);
+	return 0;
+}
+
+static int fscher_read_value(struct i2c_client *client, u8 reg)
+{
+	dev_dbg(&client->dev, "read reg 0x%02x\n", reg);
+
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	dev_dbg(&client->dev, "write reg 0x%02x, val 0x%02x\n",
+		reg, value);
+
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new FSC Hermes. */
+static void fscher_init_client(struct i2c_client *client)
+{
+	struct fscher_data *data = i2c_get_clientdata(client);
+
+	/* Read revision from chip */
+	data->revision =  fscher_read_value(client, FSCHER_REG_REVISION);
+}
+
+static void fscher_update_client(struct i2c_client *client)
+{
+	struct fscher_data *data = i2c_get_clientdata(client);
+
+	down(&data->update_lock);
+
+	if ((jiffies - data->last_updated > 2 * HZ) ||
+	    (jiffies < data->last_updated) || !data->valid) {
+
+		dev_dbg(&client->dev, "Starting fscher update\n");
+
+		data->temp_act[0] = fscher_read_value(client, FSCHER_REG_TEMP0_ACT);
+		data->temp_act[1] = fscher_read_value(client, FSCHER_REG_TEMP1_ACT);
+		data->temp_act[2] = fscher_read_value(client, FSCHER_REG_TEMP2_ACT);
+		data->temp_status[0] = fscher_read_value(client, FSCHER_REG_TEMP0_STATE);
+		data->temp_status[1] = fscher_read_value(client, FSCHER_REG_TEMP1_STATE);
+		data->temp_status[2] = fscher_read_value(client, FSCHER_REG_TEMP2_STATE);
+
+		data->volt[0] = fscher_read_value(client, FSCHER_REG_VOLT_12);
+		data->volt[1] = fscher_read_value(client, FSCHER_REG_VOLT_5);
+		data->volt[2] = fscher_read_value(client, FSCHER_REG_VOLT_BATT);
+
+		data->fan_act[0] = fscher_read_value(client, FSCHER_REG_FAN0_ACT);
+		data->fan_act[1] = fscher_read_value(client, FSCHER_REG_FAN1_ACT);
+		data->fan_act[2] = fscher_read_value(client, FSCHER_REG_FAN2_ACT);
+		data->fan_status[0] = fscher_read_value(client, FSCHER_REG_FAN0_STATE);
+		data->fan_status[1] = fscher_read_value(client, FSCHER_REG_FAN1_STATE);
+		data->fan_status[2] = fscher_read_value(client, FSCHER_REG_FAN2_STATE);
+		data->fan_min[0] = fscher_read_value(client, FSCHER_REG_FAN0_MIN);
+		data->fan_min[1] = fscher_read_value(client, FSCHER_REG_FAN1_MIN);
+		data->fan_min[2] = fscher_read_value(client, FSCHER_REG_FAN2_MIN);
+		data->fan_ripple[0] = fscher_read_value(client, FSCHER_REG_FAN0_RIPPLE);
+		data->fan_ripple[1] = fscher_read_value(client, FSCHER_REG_FAN1_RIPPLE);
+		data->fan_ripple[2] = fscher_read_value(client, FSCHER_REG_FAN2_RIPPLE);
+
+		data->watchdog[0] = fscher_read_value(client, FSCHER_REG_WDOG_PRESET);
+		data->watchdog[1] = fscher_read_value(client, FSCHER_REG_WDOG_STATE);
+		data->watchdog[2] = fscher_read_value(client, FSCHER_REG_WDOG_CONTROL);
+
+		data->global_event = fscher_read_value(client, FSCHER_REG_EVENT_STATE);
+
+		data->last_updated = jiffies;
+		data->valid = 1;                 
+	}
+
+	up(&data->update_lock);
+}
+
+
+
+#define FAN_INDEX_FROM_NUM(nr)	((nr) - 1)
+
+static ssize_t set_fan_status(struct i2c_client *client, struct fscher_data *data,
+			      const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 0..1, 3..7 reserved => mask with 0x04 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x04;
+	data->fan_status[FAN_INDEX_FROM_NUM(nr)] &= ~v;
+
+	fscher_write_value(client, reg, v);
+	return count;
+}
+
+static ssize_t show_fan_status(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 0..1, 3..7 reserved => mask with 0x04 */  
+	return sprintf(buf, "%u\n", data->fan_status[FAN_INDEX_FROM_NUM(nr)] & 0x04);
+}
+
+static ssize_t set_pwm(struct i2c_client *client, struct fscher_data *data,
+		       const char *buf, size_t count, int nr, int reg)
+{
+	data->fan_min[FAN_INDEX_FROM_NUM(nr)] = simple_strtoul(buf, NULL, 10) & 0xff;
+
+	fscher_write_value(client, reg, data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
+	return count;
+}
+
+static ssize_t show_pwm (struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
+}
+
+static ssize_t set_fan_div(struct i2c_client *client, struct fscher_data *data,
+			   const char *buf, size_t count, int nr, int reg)
+{
+	/* supported values: 2, 4, 8 */
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	switch (v) {
+	case 2: v = 1; break;
+	case 4: v = 2; break;
+	case 8: v = 3; break;
+	default:
+		dev_err(&client->dev, "fan_div value %ld not "
+			 "supported. Choose one of 2, 4 or 8!\n", v);
+		return -1;
+	}
+
+	/* bits 2..7 reserved => mask with 0x03 */
+	data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] &= ~0x03;
+	data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] |= v;
