[PATCH] lm83: Add LM82 support
Add LM82 temperature sensor support (similar to the LM83,
but less featureful).
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c
index aac4ec2..2137d78 100644
--- a/drivers/hwmon/lm83.c
+++ b/drivers/hwmon/lm83.c
@@ -12,6 +12,10 @@
* Since the datasheet omits to give the chip stepping code, I give it
* here: 0x03 (at register 0xff).
*
+ * Also supports the LM82 temp sensor, which is basically a stripped down
+ * model of the LM83. Datasheet is here:
+ * http://www.national.com/pf/LM/LM82.html
+ *
* 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
@@ -52,7 +56,7 @@
* Insmod parameters
*/
-I2C_CLIENT_INSMOD_1(lm83);
+I2C_CLIENT_INSMOD_2(lm83, lm82);
/*
* The LM83 registers
@@ -283,6 +287,9 @@
if (man_id == 0x01) { /* National Semiconductor */
if (chip_id == 0x03) {
kind = lm83;
+ } else
+ if (chip_id == 0x01) {
+ kind = lm82;
}
}
@@ -296,6 +303,9 @@
if (kind == lm83) {
name = "lm83";
+ } else
+ if (kind == lm82) {
+ name = "lm82";
}
/* We can fill in the remaining client fields */
@@ -319,32 +329,46 @@
goto exit_detach;
}
+ /*
+ * The LM82 can only monitor one external diode which is
+ * at the same register as the LM83 temp3 entry - so we
+ * declare 1 and 3 common, and then 2 and 4 only for the LM83.
+ */
+
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_input.dev_attr);
device_create_file(&new_client->dev,
- &sensor_dev_attr_temp2_input.dev_attr);
- device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_input.dev_attr);
- device_create_file(&new_client->dev,
- &sensor_dev_attr_temp4_input.dev_attr);
+
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_max.dev_attr);
device_create_file(&new_client->dev,
- &sensor_dev_attr_temp2_max.dev_attr);
- device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_max.dev_attr);
- device_create_file(&new_client->dev,
- &sensor_dev_attr_temp4_max.dev_attr);
+
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_crit.dev_attr);
device_create_file(&new_client->dev,
- &sensor_dev_attr_temp2_crit.dev_attr);
- device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_crit.dev_attr);
- device_create_file(&new_client->dev,
- &sensor_dev_attr_temp4_crit.dev_attr);
+
device_create_file(&new_client->dev, &dev_attr_alarms);
+ if (kind == lm83) {
+ device_create_file(&new_client->dev,
+ &sensor_dev_attr_temp2_input.dev_attr);
+ device_create_file(&new_client->dev,
+ &sensor_dev_attr_temp4_input.dev_attr);
+
+ device_create_file(&new_client->dev,
+ &sensor_dev_attr_temp2_max.dev_attr);
+ device_create_file(&new_client->dev,
+ &sensor_dev_attr_temp4_max.dev_attr);
+
+ device_create_file(&new_client->dev,
+ &sensor_dev_attr_temp2_crit.dev_attr);
+ device_create_file(&new_client->dev,
+ &sensor_dev_attr_temp4_crit.dev_attr);
+ }
+
return 0;
exit_detach: