Merge bk://kernel.bkbits.net/gregkh/linux/i2c-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

9 files changed, 418 insertions, 121 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index f463dc02a16c..f649f8a20002 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -112,6 +112,7 @@ config I2C_I801
 	    82801EB
 	    6300ESB
 	    ICH6
+	    ICH7
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
@@ -208,7 +209,7 @@ config I2C_KEYWEST
 
 config I2C_MPC
 	tristate "MPC107/824x/85xx/52xx"
-	depends on I2C && FSL_OCP
+	depends on I2C && PPC
 	help
 	  If you say yes to this option, support will be included for the
 	  built-in I2C interface on the MPC107/Tsi107/MPC8240/MPC8245 and
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index b4acf8891281..6ec8b21965e2 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -30,6 +30,7 @@
     82801EB		24D3   (HW PEC supported, 32 byte buffer not supported)
     6300ESB		25A4
     ICH6		266A
+    ICH7		27DA
     This driver supports several versions of Intel's I/O Controller Hubs (ICH).
     For SMBus support, they are similar to the PIIX4 and are part
     of Intel's '810' and other chipsets.
@@ -556,6 +557,7 @@ static struct pci_device_id i801_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_3) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_4) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_16) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_17) },
 	{ 0, }
 };
 
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index ca9e203b719a..67d6e7d299a2 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -1,12 +1,12 @@
 /*
  * (C) Copyright 2003-2004
  * Humboldt Solutions Ltd, adrian@humboldt.co.uk.
- 
+
  * This is a combined i2c adapter and algorithm driver for the
  * MPC107/Tsi107 PowerPC northbridge and processors that include
- * the same I2C unit (8240, 8245, 85xx). 
+ * the same I2C unit (8240, 8245, 85xx).
  *
- * Release 0.6
+ * Release 0.8
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -20,7 +20,13 @@
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <asm/io.h>
+#ifdef CONFIG_FSL_OCP
 #include <asm/ocp.h>
+#define FSL_I2C_DEV_SEPARATE_DFSRR FS_I2C_SEPARATE_DFSRR
+#define FSL_I2C_DEV_CLOCK_5200 FS_I2C_CLOCK_5200
+#else
+#include <linux/fsl_devices.h>
+#endif
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
@@ -50,10 +56,11 @@
 
 struct mpc_i2c {
 	char *base;
-	struct ocp_def *ocpdef;
 	u32 interrupt;
 	wait_queue_head_t queue;
 	struct i2c_adapter adap;
+	int irq;
+	u32 flags;
 };
 
 static __inline__ void writeccr(struct mpc_i2c *i2c, u32 x)
@@ -75,12 +82,12 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id, struct pt_regs *regs)
 
 static int i2c_wait(struct mpc_i2c *i2c, unsigned timeout, int writing)
 {
-	DECLARE_WAITQUEUE(wait, current);
 	unsigned long orig_jiffies = jiffies;
 	u32 x;
 	int result = 0;
 
-	if (i2c->ocpdef->irq == OCP_IRQ_NA) {
+	if (i2c->irq == 0)
+	{
 		while (!(readb(i2c->base + MPC_I2C_SR) & CSR_MIF)) {
 			schedule();
 			if (time_after(jiffies, orig_jiffies + timeout)) {
@@ -92,28 +99,22 @@ static int i2c_wait(struct mpc_i2c *i2c, unsigned timeout, int writing)
 		x = readb(i2c->base + MPC_I2C_SR);
 		writeb(0, i2c->base + MPC_I2C_SR);
 	} else {
-		set_current_state(TASK_INTERRUPTIBLE);
-		add_wait_queue(&i2c->queue, &wait);
-		while (!(i2c->interrupt & CSR_MIF)) {
-			if (signal_pending(current)) {
-				pr_debug("I2C: Interrupted\n");
-				result = -EINTR;
-				break;
-			}
-			if (time_after(jiffies, orig_jiffies + timeout)) {
-				pr_debug("I2C: timeout\n");
-				result = -EIO;
-				break;
-			}
-			msleep_interruptible(jiffies_to_msecs(timeout));
+		/* Interrupt mode */
+		result = wait_event_interruptible_timeout(i2c->queue,
+			(i2c->interrupt & CSR_MIF), timeout * HZ);
+
+		if (unlikely(result < 0))
+			pr_debug("I2C: wait interrupted\n");
+		else if (unlikely(!(i2c->interrupt & CSR_MIF))) {
+			pr_debug("I2C: wait timeout\n");
+			result = -ETIMEDOUT;
 		}
-		set_current_state(TASK_RUNNING);
-		remove_wait_queue(&i2c->queue, &wait);
+
 		x = i2c->interrupt;
 		i2c->interrupt = 0;
 	}
 