+
+	fscher_write_value(client, reg, data->fan_ripple[FAN_INDEX_FROM_NUM(nr)]);
+	return count;
+}
+
+static ssize_t show_fan_div(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 2..7 reserved => mask with 0x03 */  
+	return sprintf(buf, "%u\n", 1 << (data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] & 0x03));
+}
+
+#define RPM_FROM_REG(val)	(val*60)
+
+static ssize_t show_fan_input (struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[FAN_INDEX_FROM_NUM(nr)]));
+}
+
+
+
+#define TEMP_INDEX_FROM_NUM(nr)		((nr) - 1)
+
+static ssize_t set_temp_status(struct i2c_client *client, struct fscher_data *data,
+			       const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 2..7 reserved, 0 read only => mask with 0x02 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+	data->temp_status[TEMP_INDEX_FROM_NUM(nr)] &= ~v;
+
+	fscher_write_value(client, reg, v);
+	return count;
+}
+
+static ssize_t show_temp_status(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 2..7 reserved => mask with 0x03 */
+	return sprintf(buf, "%u\n", data->temp_status[TEMP_INDEX_FROM_NUM(nr)] & 0x03);
+}
+
+#define TEMP_FROM_REG(val)	(((val) - 128) * 1000)
+
+static ssize_t show_temp_input(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[TEMP_INDEX_FROM_NUM(nr)]));
+}
+
+/*
+ * The final conversion is specified in sensors.conf, as it depends on
+ * mainboard specific values. We export the registers contents as
+ * pseudo-hundredths-of-Volts (range 0V - 2.55V). Not that it makes much
+ * sense per se, but it minimizes the conversions count and keeps the
+ * values within a usual range.
+ */
+#define VOLT_FROM_REG(val)	((val) * 10)
+
+static ssize_t show_in_input(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[nr]));
+}
+
+
+
+static ssize_t show_revision(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", data->revision);
+}
+
+
+
+static ssize_t show_alarms(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 2, 5..6 reserved => mask with 0x9b */
+	return sprintf(buf, "%u\n", data->global_event & 0x9b);
+}
+
+
+
+static ssize_t set_control(struct i2c_client *client, struct fscher_data *data,
+			   const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 1..7 reserved => mask with 0x01 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x01;
+	data->global_control &= ~v;
+
+	fscher_write_value(client, reg, v);
+	return count;
+}
+
+static ssize_t show_control(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 1..7 reserved => mask with 0x01 */
+	return sprintf(buf, "%u\n", data->global_control & 0x01);
+}
+
+
+
+static ssize_t set_watchdog_control(struct i2c_client *client, struct
+				    fscher_data *data, const char *buf, size_t count,
+				    int nr, int reg)
+{
+	/* bits 0..3 reserved => mask with 0xf0 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
+	data->watchdog[2] &= ~0xf0;
+	data->watchdog[2] |= v;
+
+	fscher_write_value(client, reg, data->watchdog[2]);
+	return count;
+}
+
+static ssize_t show_watchdog_control(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 0..3 reserved, bit 5 write only => mask with 0xd0 */
+	return sprintf(buf, "%u\n", data->watchdog[2] & 0xd0);
+}
+
+static ssize_t set_watchdog_status(struct i2c_client *client, struct fscher_data *data,
+				   const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 0, 2..7 reserved => mask with 0x02 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+	data->watchdog[1] &= ~v;
+
+	fscher_write_value(client, reg, v);
+	return count;
+}
+
+static ssize_t show_watchdog_status(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 0, 2..7 reserved => mask with 0x02 */
+	return sprintf(buf, "%u\n", data->watchdog[1] & 0x02);
+}
+
+static ssize_t set_watchdog_preset(struct i2c_client *client, struct fscher_data *data,
+				   const char *buf, size_t count, int nr, int reg)
+{
+	data->watchdog[0] = simple_strtoul(buf, NULL, 10) & 0xff;
+
+	fscher_write_value(client, reg, data->watchdog[0]);
+	return count;
+}
+
+static ssize_t show_watchdog_preset(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", data->watchdog[0]);
+}
+
+static int __init sensors_fscher_init(void)
+{
+	return i2c_add_driver(&fscher_driver);
+}
+
+static void __exit sensors_fscher_exit(void)
+{
+	i2c_del_driver(&fscher_driver);
+}
+
+MODULE_AUTHOR("Reinhard Nissl <rnissl@gmx.de>");
+MODULE_DESCRIPTION("FSC Hermes driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_fscher_init);
+module_exit(sensors_fscher_exit);

