[RFC] adm1021.c converted to sysfs

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Hi all,

Here's a rough first cut at converting the adm1021.c driver over to
sysfs.  The second driver in, and already we're violating the published
documentation :)

There's a die_code value that isn't in the docs, and I have no idea how
to handle the *prec variables that can be read from a adm1023 chip.

Also, I'm pretty sure the write logic is wrong, and the scale of the
read values is also incorrect, but as I don't have this hardware, I
would really appreciate any fixes for this patch.

The patch should apply cleanly to 2.5.66 and any later -bk trees.

thanks,

greg k-h


diff -Nru a/drivers/i2c/chips/adm1021.c b/drivers/i2c/chips/adm1021.c
--- a/drivers/i2c/chips/adm1021.c	Thu Mar 27 22:32:52 2003
+++ b/drivers/i2c/chips/adm1021.c	Thu Mar 27 22:32:52 2003
@@ -53,34 +53,34 @@
 
 /* The adm1021 registers */
 /* Read-only */
-#define ADM1021_REG_TEMP 0x00
-#define ADM1021_REG_REMOTE_TEMP 0x01
-#define ADM1021_REG_STATUS 0x02
-#define ADM1021_REG_MAN_ID 0x0FE	/* 0x41 = AMD, 0x49 = TI, 0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi*/
-#define ADM1021_REG_DEV_ID 0x0FF	/* ADM1021 = 0x0X, ADM1023 = 0x3X */
-#define ADM1021_REG_DIE_CODE 0x0FF	/* MAX1617A */
+#define ADM1021_REG_TEMP		0x00
+#define ADM1021_REG_REMOTE_TEMP		0x01
+#define ADM1021_REG_STATUS		0x02
+#define ADM1021_REG_MAN_ID		0x0FE	/* 0x41 = AMD, 0x49 = TI, 0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi*/
+#define ADM1021_REG_DEV_ID		0x0FF	/* ADM1021 = 0x0X, ADM1023 = 0x3X */
+#define ADM1021_REG_DIE_CODE		0x0FF	/* MAX1617A */
 /* These use different addresses for reading/writing */
-#define ADM1021_REG_CONFIG_R 0x03
-#define ADM1021_REG_CONFIG_W 0x09
-#define ADM1021_REG_CONV_RATE_R 0x04
-#define ADM1021_REG_CONV_RATE_W 0x0A
+#define ADM1021_REG_CONFIG_R		0x03
+#define ADM1021_REG_CONFIG_W		0x09
+#define ADM1021_REG_CONV_RATE_R		0x04
+#define ADM1021_REG_CONV_RATE_W		0x0A
 /* These are for the ADM1023's additional precision on the remote temp sensor */
-#define ADM1021_REG_REM_TEMP_PREC 0x010
-#define ADM1021_REG_REM_OFFSET 0x011
-#define ADM1021_REG_REM_OFFSET_PREC 0x012
-#define ADM1021_REG_REM_TOS_PREC 0x013
-#define ADM1021_REG_REM_THYST_PREC 0x014
+#define ADM1021_REG_REM_TEMP_PREC	0x010
+#define ADM1021_REG_REM_OFFSET		0x011
+#define ADM1021_REG_REM_OFFSET_PREC	0x012
+#define ADM1021_REG_REM_TOS_PREC	0x013
+#define ADM1021_REG_REM_THYST_PREC	0x014
 /* limits */
-#define ADM1021_REG_TOS_R 0x05
-#define ADM1021_REG_TOS_W 0x0B
-#define ADM1021_REG_REMOTE_TOS_R 0x07
-#define ADM1021_REG_REMOTE_TOS_W 0x0D
-#define ADM1021_REG_THYST_R 0x06
-#define ADM1021_REG_THYST_W 0x0C
-#define ADM1021_REG_REMOTE_THYST_R 0x08
-#define ADM1021_REG_REMOTE_THYST_W 0x0E
+#define ADM1021_REG_TOS_R		0x05
+#define ADM1021_REG_TOS_W		0x0B
+#define ADM1021_REG_REMOTE_TOS_R	0x07
+#define ADM1021_REG_REMOTE_TOS_W	0x0D
+#define ADM1021_REG_THYST_R		0x06
+#define ADM1021_REG_THYST_W		0x0C
+#define ADM1021_REG_REMOTE_THYST_R	0x08
+#define ADM1021_REG_REMOTE_THYST_W	0x0E
 /* write-only */
-#define ADM1021_REG_ONESHOT 0x0F
+#define ADM1021_REG_ONESHOT		0x0F
 