-	if (result < -0)
+	if (result < 0)
 		return result;
 
 	if (!(x & CSR_MCF)) {
@@ -137,12 +138,11 @@ static int i2c_wait(struct mpc_i2c *i2c, unsigned timeout, int writing)
 
 static void mpc_i2c_setclock(struct mpc_i2c *i2c)
 {
-	struct ocp_fs_i2c_data *i2c_data = i2c->ocpdef->additions;
 	/* Set clock and filters */
-	if (i2c_data && (i2c_data->flags & FS_I2C_SEPARATE_DFSRR)) {
+	if (i2c->flags & FSL_I2C_DEV_SEPARATE_DFSRR) {
 		writeb(0x31, i2c->base + MPC_I2C_FDR);
 		writeb(0x10, i2c->base + MPC_I2C_DFSRR);
-	} else if (i2c_data && (i2c_data->flags & FS_I2C_CLOCK_5200))
+	} else if (i2c->flags & FSL_I2C_DEV_CLOCK_5200)
 		writeb(0x3f, i2c->base + MPC_I2C_FDR);
 	else
 		writel(0x1031, i2c->base + MPC_I2C_FDR);
@@ -165,7 +165,7 @@ static int mpc_write(struct mpc_i2c *i2c, int target,
 		     const u8 * data, int length, int restart)
 {
 	int i;
-	unsigned timeout = HZ;
+	unsigned timeout = i2c->adap.timeout;
 	u32 flags = restart ? CCR_RSTA : 0;
 
 	/* Start with MEN */
@@ -193,7 +193,7 @@ static int mpc_write(struct mpc_i2c *i2c, int target,
 static int mpc_read(struct mpc_i2c *i2c, int target,
 		    u8 * data, int length, int restart)
 {
-	unsigned timeout = HZ;
+	unsigned timeout = i2c->adap.timeout;
 	int i;
 	u32 flags = restart ? CCR_RSTA : 0;
 
@@ -294,6 +294,7 @@ static struct i2c_adapter mpc_ops = {
 	.retries = 1
 };
 
+#ifdef CONFIG_FSL_OCP
 static int __devinit mpc_i2c_probe(struct ocp_device *ocp)
 {
 	int result = 0;
@@ -302,7 +303,10 @@ static int __devinit mpc_i2c_probe(struct ocp_device *ocp)
 	if (!(i2c = kmalloc(sizeof(*i2c), GFP_KERNEL))) {
 		return -ENOMEM;
 	}
-	i2c->ocpdef = ocp->def;
+	memset(i2c, 0, sizeof(*i2c));
+
+	i2c->irq = ocp->def->irq;
+	i2c->flags = ((struct ocp_fs_i2c_data *)ocp->def->additions)->flags;
 	init_waitqueue_head(&i2c->queue);
 
 	if (!request_mem_region(ocp->def->paddr, MPC_I2C_REGION, "i2c-mpc")) {
@@ -318,16 +322,20 @@ static int __devinit mpc_i2c_probe(struct ocp_device *ocp)
 		goto fail_map;
 	}
 
-	if (ocp->def->irq != OCP_IRQ_NA)
+	if (i2c->irq != OCP_IRQ_NA)
+	{
 		if ((result = request_irq(ocp->def->irq, mpc_i2c_isr,
 					  0, "i2c-mpc", i2c)) < 0) {
 			printk(KERN_ERR
 			       "i2c-mpc - failed to attach interrupt\n");
 			goto fail_irq;
 		}
+	} else
+		i2c->irq = 0;
 
 	i2c->adap = mpc_ops;
 	i2c_set_adapdata(&i2c->adap, i2c);
+
 	if ((result = i2c_add_adapter(&i2c->adap)) < 0) {
 		printk(KERN_ERR "i2c-mpc - failed to add adapter\n");
 		goto fail_add;
@@ -354,9 +362,9 @@ static void __devexit mpc_i2c_remove(struct ocp_device *ocp)
 	i2c_del_adapter(&i2c->adap);
 
 	if (ocp->def->irq != OCP_IRQ_NA)
-		free_irq(i2c->ocpdef->irq, i2c);
+		free_irq(i2c->irq, i2c);
 	iounmap(i2c->base);
-	release_mem_region(i2c->ocpdef->paddr, MPC_I2C_REGION);
+	release_mem_region(ocp->def->paddr, MPC_I2C_REGION);
 	kfree(i2c);
 }
 
@@ -386,6 +394,101 @@ static void __exit iic_exit(void)
 
 module_init(iic_init);
 module_exit(iic_exit);
+#else
+static int fsl_i2c_probe(struct device *device)
+{
+	int result = 0;
+	struct mpc_i2c *i2c;
+	struct platform_device *pdev = to_platform_device(device);
+	struct fsl_i2c_platform_data *pdata;
+	struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data;
+
+	if (!(i2c = kmalloc(sizeof(*i2c), GFP_KERNEL))) {
+		return -ENOMEM;
+	}
+	memset(i2c, 0, sizeof(*i2c));
+
+	i2c->irq = platform_get_irq(pdev, 0);
+	i2c->flags = pdata->device_flags;
+	init_waitqueue_head(&i2c->queue);
+
+	i2c->base = ioremap((phys_addr_t)r->start, MPC_I2C_REGION);
+
+	if (!i2c->base) {
+		printk(KERN_ERR "i2c-mpc - failed to map controller\n");
+		result = -ENOMEM;
+		goto fail_map;
+	}
+
+	if (i2c->irq != 0)
+		if ((result = request_irq(i2c->irq, mpc_i2c_isr,
+					  0, "fsl-i2c", i2c)) < 0) {
+			printk(KERN_ERR
+			       "i2c-mpc - failed to attach interrupt\n");
+			goto fail_irq;
+		}
+
+	i2c->adap = mpc_ops;
+	i2c_set_adapdata(&i2c->adap, i2c);
+	i2c->adap.dev.parent = &pdev->dev;
+	if ((result = i2c_add_adapter(&i2c->adap)) < 0) {
+		printk(KERN_ERR "i2c-mpc - failed to add adapter\n");
+		goto fail_add;
+	}
+
+	mpc_i2c_setclock(i2c);
+	dev_set_drvdata(device, i2c);
+	return result;
+
+      fail_add:
+	if (i2c->irq != 0)
+		free_irq(i2c->irq, 0);
+      fail_irq:
+	iounmap(i2c->base);
+      fail_map:
+	kfree(i2c);
+	return result;
+};
+
+static int fsl_i2c_remove(struct device *device)
+{
+	struct mpc_i2c *i2c = dev_get_drvdata(device);
+
+	dev_set_drvdata(device, NULL);
+	i2c_del_adapter(&i2c->adap);
+
+	if (i2c->irq != 0)
+		free_irq(i2c->irq, i2c);
+
+	iounmap(i2c->base);
+	kfree(i2c);
+	return 0;
+};
+
+/* Structure for a device driver */
+static struct device_driver fsl_i2c_driver = {
+	.name = "fsl-i2c",
+	.bus = &platform_bus_type,
+	.probe = fsl_i2c_probe,
+	.remove = fsl_i2c_remove,
+};
+
+static int __init fsl_i2c_init(void)
+{
+	return driver_register(&fsl_i2c_driver);
+}
+
+static void __exit fsl_i2c_exit(void)
+{
+	driver_unregister(&fsl_i2c_driver);
+}
+
+module_init(fsl_i2c_init);
+module_exit(fsl_i2c_exit);
+
+#endif /* CONFIG_FSL_OCP */
 
 MODULE_AUTHOR("Adrian Cox <adrian@humboldt.co.uk>");
 MODULE_DESCRIPTION
diff --git a/drivers/i2c/chips/adm1026.c b/drivers/i2c/chips/adm1026.c
index e2d13fa6e497..58f8acd00b6e 100644
--- a/drivers/i2c/chips/adm1026.c
+++ b/drivers/i2c/chips/adm1026.c
@@ -452,6 +452,14 @@ void adm1026_init_client(struct i2c_client *client)
 		client->id, value);
 	data->config1 = value;
 	adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
+
+	/* initialize fan_div[] to hardware defaults */
+	value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
+		(adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
+	for (i = 0;i <= 7;++i) {
+		data->fan_div[i] = DIV_FROM_REG(value & 0x03);
+		value >>= 2;
+	}
 }
 
 void adm1026_print_gpio(struct i2c_client *client)
@@ -459,8 +467,7 @@ void adm1026_print_gpio(struct i2c_client *client)
 	struct adm1026_data *data = i2c_get_clientdata(client);
 	int  i;
 
-	dev_dbg(&client->dev, "(%d): GPIO config is:",
-			    client->id);
+	dev_dbg(&client->dev, "(%d): GPIO config is:", client->id);
 	for (i = 0;i <= 7;++i) {
 		if (data->config2 & (1 << i)) {
 			dev_dbg(&client->dev, "\t(%d): %sGP%s%d\n", client->id,
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index 6da35c70f8b6..31ea1300ec9c 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -78,8 +78,6 @@ static struct i2c_driver eeprom_driver = {
 	.detach_client	= eeprom_detach_client,
 };
 
-static int eeprom_id;
-
 static void eeprom_update_client(struct i2c_client *client, u8 slice)
 {
 	struct eeprom_data *data = i2c_get_clientdata(client);
@@ -165,16 +163,14 @@ int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
 	struct eeprom_data *data;
 	int err = 0;
 
-	/* Make sure we aren't probing the ISA bus!! This is just a safety check
-	   at this moment; i2c_detect really won't call us. */
-#ifdef DEBUG
-	if (i2c_is_isa_adapter(adapter)) {
-		dev_dbg(&adapter->dev, " eeprom_detect called for an ISA bus adapter?!?\n");
-		return 0;
-	}
-#endif
-
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+	/* There are three ways we can read the EEPROM data:
+	   (1) I2C block reads (faster, but unsupported by most adapters)
+	   (2) Consecutive byte reads (100% overhead)
+	   (3) Regular byte data reads (200% overhead)
+	   The third method is not implemented by this driver because all
+	   known adapters support at least the second. */
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA
+					    | I2C_FUNC_SMBUS_BYTE))
 		goto exit;
 