drivers/i2c/chips/gl518sm.c

+/*
+ * gl518sm.c - Part of lm_sensors, Linux kernel modules for hardware
+ *             monitoring
+ * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
+ * Kyosti Malkki <kmalkki@cc.hut.fi>
+ * Copyright (C) 2004 Hong-Gunn Chew <hglinux@gunnet.org> and
+ * Jean Delvare <khali@linux-fr.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Ported to Linux 2.6 by Hong-Gunn Chew with the help of Jean Delvare
+ * and advice of Greg Kroah-Hartman.
+ *
+ * Notes about the port:
+ * Release 0x00 of the GL518SM chipset doesn't support reading of in0,
+ * in1 nor in2. The original driver had an ugly workaround to get them
+ * anyway (changing limits and watching alarms trigger and wear off).
+ * We did not keep that part of the original driver in the Linux 2.6
+ * version, since it was making the driver significantly more complex
+ * with no real benefit.
+ *
+ * History:
+ * 2004-01-28  Original port. (Hong-Gunn Chew)
+ * 2004-01-31  Code review and approval. (Jean Delvare)
+ */
+
+#include <linux/config.h>
+#ifdef CONFIG_I2C_DEBUG_CHIP
+#define DEBUG	1
+#endif
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_2(gl518sm_r00, gl518sm_r80);
+
+/* Many GL518 constants specified below */
+
+/* The GL518 registers */
+#define GL518_REG_CHIP_ID	0x00
+#define GL518_REG_REVISION	0x01
+#define GL518_REG_VENDOR_ID	0x02
+#define GL518_REG_CONF		0x03
+#define GL518_REG_TEMP_IN	0x04
+#define GL518_REG_TEMP_MAX	0x05
+#define GL518_REG_TEMP_HYST	0x06
+#define GL518_REG_FAN_COUNT	0x07
+#define GL518_REG_FAN_LIMIT	0x08
+#define GL518_REG_VIN1_LIMIT	0x09
+#define GL518_REG_VIN2_LIMIT	0x0a
+#define GL518_REG_VIN3_LIMIT	0x0b
+#define GL518_REG_VDD_LIMIT	0x0c
+#define GL518_REG_VIN3		0x0d
+#define GL518_REG_MISC		0x0f
+#define GL518_REG_ALARM		0x10
+#define GL518_REG_MASK		0x11
+#define GL518_REG_INT		0x12
+#define GL518_REG_VIN2		0x13
+#define GL518_REG_VIN1		0x14
+#define GL518_REG_VDD		0x15
+
+
+/*
+ * Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ * Fixing this is just not worth it.
+ */
+
+#define RAW_FROM_REG(val)	val
+
+#define BOOL_FROM_REG(val)	((val)?0:1)
+#define BOOL_TO_REG(val)	((val)?0:1)
+
+#define TEMP_TO_REG(val)	(SENSORS_LIMIT(((((val)<0? \
+				(val)-500:(val)+500)/1000)+119),0,255))
+#define TEMP_FROM_REG(val)	(((val) - 119) * 1000)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	long rpmdiv;
+	if (rpm == 0)
+		return 0;
+	rpmdiv = SENSORS_LIMIT(rpm, 1, 1920000) * div;
+	return SENSORS_LIMIT((960000 + rpmdiv / 2) / rpmdiv, 1, 255);
+}
+#define FAN_FROM_REG(val,div)	((val)==0 ? 0 : (960000/((val)*(div))))
+
+#define IN_TO_REG(val)		(SENSORS_LIMIT((((val)+9)/19),0,255))
+#define IN_FROM_REG(val)	((val)*19)
+
+#define VDD_TO_REG(val)		(SENSORS_LIMIT((((val)*4+47)/95),0,255))
+#define VDD_FROM_REG(val)	(((val)*95+2)/4)
+
+#define DIV_TO_REG(val)		((val)==4?2:(val)==2?1:(val)==1?0:3)
+#define DIV_FROM_REG(val)	(1 << (val))
+
+#define BEEP_MASK_TO_REG(val)	((val) & 0x7f & data->alarm_mask)
+#define BEEP_MASK_FROM_REG(val)	((val) & 0x7f)
+
+/* Each client has this additional data */
+struct gl518_data {
+	enum chips type;
+
+	struct semaphore update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 voltage_in[4];	/* Register values; [0] = VDD */
+	u8 voltage_min[4];	/* Register values; [0] = VDD */
+	u8 voltage_max[4];	/* Register values; [0] = VDD */
+	u8 iter_voltage_in[4];	/* Register values; [0] = VDD */
+	u8 fan_in[2];
+	u8 fan_min[2];
+	u8 fan_div[2];		/* Register encoding, shifted right */
+	u8 fan_auto1;		/* Boolean */
+	u8 temp_in;		/* Register values */
+	u8 temp_max;		/* Register values */
+	u8 temp_hyst;		/* Register values */
+	u8 alarms;		/* Register value */
+	u8 alarm_mask;		/* Register value */
+	u8 beep_mask;		/* Register value */
+	u8 beep_enable;		/* Boolean */
+};
+
+static int gl518_attach_adapter(struct i2c_adapter *adapter);
+static int gl518_detect(struct i2c_adapter *adapter, int address, int kind);
+static void gl518_init_client(struct i2c_client *client);
+static int gl518_detach_client(struct i2c_client *client);
+static int gl518_read_value(struct i2c_client *client, u8 reg);
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
+static void gl518_update_client(struct i2c_client *client);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver gl518_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "gl518sm",
+	.id		= I2C_DRIVERID_GL518,
+	.flags		= I2C_DF_NOTIFY,
+	.attach_adapter	= gl518_attach_adapter,
+	.detach_client	= gl518_detach_client,
+};
+
+/*
+ * Internal variables
+ */
+
+static int gl518_id = 0;
+
+/*
+ * Sysfs stuff
+ */
+
+#define show(type, suffix, value)					\
+static ssize_t show_##suffix(struct device *dev, char *buf)		\
+{									\
+	struct i2c_client *client = to_i2c_client(dev);			\
+	struct gl518_data *data = i2c_get_clientdata(client);		\
+	gl518_update_client(client);					\
+	return sprintf(buf, "%d\n", type##_FROM_REG(data->value));	\
+}
+
+#define show_fan(suffix, value, index)					\