 
 /* Conversions. Rounding and limit checking is only done on the TO_REG
@@ -88,8 +88,8 @@
    these macros are called: arguments may be evaluated more than once.
    Fixing this is just not worth it. */
 /* Conversions  note: 1021 uses normal integer signed-byte format*/
-#define TEMP_FROM_REG(val) (val > 127 ? val-256 : val)
-#define TEMP_TO_REG(val)   (SENSORS_LIMIT((val < 0 ? val+256 : val),0,255))
+#define TEMP_FROM_REG(val)	(val > 127 ? val-256 : val)
+#define TEMP_TO_REG(val)	(SENSORS_LIMIT((val < 0 ? val+256 : val),0,255))
 
 /* Initial values */
 
@@ -97,25 +97,34 @@
 they don't quite work like a thermostat the way the LM75 does.  I.e., 
 a lower temp than THYST actually triggers an alarm instead of 
 clearing it.  Weird, ey?   --Phil  */
-#define adm1021_INIT_TOS 60
-#define adm1021_INIT_THYST 20
-#define adm1021_INIT_REMOTE_TOS 60
-#define adm1021_INIT_REMOTE_THYST 20
+#define adm1021_INIT_TOS		60
+#define adm1021_INIT_THYST		20
+#define adm1021_INIT_REMOTE_TOS		60
+#define adm1021_INIT_REMOTE_THYST	20
 
 /* Each client has this additional data */
 struct adm1021_data {
-	int sysctl_id;
 	enum chips type;
 
 	struct semaphore update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
 
-	u8 temp, temp_os, temp_hyst;	/* Register values */
-	u8 remote_temp, remote_temp_os, remote_temp_hyst, alarms, die_code;
+	u8	temp_max;	/* Register values */
+	u8	temp_hyst;
+	u8	temp_input;
+	u8	remote_temp_max;
+	u8	remote_temp_hyst;
+	u8	remote_temp_input;
+	u8	alarms;
+	/* special values for ADM1021 only */
+	u8	die_code;
         /* Special values for ADM1023 only */
-	u8 remote_temp_prec, remote_temp_os_prec, remote_temp_hyst_prec, 
-	   remote_temp_offset, remote_temp_offset_prec;
+	u8	remote_temp_prec;
+	u8	remote_temp_os_prec;
+	u8	remote_temp_hyst_prec;
+	u8	remote_temp_offset;
+	u8	remote_temp_offset_prec;
 };
 
 static int adm1021_attach_adapter(struct i2c_adapter *adapter);
@@ -126,15 +135,6 @@
 static int adm1021_read_value(struct i2c_client *client, u8 reg);
 static int adm1021_write_value(struct i2c_client *client, u8 reg,
 			       u16 value);
-static void adm1021_temp(struct i2c_client *client, int operation,
-			 int ctl_name, int *nrels_mag, long *results);
-static void adm1021_remote_temp(struct i2c_client *client, int operation,
-				int ctl_name, int *nrels_mag,
-				long *results);
-static void adm1021_alarms(struct i2c_client *client, int operation,
-			   int ctl_name, int *nrels_mag, long *results);
-static void adm1021_die_code(struct i2c_client *client, int operation,
-			     int ctl_name, int *nrels_mag, long *results);
 static void adm1021_update_client(struct i2c_client *client);
 