 	/* OK. For now, we presume we have a valid client. We now create the
@@ -197,27 +193,28 @@ int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
 	/* prevent 24RF08 corruption */
 	i2c_smbus_write_quick(new_client, 0);
 
-	data->nature = UNKNOWN;
-	/* Detect the Vaio nature of EEPROMs.
-	   We use the "PCG-" prefix as the signature. */
-	if (address == 0x57) {
-		if (i2c_smbus_read_byte_data(new_client, 0x80) == 'P' && 
-		    i2c_smbus_read_byte_data(new_client, 0x81) == 'C' && 
-		    i2c_smbus_read_byte_data(new_client, 0x82) == 'G' &&
-		    i2c_smbus_read_byte_data(new_client, 0x83) == '-')
-			data->nature = VAIO;
-	}
-
 	/* Fill in the remaining client fields */
-	strncpy(new_client->name, "eeprom", I2C_NAME_SIZE);
-	new_client->id = eeprom_id++;
+	strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE);
 	data->valid = 0;
 	init_MUTEX(&data->update_lock);
+	data->nature = UNKNOWN;
 
 	/* Tell the I2C layer a new client has arrived */
 	if ((err = i2c_attach_client(new_client)))
 		goto exit_kfree;
 
+	/* Detect the Vaio nature of EEPROMs.
+	   We use the "PCG-" prefix as the signature. */
+	if (address == 0x57) {
+		if (i2c_smbus_read_byte_data(new_client, 0x80) == 'P'
+		 && i2c_smbus_read_byte(new_client) == 'C'
+		 && i2c_smbus_read_byte(new_client) == 'G'
+		 && i2c_smbus_read_byte(new_client) == '-')
+			dev_info(&new_client->dev, "Vaio EEPROM detected, "
+				"enabling password protection\n");
+			data->nature = VAIO;
+	}
+
 	/* create the sysfs eeprom file */
 	sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr);
 
diff --git a/drivers/i2c/chips/it87.c b/drivers/i2c/chips/it87.c
index a285086a7196..e5cfff368b9b 100644
--- a/drivers/i2c/chips/it87.c
+++ b/drivers/i2c/chips/it87.c
@@ -56,6 +56,7 @@ SENSORS_INSMOD_2(it87, it8712);
 #define	VAL	0x2f	/* The value to read/write */
 #define PME	0x04	/* The device with the fan registers in it */
 #define	DEVID	0x20	/* Register: Device ID */
+#define	DEVREV	0x22	/* Register: Device Revision */
 
 static inline int
 superio_inb(int reg)
@@ -64,6 +65,16 @@ superio_inb(int reg)
 	return inb(VAL);
 }
 
+static int superio_inw(int reg)
+{
+	int val;
+	outb(reg++, REG);
+	val = inb(VAL) << 8;
+	outb(reg, REG);
+	val |= inb(VAL);
+	return val;
+}
+
 static inline void
 superio_select(void)
 {
@@ -87,18 +98,14 @@ superio_exit(void)
 	outb(0x02, VAL);
 }
 
-/* just IT8712F for now - this should be extended to support the other
-   chips as well */
 #define IT8712F_DEVID 0x8712
+#define IT8705F_DEVID 0x8705
 #define IT87_ACT_REG  0x30
 #define IT87_BASE_REG 0x60
 
 /* Update battery voltage after every reading if true */
 static int update_vbat;
 
-/* Reset the registers on init if true */
-static int reset;
-
 /* Chip Type */
 
 static u16 chip_type;
@@ -128,6 +135,8 @@ static u16 chip_type;
 #define IT87_REG_FAN(nr)       (0x0d + (nr))
 #define IT87_REG_FAN_MIN(nr)   (0x10 + (nr))
 #define IT87_REG_FAN_MAIN_CTRL 0x13
+#define IT87_REG_FAN_CTL       0x14
+#define IT87_REG_PWM(nr)       (0x15 + (nr))
 
 #define IT87_REG_VIN(nr)       (0x20 + (nr))
 #define IT87_REG_TEMP(nr)      (0x29 + (nr))
@@ -164,6 +173,9 @@ static inline u8 FAN_TO_REG(long rpm, int div)
 
 #define ALARMS_FROM_REG(val) (val)
 
+#define PWM_TO_REG(val)   ((val) >> 1)
+#define PWM_FROM_REG(val) (((val)&0x7f) << 1)
+
 static int DIV_TO_REG(int val)
 {
 	int answer = 0;
@@ -200,6 +212,8 @@ struct it87_data {
 	u8 vid;			/* Register encoding, combined */
 	int vrm;
 	u32 alarms;		/* Register encoding, combined */
+	u8 fan_main_ctrl;	/* Register value */
+	u8 manual_pwm_ctl[3];   /* manual PWM value set by user */
 };
 
 
@@ -224,8 +238,6 @@ static struct i2c_driver it87_driver = {
 	.detach_client	= it87_detach_client,
 };
 