+static ssize_t show_##suffix(struct device *dev, char *buf)		\
+{									\
+	struct i2c_client *client = to_i2c_client(dev);			\
+	struct gl518_data *data = i2c_get_clientdata(client);		\
+	gl518_update_client(client);					\
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[index],	\
+		DIV_FROM_REG(data->fan_div[index])));			\
+}
+
+show(TEMP, temp_input1, temp_in);
+show(TEMP, temp_max1, temp_max);
+show(TEMP, temp_hyst1, temp_hyst);
+show(BOOL, fan_auto1, fan_auto1);
+show_fan(fan_input1, fan_in, 0);
+show_fan(fan_input2, fan_in, 1);
+show_fan(fan_min1, fan_min, 0);
+show_fan(fan_min2, fan_min, 1);
+show(DIV, fan_div1, fan_div[0]);
+show(DIV, fan_div2, fan_div[1]);
+show(VDD, in_input0, voltage_in[0]);
+show(IN, in_input1, voltage_in[1]);
+show(IN, in_input2, voltage_in[2]);
+show(IN, in_input3, voltage_in[3]);
+show(VDD, in_min0, voltage_min[0]);
+show(IN, in_min1, voltage_min[1]);
+show(IN, in_min2, voltage_min[2]);
+show(IN, in_min3, voltage_min[3]);
+show(VDD, in_max0, voltage_max[0]);
+show(IN, in_max1, voltage_max[1]);
+show(IN, in_max2, voltage_max[2]);
+show(IN, in_max3, voltage_max[3]);
+show(RAW, alarms, alarms);
+show(BOOL, beep_enable, beep_enable);
+show(BEEP_MASK, beep_mask, beep_mask);
+
+#define set(type, suffix, value, reg)					\
+static ssize_t set_##suffix(struct device *dev, const char *buf,	\
+	size_t count)							\
+{									\
+	struct i2c_client *client = to_i2c_client(dev);			\
+	struct gl518_data *data = i2c_get_clientdata(client);		\
+	data->value = type##_TO_REG(simple_strtol(buf, NULL, 10));	\
+	gl518_write_value(client, reg, data->value);			\
+	return count;							\
+}
+
+#define set_bits(type, suffix, value, reg, mask, shift)			\
+static ssize_t set_##suffix(struct device *dev, const char *buf,	\
+	size_t count)							\
+{									\
+	struct i2c_client *client = to_i2c_client(dev);			\
+	struct gl518_data *data = i2c_get_clientdata(client);		\
+	int regvalue = gl518_read_value(client, reg);			\
+	data->value = type##_TO_REG(simple_strtoul(buf, NULL, 10));	\
+	regvalue = (regvalue & ~mask) | (data->value << shift);		\
+	gl518_write_value(client, reg, regvalue);			\
+	return count;							\
+}
+
+#define set_low(type, suffix, value, reg)				\
+	set_bits(type, suffix, value, reg, 0x00ff, 0)
+#define set_high(type, suffix, value, reg)				\
+	set_bits(type, suffix, value, reg, 0xff00, 8)
+
+set(TEMP, temp_max1, temp_max, GL518_REG_TEMP_MAX);
+set(TEMP, temp_hyst1, temp_hyst, GL518_REG_TEMP_HYST);
+set_bits(BOOL, fan_auto1, fan_auto1, GL518_REG_MISC, 0x08, 3);
+set_bits(DIV, fan_div1, fan_div[0], GL518_REG_MISC, 0xc0, 6);
+set_bits(DIV, fan_div2, fan_div[1], GL518_REG_MISC, 0x30, 4);
+set_low(VDD, in_min0, voltage_min[0], GL518_REG_VDD_LIMIT);
+set_low(IN, in_min1, voltage_min[1], GL518_REG_VIN1_LIMIT);
+set_low(IN, in_min2, voltage_min[2], GL518_REG_VIN2_LIMIT);
+set_low(IN, in_min3, voltage_min[3], GL518_REG_VIN3_LIMIT);
+set_high(VDD, in_max0, voltage_max[0], GL518_REG_VDD_LIMIT);
+set_high(IN, in_max1, voltage_max[1], GL518_REG_VIN1_LIMIT);
+set_high(IN, in_max2, voltage_max[2], GL518_REG_VIN2_LIMIT);
+set_high(IN, in_max3, voltage_max[3], GL518_REG_VIN3_LIMIT);
+set_bits(BOOL, beep_enable, beep_enable, GL518_REG_CONF, 0x04, 2);
+set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM);
+
+static ssize_t set_fan_min1(struct device *dev, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl518_data *data = i2c_get_clientdata(client);
+	int regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+
+	data->fan_min[0] = FAN_TO_REG(simple_strtoul(buf, NULL, 10),
+		DIV_FROM_REG(data->fan_div[0]));
+	regvalue = (regvalue & 0x00ff) | (data->fan_min[0] << 8);
+	gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
+
+	data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+	if (data->fan_min[0] == 0)
+		data->alarm_mask &= ~0x20;
+	else
+		data->alarm_mask |= 0x20;
+	data->beep_mask &= data->alarm_mask;
+	gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
+
+	return count;
+}
+
+static ssize_t set_fan_min2(struct device *dev, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl518_data *data = i2c_get_clientdata(client);
+	int regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+
+	data->fan_min[1] = FAN_TO_REG(simple_strtoul(buf, NULL, 10),
+		DIV_FROM_REG(data->fan_div[1]));
+	regvalue = (regvalue & 0xff00) | data->fan_min[1];
+	gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
+
+	data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+	if (data->fan_min[1] == 0)
+		data->alarm_mask &= ~0x40;
+	else
+		data->alarm_mask |= 0x40;
+	data->beep_mask &= data->alarm_mask;
+	gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
+
+	return count;
+}
+
+static DEVICE_ATTR(temp_input1, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp_max1, S_IWUSR|S_IRUGO, show_temp_max1, set_temp_max1);
+static DEVICE_ATTR(temp_hyst1, S_IWUSR|S_IRUGO,
+	show_temp_hyst1, set_temp_hyst1);
+static DEVICE_ATTR(fan_auto1, S_IWUSR|S_IRUGO, show_fan_auto1, set_fan_auto1);