 /* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
@@ -151,38 +151,57 @@
 	.detach_client	= adm1021_detach_client,
 };
 
-/* These files are created for each detected adm1021. This is just a template;
-   though at first sight, you might think we could use a statically
-   allocated list, we need some way to get back to the parent - which
-   is done through one of the 'extra' fields which are initialized
-   when a new copy is allocated. */
-static ctl_table adm1021_dir_table_template[] = {
-	{ADM1021_SYSCTL_TEMP, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &adm1021_temp},
-	{ADM1021_SYSCTL_REMOTE_TEMP, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &adm1021_remote_temp},
-	{ADM1021_SYSCTL_DIE_CODE, "die_code", NULL, 0, 0444, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &adm1021_die_code},
-	{ADM1021_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &adm1021_alarms},
-	{0}
-};
-
-static ctl_table adm1021_max_dir_table_template[] = {
-	{ADM1021_SYSCTL_TEMP, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &adm1021_temp},
-	{ADM1021_SYSCTL_REMOTE_TEMP, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &adm1021_remote_temp},
-	{ADM1021_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &adm1021_alarms},
-	{0}
-};
-
 /* I choose here for semi-static allocation. Complete dynamic
    allocation could also be used; the code needed for this would probably
    take more memory than the datastructure takes now. */
 static int adm1021_id = 0;
 
+#define show(value)	\
+static ssize_t show_##value(struct device *dev, char *buf)	\
+{								\
+	struct i2c_client *client = to_i2c_client(dev);		\
+	struct adm1021_data *data = i2c_get_clientdata(client);	\
+	int temp;						\
+								\
+	adm1021_update_client(client);				\
+	temp = TEMP_FROM_REG(data->value);			\
+	return sprintf(buf, "%d\n", temp);			\
+}
+show(temp_max);
+show(temp_hyst);
+show(temp_input);
+show(remote_temp_max);
+show(remote_temp_hyst);
+show(remote_temp_input);
+show(alarms);
+show(die_code);
+
+#define set(value, reg)	\
+static ssize_t set_##value(struct device *dev, const char *buf, size_t count)	\
+{								\
+	struct i2c_client *client = to_i2c_client(dev);		\
+	struct adm1021_data *data = i2c_get_clientdata(client);	\
+	int temp = simple_strtoul(buf, NULL, 10);		\
+								\
+	data->value = TEMP_TO_REG(temp);			\
+	adm1021_write_value(client, reg, data->value);		\
+	return count;						\
+}
+set(temp_max, ADM1021_REG_TOS_W);
+set(temp_hyst, ADM1021_REG_THYST_W);
+set(remote_temp_max, ADM1021_REG_REMOTE_TOS_W);
+set(remote_temp_hyst, ADM1021_REG_REMOTE_THYST_W);
+
+static DEVICE_ATTR(temp_max1, S_IWUSR | S_IRUGO, show_temp_max, set_temp_max);
+static DEVICE_ATTR(temp_min1, S_IWUSR | S_IRUGO, show_temp_hyst, set_temp_hyst);
+static DEVICE_ATTR(temp_input1, S_IRUGO, show_temp_input, NULL);
+static DEVICE_ATTR(temp_max2, S_IWUSR | S_IRUGO, show_remote_temp_max, set_remote_temp_max);
+static DEVICE_ATTR(temp_min2, S_IWUSR | S_IRUGO, show_remote_temp_hyst, set_remote_temp_hyst);
+static DEVICE_ATTR(temp_input2, S_IRUGO, show_remote_temp_input, NULL);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR(die_code, S_IRUGO, show_die_code, NULL);
+
+
 static int adm1021_attach_adapter(struct i2c_adapter *adapter)
 {
 	return i2c_detect(adapter, &addr_data, adm1021_detect);
@@ -202,8 +221,7 @@
 	   at this moment; i2c_detect really won't call us. */
 #ifdef DEBUG
 	if (i2c_is_isa_adapter(adapter)) {
-		printk
-		    ("adm1021.o: adm1021_detect called for an ISA bus adapter?!?\n");
+		dev_dbg(&adapter->dev, "adm1021_detect called for an ISA bus adapter?!?\n");
 		return 0;
 	}
 #endif
@@ -232,35 +250,28 @@
 	new_client->flags = 0;
 