-static int it87_id;
-
 static ssize_t show_in(struct device *dev, char *buf, int nr)
 {
 	struct it87_data *data = it87_update_device(dev);
@@ -440,18 +452,28 @@ static ssize_t show_fan(struct device *dev, char *buf, int nr)
 {
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr], 
-				DIV_FROM_REG(data->fan_div[nr])) );
+				DIV_FROM_REG(data->fan_div[nr])));
 }
 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
 {
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf,"%d\n",
-		FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])) );
+		FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])));
 }
 static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
 {
 	struct it87_data *data = it87_update_device(dev);
-	return sprintf(buf,"%d\n", DIV_FROM_REG(data->fan_div[nr]) );
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
+{
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf,"%d\n", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0);
+}
+static ssize_t show_pwm(struct device *dev, char *buf, int nr)
+{
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]);
 }
 static ssize_t set_fan_min(struct device *dev, const char *buf, 
 		size_t count, int nr)
@@ -486,7 +508,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
 		else
 			data->fan_div[nr] = 3;
 	}
-	val = old & 0x100;
+	val = old & 0x80;
 	val |= (data->fan_div[0] & 0x07);
 	val |= (data->fan_div[1] & 0x07) << 3;
 	if (data->fan_div[2] == 3)
@@ -499,6 +521,48 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
 	}
 	return count;
 }
+static ssize_t set_pwm_enable(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct it87_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	if (val == 0) {
+		int tmp;
+		/* make sure the fan is on when in on/off mode */
+		tmp = it87_read_value(client, IT87_REG_FAN_CTL);
+		it87_write_value(client, IT87_REG_FAN_CTL, tmp | (1 << nr));
+		/* set on/off mode */
+		data->fan_main_ctrl &= ~(1 << nr);
+		it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+	} else if (val == 1) {
+		/* set SmartGuardian mode */
+		data->fan_main_ctrl |= (1 << nr);
+		it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+		/* set saved pwm value, clear FAN_CTLX PWM mode bit */
+		it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+	} else
+		return -EINVAL;
+
+	return count;
+}
+static ssize_t set_pwm(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct it87_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	if (val < 0 || val > 255)
+		return -EINVAL;
+
+	data->manual_pwm_ctl[nr] = val;
+	if (data->fan_main_ctrl & (1 << nr))
+		it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+
+	return count;
+}
 
 #define show_fan_offset(offset)						\
 static ssize_t show_fan_##offset (struct device *dev, char *buf)	\
@@ -533,6 +597,36 @@ show_fan_offset(1);
 show_fan_offset(2);
 show_fan_offset(3);
 
+#define show_pwm_offset(offset)						\
+static ssize_t show_pwm##offset##_enable (struct device *dev,		\
+	char *buf)							\
+{									\
+	return show_pwm_enable(dev, buf, offset - 1);			\
+}									\
+static ssize_t show_pwm##offset (struct device *dev, char *buf)		\
+{									\
+	return show_pwm(dev, buf, offset - 1);				\
+}									\
+static ssize_t set_pwm##offset##_enable (struct device *dev,		\
+		const char *buf, size_t count)				\
+{									\
+	return set_pwm_enable(dev, buf, count, offset - 1);		\
+}									\
+static ssize_t set_pwm##offset (struct device *dev,			\
+		const char *buf, size_t count)				\
+{									\
+	return set_pwm(dev, buf, count, offset - 1);			\
+}									\
+static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,		\
+		show_pwm##offset##_enable,				\
+		set_pwm##offset##_enable);				\
+static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,			\
+		show_pwm##offset , set_pwm##offset );
+
+show_pwm_offset(1);
+show_pwm_offset(2);
+show_pwm_offset(3);
+
 /* Alarms */
 static ssize_t show_alarms(struct device *dev, char *buf)
 {
@@ -587,25 +681,33 @@ static int it87_attach_adapter(struct i2c_adapter *adapter)
 /* SuperIO detection - will change normal_isa[0] if a chip is found */
 static int it87_find(int *address)
 {
-	u16 val;
+	int err = -ENODEV;
 
 	superio_enter();
-	chip_type = (superio_inb(DEVID) << 8) |
-	       superio_inb(DEVID + 1);
-	if (chip_type != IT8712F_DEVID) {
-		superio_exit();
-		return -ENODEV;
-	}
+	chip_type = superio_inw(DEVID);
+	if (chip_type != IT8712F_DEVID
+	 && chip_type != IT8705F_DEVID)
+	 	goto exit;
 
 	superio_select();
-	val = (superio_inb(IT87_BASE_REG) << 8) |
-	       superio_inb(IT87_BASE_REG + 1);
-	superio_exit();
-	*address = val & ~(IT87_EXTENT - 1);
+	if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
+		pr_info("it87: Device not activated, skipping\n");
+		goto exit;
+	}
+
+	*address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
 	if (*address == 0) {
-		return -ENODEV;
+		pr_info("it87: Base address not set, skipping\n");
+		goto exit;
 	}
-	return 0;
+
+	err = 0;
+	pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n",
+		chip_type, *address, superio_inb(DEVREV) & 0x0f);
+
+exit:
+	superio_exit();
+	return err;
 }
 