+static DEVICE_ATTR(fan_input1, S_IRUGO, show_fan_input1, NULL);
+static DEVICE_ATTR(fan_input2, S_IRUGO, show_fan_input2, NULL);
+static DEVICE_ATTR(fan_min1, S_IWUSR|S_IRUGO, show_fan_min1, set_fan_min1);
+static DEVICE_ATTR(fan_min2, S_IWUSR|S_IRUGO, show_fan_min2, set_fan_min2);
+static DEVICE_ATTR(fan_div1, S_IWUSR|S_IRUGO, show_fan_div1, set_fan_div1);
+static DEVICE_ATTR(fan_div2, S_IWUSR|S_IRUGO, show_fan_div2, set_fan_div2);
+static DEVICE_ATTR(in_input0, S_IRUGO, show_in_input0, NULL);
+static DEVICE_ATTR(in_input1, S_IRUGO, show_in_input1, NULL);
+static DEVICE_ATTR(in_input2, S_IRUGO, show_in_input2, NULL);
+static DEVICE_ATTR(in_input3, S_IRUGO, show_in_input3, NULL);
+static DEVICE_ATTR(in_min0, S_IWUSR|S_IRUGO, show_in_min0, set_in_min0);
+static DEVICE_ATTR(in_min1, S_IWUSR|S_IRUGO, show_in_min1, set_in_min1);
+static DEVICE_ATTR(in_min2, S_IWUSR|S_IRUGO, show_in_min2, set_in_min2);
+static DEVICE_ATTR(in_min3, S_IWUSR|S_IRUGO, show_in_min3, set_in_min3);
+static DEVICE_ATTR(in_max0, S_IWUSR|S_IRUGO, show_in_max0, set_in_max0);
+static DEVICE_ATTR(in_max1, S_IWUSR|S_IRUGO, show_in_max1, set_in_max1);
+static DEVICE_ATTR(in_max2, S_IWUSR|S_IRUGO, show_in_max2, set_in_max2);
+static DEVICE_ATTR(in_max3, S_IWUSR|S_IRUGO, show_in_max3, set_in_max3);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR(beep_enable, S_IWUSR|S_IRUGO,
+	show_beep_enable, set_beep_enable);
+static DEVICE_ATTR(beep_mask, S_IWUSR|S_IRUGO,
+	show_beep_mask, set_beep_mask);
+
+/*
+ * Real code
+ */
+
+static int gl518_attach_adapter(struct i2c_adapter *adapter)
+{
+	if (!(adapter->class & I2C_ADAP_CLASS_SMBUS))
+		return 0;
+	return i2c_detect(adapter, &addr_data, gl518_detect);
+}
+
+static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+	int i;
+	struct i2c_client *new_client;
+	struct gl518_data *data;
+	int err = 0;
+	const char *name = "";
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WORD_DATA))
+		goto exit;
+
+	/* OK. For now, we presume we have a valid client. We now create the
+	   client structure, even though we cannot fill it completely yet.
+	   But it allows us to access gl518_{read,write}_value. */
+
+	if (!(new_client = kmalloc(sizeof(struct i2c_client) +
+				   sizeof(struct gl518_data),
+				   GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit;
+	}
+	memset(new_client, 0x00, sizeof(struct i2c_client) +
+		sizeof(struct gl518_data));
+
+	data = (struct gl518_data *) (new_client + 1);
+	i2c_set_clientdata(new_client, data);
+
+	new_client->addr = address;
+	new_client->adapter = adapter;
+	new_client->driver = &gl518_driver;
+	new_client->flags = 0;
+
+	/* Now, we do the remaining detection. */
+
+	if (kind < 0) {
+		if ((gl518_read_value(new_client, GL518_REG_CHIP_ID) != 0x80)
+		 || (gl518_read_value(new_client, GL518_REG_CONF) & 0x80))
+			goto exit_free;
+	}
+
+	/* Determine the chip type. */
+	if (kind <= 0) {
+		i = gl518_read_value(new_client, GL518_REG_REVISION);
+		if (i == 0x00) {
+			kind = gl518sm_r00;
+			name = "gl518sm";
+		} else if (i == 0x80) {
+			kind = gl518sm_r80;
+			name = "gl518sm";
+		} else {
+			if (kind <= 0)
+				dev_info(&adapter->dev,
+				    "Ignoring 'force' parameter for unknown "
+				    "chip at adapter %d, address 0x%02x\n",
+				    i2c_adapter_id(adapter), address);
+			goto exit_free;
+		}
+	}
+
+	/* Fill in the remaining client fields */
+	strlcpy(new_client->name, name, I2C_NAME_SIZE);
+	new_client->id = gl518_id++;
+	data->type = kind;
+	data->valid = 0;
+	init_MUTEX(&data->update_lock);
+
+	/* Tell the I2C layer a new client has arrived */
+	if ((err = i2c_attach_client(new_client)))
+		goto exit_free;
+
+	/* Initialize the GL518SM chip */
+	data->alarm_mask = 0xff;
+	data->voltage_in[0]=data->voltage_in[1]=data->voltage_in[2]=0;
+	gl518_init_client((struct i2c_client *) new_client);
+
+	/* Register sysfs hooks */
+	device_create_file(&new_client->dev, &dev_attr_in_input0);
+	device_create_file(&new_client->dev, &dev_attr_in_input1);
+	device_create_file(&new_client->dev, &dev_attr_in_input2);
+	device_create_file(&new_client->dev, &dev_attr_in_input3);
+	device_create_file(&new_client->dev, &dev_attr_in_min0);
+	device_create_file(&new_client->dev, &dev_attr_in_min1);
+	device_create_file(&new_client->dev, &dev_attr_in_min2);
+	device_create_file(&new_client->dev, &dev_attr_in_min3);
+	device_create_file(&new_client->dev, &dev_attr_in_max0);
+	device_create_file(&new_client->dev, &dev_attr_in_max1);
+	device_create_file(&new_client->dev, &dev_attr_in_max2);
+	device_create_file(&new_client->dev, &dev_attr_in_max3);
+	device_create_file(&new_client->dev, &dev_attr_fan_auto1);
+	device_create_file(&new_client->dev, &dev_attr_fan_input1);
+	device_create_file(&new_client->dev, &dev_attr_fan_input2);
+	device_create_file(&new_client->dev, &dev_attr_fan_min1);
+	device_create_file(&new_client->dev, &dev_attr_fan_min2);
+	device_create_file(&new_client->dev, &dev_attr_fan_div1);
+	device_create_file(&new_client->dev, &dev_attr_fan_div2);
+	device_create_file(&new_client->dev, &dev_attr_temp_input1);
+	device_create_file(&new_client->dev, &dev_attr_temp_max1);
+	device_create_file(&new_client->dev, &dev_attr_temp_hyst1);
+	device_create_file(&new_client->dev, &dev_attr_alarms);
+	device_create_file(&new_client->dev, &dev_attr_beep_enable);
+	device_create_file(&new_client->dev, &dev_attr_beep_mask);
+
+	return 0;
+
+/* OK, this is not exactly good programming practice, usually. But it is
+   very code-efficient in this case. */
+
+exit_free:
+	kfree(new_client);
+exit:
+	return err;
+}
+
+
+/* Called when we have found a new GL518SM.
+   Note that we preserve D4:NoFan2 and D2:beep_enable. */
+static void gl518_init_client(struct i2c_client *client)
+{
+	/* Make sure we leave D7:Reset untouched */
+	u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f;
+
+	/* Comparator mode (D3=0), standby mode (D6=0) */
+	gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37));
+
+	/* Never interrupts */
+	gl518_write_value(client, GL518_REG_MASK, 0x00);
+
+	/* Clear status register (D5=1), start (D6=1) */
+	gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue);
+	gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
+}
+
+static int gl518_detach_client(struct i2c_client *client)
+{
+	int err;
+
+	if ((err = i2c_detach_client(client))) {
+		dev_err(&client->dev, "Client deregistration failed, "
+			"client not detached.\n");
+		return err;
+	}
+
+	kfree(client);
+
+	return 0;
+}
+
+static inline u16 swap_bytes(u16 val)
+{
+	return (val >> 8) | (val << 8);
+}
+
+/* Registers 0x07 to 0x0c are word-sized, others are byte-sized 
+   GL518 uses a high-byte first convention, which is exactly opposite to
+   the usual practice. */
+static int gl518_read_value(struct i2c_client *client, u8 reg)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return swap_bytes(i2c_smbus_read_word_data(client, reg));
+	else
+		return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* Registers 0x07 to 0x0c are word-sized, others are byte-sized 
+   GL518 uses a high-byte first convention, which is exactly opposite to
+   the usual practice. */
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return i2c_smbus_write_word_data(client, reg,
+						 swap_bytes(value));
+	else
+		return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static void gl518_update_client(struct i2c_client *client)
+{
+	struct gl518_data *data = i2c_get_clientdata(client);
+	int val;
+
+	down(&data->update_lock);
+
+	if ((jiffies - data->last_updated > HZ + HZ / 2) ||
+	    (jiffies < data->last_updated) || !data->valid) {
+		dev_dbg(&client->dev, "Starting gl518 update\n");
+
+		data->alarms = gl518_read_value(client, GL518_REG_INT);
+		data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+
+		val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
+		data->voltage_min[0] = val & 0xff;
+		data->voltage_max[0] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
+		data->voltage_min[1] = val & 0xff;
+		data->voltage_max[1] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
+		data->voltage_min[2] = val & 0xff;
+		data->voltage_max[2] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
+		data->voltage_min[3] = val & 0xff;
+		data->voltage_max[3] = (val >> 8) & 0xff;
+
+		val = gl518_read_value(client, GL518_REG_FAN_COUNT);
+		data->fan_in[0] = (val >> 8) & 0xff;
+		data->fan_in[1] = val & 0xff;
+
+		val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+		data->fan_min[0] = (val >> 8) & 0xff;
+		data->fan_min[1] = val & 0xff;
+
+		data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
+		data->temp_max =
+		    gl518_read_value(client, GL518_REG_TEMP_MAX);
+		data->temp_hyst =
+		    gl518_read_value(client, GL518_REG_TEMP_HYST);
+
+		val = gl518_read_value(client, GL518_REG_MISC);
+		data->fan_div[0] = (val >> 6) & 0x03;
+		data->fan_div[1] = (val >> 4) & 0x03;
+		data->fan_auto1  = (val >> 3) & 0x01;
+
+		data->alarms &= data->alarm_mask;
+
+		val = gl518_read_value(client, GL518_REG_CONF);
+		data->beep_enable = (val >> 2) & 1;
+
+		if (data->type != gl518sm_r00) {
+			data->voltage_in[0] =
+			    gl518_read_value(client, GL518_REG_VDD);
+			data->voltage_in[1] =
+			    gl518_read_value(client, GL518_REG_VIN1);
+			data->voltage_in[2] =
+			    gl518_read_value(client, GL518_REG_VIN2);
+		}
+		data->voltage_in[3] =
+		    gl518_read_value(client, GL518_REG_VIN3);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	up(&data->update_lock);
+}
+
+static int __init sensors_gl518sm_init(void)
+{
+	return i2c_add_driver(&gl518_driver);
+}
+
+static void __exit sensors_gl518sm_exit(void)
+{
+	i2c_del_driver(&gl518_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+	"Kyosti Malkki <kmalkki@cc.hut.fi> and "
+	"Hong-Gunn Chew <hglinux@gunnet.org>");
+MODULE_DESCRIPTION("GL518SM driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_gl518sm_init);
+module_exit(sensors_gl518sm_exit);

