[PATCH] I2C: rename in0_ref to cpu0_vid

This patch changes all the i2c chip drivers and documentation to use the
name "cpu0_vid" instead of "in0_ref". The name "in0_ref" was an error in
the first place as motherboard manufacturers may fail to follow the chip
manufacturer's recommendation about which "in" channel to use for VCore
monitoring.

The new name leaves room for chips able to monitor more than 1 vid
value, such as the LM93 and, to a lesser extent, the PC87360 family (all
by National Semiconductor). These chips are typically designed for
dual-CPU motherboards.

This breaks the interface (obviously) so libsensors has been updated to
support both names.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Documentation/i2c/sysfs-interface

@@ -104,7 +104,7 @@ in[0-8]_input	Voltage input value.
 			in7_*	varies
 			in8_*	varies
 
-in0_ref		CPU core reference voltage.
+cpu[0-1]_vid	CPU core reference voltage.
 		Unit: millivolt
 		Read only.
 		Not always correct.

drivers/i2c/chips/asb100.c

@@ -520,9 +520,9 @@ static ssize_t show_vid(struct device *dev, char *buf)
 	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
 }
 
-static DEVICE_ATTR(in0_ref, S_IRUGO, show_vid, NULL);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
 #define device_create_file_vid(client) \
-device_create_file(&client->dev, &dev_attr_in0_ref)
+device_create_file(&client->dev, &dev_attr_cpu0_vid)
 
 /* VRM */
 static ssize_t show_vrm(struct device *dev, char *buf)

drivers/i2c/chips/it87.c

@@ -571,9 +571,9 @@ show_vid_reg(struct device *dev, char *buf)
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 }
-static DEVICE_ATTR(in0_ref, S_IRUGO, show_vid_reg, NULL);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 #define device_create_file_vid(client) \
-device_create_file(&client->dev, &dev_attr_in0_ref)
+device_create_file(&client->dev, &dev_attr_cpu0_vid)
 
 /* This function is called when:
      * it87_driver is inserted (when this module is loaded), for each

drivers/i2c/chips/lm78.c

@@ -423,7 +423,7 @@ static ssize_t show_vid(struct device *dev, char *buf)
 	struct lm78_data *data = lm78_update_device(dev);
 	return sprintf(buf, "%d\n", VID_FROM_REG(data->vid));
 }
-static DEVICE_ATTR(in0_ref, S_IRUGO, show_vid, NULL);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
 
 /* Alarms */
 static ssize_t show_alarms(struct device *dev, char *buf)
@@ -615,7 +615,7 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
 	device_create_file(&new_client->dev, &dev_attr_fan3_min);
 	device_create_file(&new_client->dev, &dev_attr_fan3_div);
 	device_create_file(&new_client->dev, &dev_attr_alarms);
-	device_create_file(&new_client->dev, &dev_attr_in0_ref);
+	device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
 
 	return 0;
 

drivers/i2c/chips/lm85.c

@@ -465,7 +465,7 @@ static ssize_t show_vid_reg(struct device *dev, char *buf)
 	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 }
 
-static DEVICE_ATTR(in0_ref, S_IRUGO, show_vid_reg, NULL);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 
 static ssize_t show_vrm_reg(struct device *dev, char *buf)
 {
@@ -874,7 +874,7 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
 	device_create_file(&new_client->dev, &dev_attr_temp2_max);
 	device_create_file(&new_client->dev, &dev_attr_temp3_max);
 	device_create_file(&new_client->dev, &dev_attr_vrm);
-	device_create_file(&new_client->dev, &dev_attr_in0_ref);
+	device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
 	device_create_file(&new_client->dev, &dev_attr_alarms);
 
 	return 0;

drivers/i2c/chips/w83627hf.c

@@ -635,9 +635,9 @@ show_vid_reg(struct device *dev, char *buf)
 	struct w83627hf_data *data = w83627hf_update_device(dev);
 	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 }
-static DEVICE_ATTR(in0_ref, S_IRUGO, show_vid_reg, NULL);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 #define device_create_file_vid(client) \
-device_create_file(&client->dev, &dev_attr_in0_ref)
+device_create_file(&client->dev, &dev_attr_cpu0_vid)
 
 static ssize_t
 show_vrm_reg(struct device *dev, char *buf)

drivers/i2c/chips/w83781d.c

@@ -503,9 +503,9 @@ show_vid_reg(struct device *dev, char *buf)
 }
 
 static
-DEVICE_ATTR(in0_ref, S_IRUGO, show_vid_reg, NULL);
+DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 #define device_create_file_vid(client) \
-device_create_file(&client->dev, &dev_attr_in0_ref);
+device_create_file(&client->dev, &dev_attr_cpu0_vid);
 static ssize_t
 show_vrm_reg(struct device *dev, char *buf)
 {