 /* This function is called by i2c_detect */
@@ -617,6 +719,8 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
 	int err = 0;
 	const char *name = "";
 	int is_isa = i2c_is_isa_adapter(adapter);
+	int enable_pwm_interface;
+	int tmp;
 
 	if (!is_isa && 
 	    !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -712,10 +816,7 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* Fill in the remaining client fields and put it into the global list */
 	strlcpy(new_client->name, name, I2C_NAME_SIZE);
-
 	data->type = kind;
-
-	new_client->id = it87_id++;
 	data->valid = 0;
 	init_MUTEX(&data->update_lock);
 
@@ -726,6 +827,17 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
 	/* Initialize the IT87 chip */
 	it87_init_client(new_client, data);
 
+	/* Some BIOSes fail to correctly configure the IT87 fans. All fans off
+	 * and polarity set to active low is sign that this is the case so we
+	 * disable pwm control to protect the user. */
+	enable_pwm_interface = 1;
+	tmp = it87_read_value(new_client, IT87_REG_FAN_CTL);
+	if ((tmp & 0x87) == 0) {
+		enable_pwm_interface = 0;
+		dev_info(&new_client->dev,
+			"detected broken BIOS defaults, disabling pwm interface");
+	}
+
 	/* Register sysfs hooks */
 	device_create_file(&new_client->dev, &dev_attr_in0_input);
 	device_create_file(&new_client->dev, &dev_attr_in1_input);
@@ -774,6 +886,14 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
 	device_create_file(&new_client->dev, &dev_attr_fan2_div);
 	device_create_file(&new_client->dev, &dev_attr_fan3_div);
 	device_create_file(&new_client->dev, &dev_attr_alarms);
+	if (enable_pwm_interface) {
+		device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+		device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
+		device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
+		device_create_file(&new_client->dev, &dev_attr_pwm1);
+		device_create_file(&new_client->dev, &dev_attr_pwm2);
+		device_create_file(&new_client->dev, &dev_attr_pwm3);
+	}
 
 	if (data->type == it8712) {
 		device_create_file_vrm(new_client);
@@ -851,12 +971,17 @@ static int it87_write_value(struct i2c_client *client, u8 reg, u8 value)
 /* Called when we have found a new IT87. */
 static void it87_init_client(struct i2c_client *client, struct it87_data *data)
 {
-	int tmp;
-
-	if (reset) {
-		/* Reset all except Watchdog values and last conversion values
-		   This sets fan-divs to 2, among others */
-		it87_write_value(client, IT87_REG_CONFIG, 0x80);
+	int tmp, i;
+
+	/* initialize to sane defaults:
+	 * - if the chip is in manual pwm mode, this will be overwritten with
+	 *   the actual settings on the chip (so in this case, initialization
+	 *   is not needed)
+	 * - if in automatic or on/off mode, we could switch to manual mode,
+	 *   read the registers and set manual_pwm_ctl accordingly, but currently
+	 *   this is not implemented, so we initialize to something sane */
+	for (i = 0; i < 3; i++) {
+		data->manual_pwm_ctl[i] = 0xff;
 	}
 
 	/* Check if temperature channnels are reset manually or by some reason */
@@ -876,13 +1001,31 @@ static void it87_init_client(struct i2c_client *client, struct it87_data *data)
 	}
 
 	/* Check if tachometers are reset manually or by some reason */
-	tmp = it87_read_value(client, IT87_REG_FAN_MAIN_CTRL);
-	if ((tmp & 0x70) == 0) {
+	data->fan_main_ctrl = it87_read_value(client, IT87_REG_FAN_MAIN_CTRL);
+	if ((data->fan_main_ctrl & 0x70) == 0) {
 		/* Enable all fan tachometers */
-		tmp = (tmp & 0x8f) | 0x70;
-		it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, tmp);
+		data->fan_main_ctrl |= 0x70;
+		it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
 	}
 
+	/* Set current fan mode registers and the default settings for the
+	 * other mode registers */
+	for (i = 0; i < 3; i++) {
+		if (data->fan_main_ctrl & (1 << i)) {
+			/* pwm mode */
+			tmp = it87_read_value(client, IT87_REG_PWM(i));
+			if (tmp & 0x80) {
+				/* automatic pwm - not yet implemented, but
+				 * leave the settings made by the BIOS alone
+				 * until a change is requested via the sysfs
+				 * interface */
+			} else {
+				/* manual pwm */
+				data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp);
+			}
+		}
+ 	}
+
 	/* Start monitoring */
 	it87_write_value(client, IT87_REG_CONFIG,
 			 (it87_read_value(client, IT87_REG_CONFIG) & 0x36)
@@ -948,6 +1091,7 @@ static struct it87_data *it87_update_device(struct device *dev)
 			it87_read_value(client, IT87_REG_ALARM1) |
 			(it87_read_value(client, IT87_REG_ALARM2) << 8) |
 			(it87_read_value(client, IT87_REG_ALARM3) << 16);
+		data->fan_main_ctrl = it87_read_value(client, IT87_REG_FAN_MAIN_CTRL);
 