drivers/i2c/chips/lm85.c

@@ -816,7 +816,7 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
 			kind = lm85b ;
 		} else if( company == LM85_COMPANY_NATIONAL
 		    && (verstep & 0xf0) == LM85_VERSTEP_GENERIC ) {
-			dev_err(&adapter->dev, "Unrecgonized version/stepping 0x%02x"
+			dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
 				" Defaulting to LM85.\n", verstep);
 			kind = any_chip ;
 		} else if( company == LM85_COMPANY_ANALOG_DEV
@@ -827,7 +827,7 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
 			kind = adt7463 ;
 		} else if( company == LM85_COMPANY_ANALOG_DEV
 		    && (verstep & 0xf0) == LM85_VERSTEP_GENERIC ) {
-			dev_err(&adapter->dev, "Unrecgonized version/stepping 0x%02x"
+			dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
 				" Defaulting to ADM1027.\n", verstep);
 			kind = adm1027 ;
 		} else if( kind == 0 && (verstep & 0xf0) == 0x60) {
@@ -1204,7 +1204,7 @@ static void  __exit sm_lm85_exit(void)
 
 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
- *     post 2.7.0 CVS changes
+ *     post 2.7.0 CVS changes.
  */
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>");

drivers/i2c/chips/w83l785ts.c

@@ -38,6 +38,9 @@
 #include <linux/i2c.h>
 #include <linux/i2c-sensor.h>
 
+/* How many retries on register read error */
+#define MAX_RETRIES	5
+
 /*
  * Address to scan
  * Address is fully defined internally and cannot be changed.
@@ -82,6 +85,7 @@ static int w83l785ts_attach_adapter(struct i2c_adapter *adapter);
 static int w83l785ts_detect(struct i2c_adapter *adapter, int address,
 	int kind);
 static int w83l785ts_detach_client(struct i2c_client *client);
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval);
 static void w83l785ts_update_client(struct i2c_client *client);
 
 /*
@@ -137,8 +141,8 @@ static ssize_t show_temp_over(struct device *dev, char *buf)
 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
 }
 
-static DEVICE_ATTR(temp_input, S_IRUGO, show_temp, NULL)
-static DEVICE_ATTR(temp_max, S_IRUGO, show_temp_over, NULL)
+static DEVICE_ATTR(temp_input1, S_IRUGO, show_temp, NULL)
+static DEVICE_ATTR(temp_max1, S_IRUGO, show_temp_over, NULL)
 
