diff options
| -rw-r--r-- | Documentation/hwmon/lm83 | 16 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/hwmon/lm83.c | 50 |
3 files changed, 51 insertions, 19 deletions
diff --git a/Documentation/hwmon/lm83 b/Documentation/hwmon/lm83 index 061d9ed8ff43..74aa7ee1a359 100644 --- a/Documentation/hwmon/lm83 +++ b/Documentation/hwmon/lm83 @@ -7,6 +7,10 @@ Supported chips: Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e Datasheet: Publicly available at the National Semiconductor website http://www.national.com/pf/LM/LM83.html + * National Semiconductor LM82 + Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e + Datasheet: Publicly available at the National Semiconductor website + http://www.national.com/pf/LM/LM82.html Author: Jean Delvare <khali@linux-fr.org> @@ -15,10 +19,11 @@ Description ----------- The LM83 is a digital temperature sensor. It senses its own temperature as -well as the temperature of up to three external diodes. It is compatible -with many other devices such as the LM84 and all other ADM1021 clones. -The main difference between the LM83 and the LM84 in that the later can -only sense the temperature of one external diode. +well as the temperature of up to three external diodes. The LM82 is +a stripped down version of the LM83 that only supports one external diode. +Both are compatible with many other devices such as the LM84 and all +other ADM1021 clones. The main difference between the LM83 and the LM84 +in that the later can only sense the temperature of one external diode. Using the adm1021 driver for a LM83 should work, but only two temperatures will be reported instead of four. @@ -36,6 +41,9 @@ Unconfirmed motherboards: Iwill MPX2 Soltek SL-75DRV5 +The LM82 is confirmed to have been found on most AMD Geode reference +designs and test platforms. + The driver has been successfully tested by Magnus Forsström, who I'd like to thank here. More testers will be of course welcome. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 99cdc612d2c6..a6a8d66129b3 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -236,11 +236,11 @@ config SENSORS_LM80 will be called lm80. config SENSORS_LM83 - tristate "National Semiconductor LM83" + tristate "National Semiconductor LM83 and compatibles" depends on HWMON && I2C help If you say yes here you get support for National Semiconductor - LM83 sensor chips. + LM82 and LM83 sensor chips. This driver can also be built as a module. If so, the module will be called lm83. diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c index aac4ec2bf694..2137d7879df6 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 @@ static unsigned short normal_i2c[] = { 0x18, 0x19, 0x1a, * Insmod parameters */ -I2C_CLIENT_INSMOD_1(lm83); +I2C_CLIENT_INSMOD_2(lm83, lm82); /* * The LM83 registers @@ -283,6 +287,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) if (man_id == 0x01) { /* National Semiconductor */ if (chip_id == 0x03) { kind = lm83; + } else + if (chip_id == 0x01) { + kind = lm82; } } @@ -296,6 +303,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) if (kind == lm83) { name = "lm83"; + } else + if (kind == lm82) { + name = "lm82"; } /* We can fill in the remaining client fields */ @@ -319,32 +329,46 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) 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: |