 	/* Now, we do the remaining detection. */
-
 	if (kind < 0) {
-		if (
-		    (adm1021_read_value(new_client, ADM1021_REG_STATUS) &
-		     0x03) != 0x00)
+		if ((adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0x03) != 0x00)
 			goto error1;
 	}
 
 	/* Determine the chip type. */
-
 	if (kind <= 0) {
 		i = adm1021_read_value(new_client, ADM1021_REG_MAN_ID);
 		if (i == 0x41)
-		  if ((adm1021_read_value (new_client, ADM1021_REG_DEV_ID) & 0x0F0) == 0x030)
-			kind = adm1023;
-		  else
-			kind = adm1021;
+			if ((adm1021_read_value(new_client, ADM1021_REG_DEV_ID) & 0x0F0) == 0x030)
+				kind = adm1023;
+			else
+				kind = adm1021;
 		else if (i == 0x49)
 			kind = thmc10;
 		else if (i == 0x23)
 			kind = gl523sm;
 		else if ((i == 0x4d) &&
-			 (adm1021_read_value
-			  (new_client, ADM1021_REG_DEV_ID) == 0x01))
+			 (adm1021_read_value(new_client, ADM1021_REG_DEV_ID) == 0x01))
 			kind = max1617a;
 		/* LM84 Mfr ID in a different place */
-		else
-		    if (adm1021_read_value
-			(new_client, ADM1021_REG_CONV_RATE_R) == 0x00)
+		else if (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) == 0x00)
 			kind = lm84;
 		else if (i == 0x54)
 			kind = mc1066;
@@ -293,10 +304,8 @@
 		type_name = "mc1066";
 		client_name = "MC1066 chip";
 	} else {
-#ifdef DEBUG
-		printk("adm1021.o: Internal error: unknown kind (%d)?!?",
-		       kind);
-#endif
+		dev_err(&adapter->dev, "Internal error: unknown kind (%d)?!?",
+			kind);
 		goto error1;
 	}
 
@@ -312,25 +321,24 @@
 	if ((err = i2c_attach_client(new_client)))
 		goto error3;
 
-	/* Register a new directory entry with module sensors */
-	err = i2c_register_entry(new_client, type_name,
-			(data->type == adm1021) ?
-				adm1021_dir_table_template :
-				adm1021_max_dir_table_template);
-	if (err < 0)
-		goto error4;
+	device_create_file(&new_client->dev, &dev_attr_temp_max1);
+	device_create_file(&new_client->dev, &dev_attr_temp_min1);
+	device_create_file(&new_client->dev, &dev_attr_temp_input1);
+	device_create_file(&new_client->dev, &dev_attr_temp_max2);
+	device_create_file(&new_client->dev, &dev_attr_temp_min2);
+	device_create_file(&new_client->dev, &dev_attr_temp_input2);
+	device_create_file(&new_client->dev, &dev_attr_alarms);
+	if (data->type == adm1021)
+		device_create_file(&new_client->dev, &dev_attr_die_code);
 
-	data->sysctl_id = err;
 	/* Initialize the ADM1021 chip */
 	adm1021_init_client(new_client);
 	return 0;
 
-      error4:
-	i2c_detach_client(new_client);
-      error3:
-      error1:
+error3:
+error1:
 	kfree(new_client);
-      error0:
+error0:
 	return err;
 }
 