 /*
  * Real code
@@ -196,10 +200,10 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
 	 * are skipped.
 	 */
 	if (kind < 0) { /* detection */
-		if (((i2c_smbus_read_byte_data(new_client,
-		      W83L785TS_REG_CONFIG) & 0x80) != 0x00)
-		 || ((i2c_smbus_read_byte_data(new_client,
-		      W83L785TS_REG_TYPE) & 0xFC) != 0x00)) {
+		if (((w83l785ts_read_value(new_client,
+		      W83L785TS_REG_CONFIG, 0) & 0x80) != 0x00)
+		 || ((w83l785ts_read_value(new_client,
+		      W83L785TS_REG_TYPE, 0) & 0xFC) != 0x00)) {
 			dev_dbg(&adapter->dev,
 				"W83L785TS-S detection failed at 0x%02x.\n",
 				address);
@@ -211,12 +215,12 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
 		u16 man_id;
 		u8 chip_id;
 
-		man_id = (i2c_smbus_read_byte_data(new_client,
-			 W83L785TS_REG_MAN_ID1) << 8) +
-			 i2c_smbus_read_byte_data(new_client,
-			 W83L785TS_REG_MAN_ID2);
-		chip_id = i2c_smbus_read_byte_data(new_client,
-			  W83L785TS_REG_CHIP_ID);
+		man_id = (w83l785ts_read_value(new_client,
+			 W83L785TS_REG_MAN_ID1, 0) << 8) +
+			 w83l785ts_read_value(new_client,
+			 W83L785TS_REG_MAN_ID2, 0);
+		chip_id = w83l785ts_read_value(new_client,
+			  W83L785TS_REG_CHIP_ID, 0);
 
 		if (man_id == 0x5CA3) { /* Winbond */
 			if (chip_id == 0x70) { /* W83L785TS-S */
@@ -239,6 +243,9 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
 	data->valid = 0;
 	init_MUTEX(&data->update_lock);
 
+	/* Default values in case the first read fails (unlikely). */
+	data->temp_over = data->temp = 0;
+
 	/* Tell the I2C layer a new client has arrived. */
 	if ((err = i2c_attach_client(new_client))) 
 		goto exit_free;
@@ -249,8 +256,8 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
 	 */
 
 	/* Register sysfs hooks */
-	device_create_file(&new_client->dev, &dev_attr_temp_input);
-	device_create_file(&new_client->dev, &dev_attr_temp_max);
+	device_create_file(&new_client->dev, &dev_attr_temp_input1);
+	device_create_file(&new_client->dev, &dev_attr_temp_max1);
 
 	return 0;
 
@@ -274,6 +281,26 @@ static int w83l785ts_detach_client(struct i2c_client *client)
 	return 0;
 }
 
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
+{
+	int value, i;
+
+	/* Frequent read errors have been reported on Asus boards, so we
+	 * retry on read errors. If it still fails (unlikely), return the
+	 * default value requested by the caller. */
+	for (i = 1; i <= MAX_RETRIES; i++) {
+		value = i2c_smbus_read_byte_data(client, reg);
+		if (value >= 0)
+			return value;
+		dev_dbg(&client->dev, "Read failed, will retry in %d.\n", i);
+		i2c_delay(i);
+	}
+
+	dev_err(&client->dev, "Couldn't read value from register. "
+		"Please report.\n");
+	return defval;
+}
+
 static void w83l785ts_update_client(struct i2c_client *client)
 {
 	struct w83l785ts_data *data = i2c_get_clientdata(client);
@@ -284,10 +311,10 @@ static void w83l785ts_update_client(struct i2c_client *client)
 	 || (jiffies - data->last_updated > HZ * 2)
 	 || (jiffies < data->last_updated)) {
 		dev_dbg(&client->dev, "Updating w83l785ts data.\n");
-		data->temp = i2c_smbus_read_byte_data(client,
-			     W83L785TS_REG_TEMP);
-		data->temp_over = i2c_smbus_read_byte_data(client,
-				  W83L785TS_REG_TEMP_OVER);
+		data->temp = w83l785ts_read_value(client,
+			     W83L785TS_REG_TEMP, data->temp);
+		data->temp_over = w83l785ts_read_value(client,
+				  W83L785TS_REG_TEMP_OVER, data->temp_over);
 
 		data->last_updated = jiffies;
 		data->valid = 1;

drivers/i2c/i2c-core.c

@@ -598,7 +598,7 @@ int i2c_master_recv(struct i2c_client *client, char *buf ,int count)
 		ret = adap->algo->master_xfer(adap,&msg,1);
 		up(&adap->bus_lock);
 	
-		dev_dbg(&client->dev, "master_recv: return:%d (count:%d, addr:0x%02x)\n",
+		dev_dbg(&client->adapter->dev, "master_recv: return:%d (count:%d, addr:0x%02x)\n",
 			ret, count, client->addr);
 	
 		/* if everything went ok (i.e. 1 msg transmitted), return #bytes

include/linux/i2c-id.h

@@ -156,6 +156,7 @@
 #define I2C_DRIVERID_LM83 1040
 #define I2C_DRIVERID_LM90 1042
 #define I2C_DRIVERID_ASB100 1043
+#define I2C_DRIVERID_FSCHER 1046
 #define I2C_DRIVERID_W83L785TS 1047
 
 /*