 		data->sensor = it87_read_value(client, IT87_REG_TEMP_ENABLE);
 		/* The 8705 does not have VID capability */
@@ -984,8 +1128,6 @@ MODULE_AUTHOR("Chris Gauthron <chrisg@0-in.com>");
 MODULE_DESCRIPTION("IT8705F, IT8712F, Sis950 driver");
 module_param(update_vbat, bool, 0);
 MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
-module_param(reset, bool, 0);
-MODULE_PARM_DESC(reset, "Reset the chip's registers, default no");
 MODULE_LICENSE("GPL");
 
 module_init(sm_it87_init);
diff --git a/drivers/i2c/chips/lm63.c b/drivers/i2c/chips/lm63.c
index 73b8e8308ea2..e42401eeb457 100644
--- a/drivers/i2c/chips/lm63.c
+++ b/drivers/i2c/chips/lm63.c
@@ -464,8 +464,8 @@ static void lm63_init_client(struct i2c_client *client)
 		(data->config & 0x04) ? "tachometer input" :
 		"alert output");
 	dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n",
-		(data->config_fan & 0x04) ? "1.4" : "360",
-		((data->config_fan & 0x04) ? 700 : 180000) / data->pwm1_freq);
+		(data->config_fan & 0x08) ? "1.4" : "360",
+		((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq);
 	dev_dbg(&client->dev, "PWM output active %s, %s mode\n",
 		(data->config_fan & 0x10) ? "low" : "high",
 		(data->config_fan & 0x20) ? "manual" : "auto");
diff --git a/drivers/i2c/chips/lm85.c b/drivers/i2c/chips/lm85.c
index 60e71d36ffd4..7b1a773bc8f2 100644
--- a/drivers/i2c/chips/lm85.c
+++ b/drivers/i2c/chips/lm85.c
@@ -36,7 +36,7 @@ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
 static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
 
 /* Insmod parameters */
-SENSORS_INSMOD_4(lm85b, lm85c, adm1027, adt7463);
+SENSORS_INSMOD_5(lm85b, lm85c, adm1027, adt7463, emc6d100);
 
 /* The LM85 registers */
 
@@ -66,11 +66,15 @@ SENSORS_INSMOD_4(lm85b, lm85c, adm1027, adt7463);
 #define	LM85_DEVICE_ADX			0x27
 #define	LM85_COMPANY_NATIONAL		0x01
 #define	LM85_COMPANY_ANALOG_DEV		0x41
+#define	LM85_COMPANY_SMSC      		0x5c
+#define	LM85_VERSTEP_VMASK              0xf0
 #define	LM85_VERSTEP_GENERIC		0x60
 #define	LM85_VERSTEP_LM85C		0x60
 #define	LM85_VERSTEP_LM85B		0x62
 #define	LM85_VERSTEP_ADM1027		0x60
 #define	LM85_VERSTEP_ADT7463		0x62
+#define	LM85_VERSTEP_EMC6D100_A0        0x60
+#define	LM85_VERSTEP_EMC6D100_A1        0x61
 
 #define	LM85_REG_CONFIG			0x40
 
@@ -105,6 +109,12 @@ SENSORS_INSMOD_4(lm85b, lm85c, adm1027, adt7463);
 #define	ADT7463_REG_THERM		0x79
 #define	ADT7463_REG_THERM_LIMIT		0x7A
 
+#define EMC6D100_REG_ALARM3             0x7d
+/* IN5, IN6 and IN7 */
+#define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
+#define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
+#define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
+
 #define	LM85_ALARM_IN0			0x0001
 #define	LM85_ALARM_IN1			0x0002
 #define	LM85_ALARM_IN2			0x0004
@@ -135,7 +145,8 @@ SENSORS_INSMOD_4(lm85b, lm85c, adm1027, adt7463);
 
 /* IN are scaled acording to built-in resistors */
 static int lm85_scaling[] = {  /* .001 Volts */
-		2500, 2250, 3300, 5000, 12000
+		2500, 2250, 3300, 5000, 12000,
+		3300, 1500, 1800 /*EMC6D100*/
 	};
 #define SCALE(val,from,to)		(((val)*(to) + ((from)/2))/(from))
 #define INS_TO_REG(n,val)		(SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255))
@@ -331,9 +342,9 @@ struct lm85_data {
 	unsigned long last_reading;	/* In jiffies */
 	unsigned long last_config;	/* In jiffies */
 
-	u8 in[5];		/* Register value */
-	u8 in_max[5];		/* Register value */
-	u8 in_min[5];		/* Register value */
+	u8 in[8];		/* Register value */
+	u8 in_max[8];		/* Register value */
+	u8 in_min[8];		/* Register value */
 	s8 temp[3];		/* Register value */
 	s8 temp_min[3];		/* Register value */
 	s8 temp_max[3];		/* Register value */
@@ -353,7 +364,7 @@ struct lm85_data {
 	u16 tmin_ctl;		/* Register value */
 	unsigned long therm_total; /* Cummulative therm count */
 	u8 therm_limit;		/* Register value */
-	u16 alarms;		/* Register encoding, combined */
+	u32 alarms;		/* Register encoding, combined */
 	struct lm85_autofan autofan[3];
 	struct lm85_zone zone[3];
 };
@@ -1072,7 +1083,7 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
 		    && verstep == LM85_VERSTEP_LM85B ) {
 			kind = lm85b ;
 		} else if( company == LM85_COMPANY_NATIONAL
-		    && (verstep & 0xf0) == LM85_VERSTEP_GENERIC ) {
+		    && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
 			dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
 				" Defaulting to LM85.\n", verstep);
 			kind = any_chip ;
@@ -1083,17 +1094,34 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
 		    && verstep == LM85_VERSTEP_ADT7463 ) {
 			kind = adt7463 ;
 		} else if( company == LM85_COMPANY_ANALOG_DEV
-		    && (verstep & 0xf0) == LM85_VERSTEP_GENERIC ) {
+		    && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
 			dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
-				" Defaulting to ADM1027.\n", verstep);
-			kind = adm1027 ;
-		} else if( kind == 0 && (verstep & 0xf0) == 0x60) {
+				" Defaulting to Generic LM85.\n", verstep );
+			kind = any_chip ;
+		} else if( company == LM85_COMPANY_SMSC
+		    && (verstep == LM85_VERSTEP_EMC6D100_A0
+			 || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
+			/* Unfortunately, we can't tell a '100 from a '101
+			 * from the registers.  Since a '101 is a '100
+			 * in a package with fewer pins and therefore no
+			 * 3.3V, 1.5V or 1.8V inputs, perhaps if those
+			 * inputs read 0, then it's a '101.
+			 */
+			kind = emc6d100 ;
+		} else if( company == LM85_COMPANY_SMSC
+		    && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
+			dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
+			dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
+			    " Defaulting to Generic LM85.\n", verstep );
+			kind = any_chip ;
+		} else if( kind == any_chip
+		    && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
 			dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
 			/* Leave kind as "any_chip" */
 		} else {
 			dev_dbg(&adapter->dev, "Autodetection failed\n");
 			/* Not an LM85 ... */
-			if( kind == 0 ) {  /* User used force=x,y */
+			if( kind == any_chip ) {  /* User used force=x,y */
 				dev_err(&adapter->dev, "Generic LM85 Version 6 not"
 					" found at %d,0x%02x. Try force_lm85c.\n",
 					i2c_adapter_id(adapter), address );
@@ -1114,6 +1142,8 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
 		type_name = "adm1027";
 	} else if ( kind == adt7463 ) {
 		type_name = "adt7463";
+	} else if ( kind == emc6d100){
+		type_name = "emc6d100";
 	}
 	strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
 
@@ -1365,15 +1395,24 @@ static struct lm85_data *lm85_update_device(struct device *dev)
 			    lm85_read_value(client, LM85_REG_PWM(i));
 		}
 
+		data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
+
 		if ( data->type == adt7463 ) {
 			if( data->therm_total < ULONG_MAX - 256 ) {
 			    data->therm_total +=
 				lm85_read_value(client, ADT7463_REG_THERM );
 			}
+		} else if ( data->type == emc6d100 ) {
+			/* Three more voltage sensors */
+			for (i = 5; i <= 7; ++i) {
+				data->in[i] =
+					lm85_read_value(client, EMC6D100_REG_IN(i));
+			}
+			/* More alarm bits */
+			data->alarms |=
+				lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
 		}
 
-		data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
-
 		data->last_reading = jiffies ;
 	};  /* last_reading */
 
@@ -1389,6 +1428,15 @@ static struct lm85_data *lm85_update_device(struct device *dev)
 			    lm85_read_value(client, LM85_REG_IN_MAX(i));
 		}
 
+		if ( data->type == emc6d100 ) {
+			for (i = 5; i <= 7; ++i) {
+				data->in_min[i] =
+					lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
+				data->in_max[i] =
+					lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
+			}
+		}
+
 		for (i = 0; i <= 3; ++i) {
 			data->fan_min[i] =
 			    lm85_read_value(client, LM85_REG_FAN_MIN(i));
diff --git a/drivers/i2c/chips/via686a.c b/drivers/i2c/chips/via686a.c
index f2e889702c56..35c4e1b0dd28 100644
--- a/drivers/i2c/chips/via686a.c
+++ b/drivers/i2c/chips/via686a.c
@@ -786,15 +786,12 @@ static struct via686a_data *via686a_update_device(struct device *dev)
 }
 
 static struct pci_device_id via686a_pci_ids[] = {
-       {
-	       .vendor 		= PCI_VENDOR_ID_VIA, 
-	       .device 		= PCI_DEVICE_ID_VIA_82C686_4, 
-	       .subvendor	= PCI_ANY_ID, 
-	       .subdevice	= PCI_ANY_ID, 
-       },
+       { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) },
        { 0, }
 };
 
+MODULE_DEVICE_TABLE(pci, via686a_pci_ids);
+
 static int __devinit via686a_pci_probe(struct pci_dev *dev,
                                       const struct pci_device_id *id)
 {