@@ -353,21 +361,15 @@
 
 static int adm1021_detach_client(struct i2c_client *client)
 {
-
 	int err;
 
-	i2c_deregister_entry(((struct adm1021_data *) (i2c_get_clientdata(client)))->sysctl_id);
-
 	if ((err = i2c_detach_client(client))) {
-		printk
-		    ("adm1021.o: Client deregistration failed, client not detached.\n");
+		dev_err(&client->dev, "Client deregistration failed, client not detached.\n");
 		return err;
 	}
 
 	kfree(client);
-
 	return 0;
-
 }
 
 /* All registers are byte-sized */
@@ -391,39 +393,23 @@
 
 	if ((jiffies - data->last_updated > HZ + HZ / 2) ||
 	    (jiffies < data->last_updated) || !data->valid) {
+		dev_dbg(&client->dev, "Starting adm1021 update\n");
 
-#ifdef DEBUG
-		printk("Starting adm1021 update\n");
-#endif
-
-		data->temp = adm1021_read_value(client, ADM1021_REG_TEMP);
-		data->temp_os =
-		    adm1021_read_value(client, ADM1021_REG_TOS_R);
-		data->temp_hyst =
-		    adm1021_read_value(client, ADM1021_REG_THYST_R);
-		data->remote_temp =
-		    adm1021_read_value(client, ADM1021_REG_REMOTE_TEMP);
-		data->remote_temp_os =
-		    adm1021_read_value(client, ADM1021_REG_REMOTE_TOS_R);
-		data->remote_temp_hyst =
-		    adm1021_read_value(client, ADM1021_REG_REMOTE_THYST_R);
-		data->alarms =
-		    adm1021_read_value(client, ADM1021_REG_STATUS) & 0xec;
+		data->temp_input = adm1021_read_value(client, ADM1021_REG_TEMP);
+		data->temp_max = adm1021_read_value(client, ADM1021_REG_TOS_R);
+		data->temp_hyst = adm1021_read_value(client, ADM1021_REG_THYST_R);
+		data->remote_temp_input = adm1021_read_value(client, ADM1021_REG_REMOTE_TEMP);
+		data->remote_temp_max = adm1021_read_value(client, ADM1021_REG_REMOTE_TOS_R);
+		data->remote_temp_hyst = adm1021_read_value(client, ADM1021_REG_REMOTE_THYST_R);
+		data->alarms = adm1021_read_value(client, ADM1021_REG_STATUS) & 0xec;
 		if (data->type == adm1021)
-			data->die_code =
-			    adm1021_read_value(client,
-					       ADM1021_REG_DIE_CODE);
+			data->die_code = adm1021_read_value(client, ADM1021_REG_DIE_CODE);
 		if (data->type == adm1023) {
-		  data->remote_temp_prec =
-		    adm1021_read_value(client, ADM1021_REG_REM_TEMP_PREC);
-		  data->remote_temp_os_prec =
-		    adm1021_read_value(client, ADM1021_REG_REM_TOS_PREC);
-		  data->remote_temp_hyst_prec =
-		    adm1021_read_value(client, ADM1021_REG_REM_THYST_PREC);
-		  data->remote_temp_offset =
-		    adm1021_read_value(client, ADM1021_REG_REM_OFFSET);
-		  data->remote_temp_offset_prec =
-		    adm1021_read_value(client, ADM1021_REG_REM_OFFSET_PREC);
+			data->remote_temp_prec = adm1021_read_value(client, ADM1021_REG_REM_TEMP_PREC);
+			data->remote_temp_os_prec = adm1021_read_value(client, ADM1021_REG_REM_TOS_PREC);
+			data->remote_temp_hyst_prec = adm1021_read_value(client, ADM1021_REG_REM_THYST_PREC);
+			data->remote_temp_offset = adm1021_read_value(client, ADM1021_REG_REM_OFFSET);
+			data->remote_temp_offset_prec = adm1021_read_value(client, ADM1021_REG_REM_OFFSET_PREC);
 		}
 		data->last_updated = jiffies;
 		data->valid = 1;
@@ -433,6 +419,9 @@
 }
 
 
+/* FIXME, remove these four functions, they are here to verify the sysfs
+ * conversion is correct, or not */
+__attribute__((unused))
 static void adm1021_temp(struct i2c_client *client, int operation,
 			 int ctl_name, int *nrels_mag, long *results)
 {
@@ -442,15 +431,15 @@
 		*nrels_mag = 0;
 	else if (operation == SENSORS_PROC_REAL_READ) {
 		adm1021_update_client(client);
-		results[0] = TEMP_FROM_REG(data->temp_os);
+		results[0] = TEMP_FROM_REG(data->temp_max);
 		results[1] = TEMP_FROM_REG(data->temp_hyst);
-		results[2] = TEMP_FROM_REG(data->temp);
+		results[2] = TEMP_FROM_REG(data->temp_input);
 		*nrels_mag = 3;
 	} else if (operation == SENSORS_PROC_REAL_WRITE) {
 		if (*nrels_mag >= 1) {
-			data->temp_os = TEMP_TO_REG(results[0]);
+			data->temp_max = TEMP_TO_REG(results[0]);
 			adm1021_write_value(client, ADM1021_REG_TOS_W,
-					    data->temp_os);
+					    data->temp_max);
 		}
 		if (*nrels_mag >= 2) {
 			data->temp_hyst = TEMP_TO_REG(results[1]);
@@ -460,6 +449,7 @@
 	}
 }
 
+__attribute__((unused))
 static void adm1021_remote_temp(struct i2c_client *client, int operation,
 				int ctl_name, int *nrels_mag, long *results)
 {
@@ -471,68 +461,53 @@
                  else { *nrels_mag = 0; }
 	else if (operation == SENSORS_PROC_REAL_READ) {
 		adm1021_update_client(client);
-		results[0] = TEMP_FROM_REG(data->remote_temp_os);
+		results[0] = TEMP_FROM_REG(data->remote_temp_max);
 		results[1] = TEMP_FROM_REG(data->remote_temp_hyst);
-		results[2] = TEMP_FROM_REG(data->remote_temp);
+		results[2] = TEMP_FROM_REG(data->remote_temp_input);
 		if (data->type == adm1023) {
-		  results[0]=results[0]*1000 + 
-		   ((data->remote_temp_os_prec >> 5) * 125);
-		  results[1]=results[1]*1000 + 
-		   ((data->remote_temp_hyst_prec >> 5) * 125);
-		  results[2]=(TEMP_FROM_REG(data->remote_temp_offset)*1000) + 
-                   ((data->remote_temp_offset_prec >> 5) * 125);
-		  results[3]=TEMP_FROM_REG(data->remote_temp)*1000 + 
-		   ((data->remote_temp_prec >> 5) * 125);
- 		  *nrels_mag = 4;
+			results[0] = results[0]*1000 + ((data->remote_temp_os_prec >> 5) * 125);
+			results[1] = results[1]*1000 + ((data->remote_temp_hyst_prec >> 5) * 125);
+			results[2] = (TEMP_FROM_REG(data->remote_temp_offset)*1000) + ((data->remote_temp_offset_prec >> 5) * 125);
+			results[3] = (TEMP_FROM_REG(data->remote_temp_input)*1000) + ((data->remote_temp_prec >> 5) * 125);
+			*nrels_mag = 4;
 		} else {
- 		  *nrels_mag = 3;
+ 			*nrels_mag = 3;
 		}
 	} else if (operation == SENSORS_PROC_REAL_WRITE) {
 		if (*nrels_mag >= 1) {
 			if (data->type == adm1023) {
-			  prec=((results[0]-((results[0]/1000)*1000))/125)<<5;
-			  adm1021_write_value(client,
-                                            ADM1021_REG_REM_TOS_PREC,
-                                            prec);
-			  results[0]=results[0]/1000;
-			  data->remote_temp_os_prec=prec;
+				prec = ((results[0]-((results[0]/1000)*1000))/125)<<5;
+				adm1021_write_value(client, ADM1021_REG_REM_TOS_PREC, prec);
+				results[0] = results[0]/1000;
+				data->remote_temp_os_prec=prec;
 			}
-			data->remote_temp_os = TEMP_TO_REG(results[0]);
-			adm1021_write_value(client,
-					    ADM1021_REG_REMOTE_TOS_W,
-					    data->remote_temp_os);
+			data->remote_temp_max = TEMP_TO_REG(results[0]);
+			adm1021_write_value(client, ADM1021_REG_REMOTE_TOS_W, data->remote_temp_max);
 		}
 		if (*nrels_mag >= 2) {
 			if (data->type == adm1023) {
-			  prec=((results[1]-((results[1]/1000)*1000))/125)<<5;
-			  adm1021_write_value(client,
-                                            ADM1021_REG_REM_THYST_PREC,
-                                            prec);
-			  results[1]=results[1]/1000;
-			  data->remote_temp_hyst_prec=prec;
+				prec = ((results[1]-((results[1]/1000)*1000))/125)<<5;
+				adm1021_write_value(client, ADM1021_REG_REM_THYST_PREC, prec);
+				results[1] = results[1]/1000;
+				data->remote_temp_hyst_prec=prec;
 			}
 			data->remote_temp_hyst = TEMP_TO_REG(results[1]);
-			adm1021_write_value(client,
-					    ADM1021_REG_REMOTE_THYST_W,
-					    data->remote_temp_hyst);
+			adm1021_write_value(client, ADM1021_REG_REMOTE_THYST_W, data->remote_temp_hyst);
 		}
 		if (*nrels_mag >= 3) {
 			if (data->type == adm1023) {
-			  prec=((results[2]-((results[2]/1000)*1000))/125)<<5;
-			  adm1021_write_value(client,
-                                            ADM1021_REG_REM_OFFSET_PREC,
-                                            prec);
-			  results[2]=results[2]/1000;
-			  data->remote_temp_offset_prec=prec;
-			  data->remote_temp_offset=results[2];
-			  adm1021_write_value(client,
-                                            ADM1021_REG_REM_OFFSET,
-                                            data->remote_temp_offset);
+				prec = ((results[2]-((results[2]/1000)*1000))/125)<<5;
+				adm1021_write_value(client, ADM1021_REG_REM_OFFSET_PREC, prec);
+				results[2]=results[2]/1000;
+				data->remote_temp_offset_prec=prec;
+				data->remote_temp_offset=results[2];
+				adm1021_write_value(client, ADM1021_REG_REM_OFFSET, data->remote_temp_offset);
 			}
 		}
 	}
 }
 
+__attribute__((unused))
 static void adm1021_die_code(struct i2c_client *client, int operation,
 			     int ctl_name, int *nrels_mag, long *results)
 {
@@ -549,6 +524,7 @@
 	}
 }
 
+__attribute__((unused))
 static void adm1021_alarms(struct i2c_client *client, int operation,
 			   int ctl_name, int *nrels_mag, long *results)
 {
@@ -574,8 +550,8 @@
 	i2c_del_driver(&adm1021_driver);
 }
 
-MODULE_AUTHOR
-    ("Frodo Looijaard <frodol at dds.nl> and Philip Edelbrock <phil at netroedge.com>");
+MODULE_AUTHOR ("Frodo Looijaard <frodol at dds.nl> and "
+		"Philip Edelbrock <phil at netroedge.com>");
 MODULE_DESCRIPTION("adm1021 driver");
 MODULE_LICENSE("GPL");
 



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