[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>
This commit is contained in:
Jordan Crouse
Greg Kroah-Hartman
Родитель
52ab3f3dc7
Коммит
43cb7ebee2
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@ -7,6 +7,10 @@ Supported chips:
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Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
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Datasheet: Publicly available at the National Semiconductor website
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http://www.national.com/pf/LM/LM83.html
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* National Semiconductor LM82
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Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
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Datasheet: Publicly available at the National Semiconductor website
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http://www.national.com/pf/LM/LM82.html
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Author: Jean Delvare <khali@linux-fr.org>
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@ -15,10 +19,11 @@ Description
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-----------
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The LM83 is a digital temperature sensor. It senses its own temperature as
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well as the temperature of up to three external diodes. It is compatible
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with many other devices such as the LM84 and all other ADM1021 clones.
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The main difference between the LM83 and the LM84 in that the later can
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only sense the temperature of one external diode.
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well as the temperature of up to three external diodes. The LM82 is
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a stripped down version of the LM83 that only supports one external diode.
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Both are compatible with many other devices such as the LM84 and all
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other ADM1021 clones. The main difference between the LM83 and the LM84
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in that the later can only sense the temperature of one external diode.
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Using the adm1021 driver for a LM83 should work, but only two temperatures
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will be reported instead of four.
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@ -36,6 +41,9 @@ Unconfirmed motherboards:
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Iwill MPX2
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Soltek SL-75DRV5
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The LM82 is confirmed to have been found on most AMD Geode reference
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designs and test platforms.
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The driver has been successfully tested by Magnus Forsström, who I'd
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like to thank here. More testers will be of course welcome.
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@ -236,11 +236,11 @@ config SENSORS_LM80
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will be called lm80.
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config SENSORS_LM83
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tristate "National Semiconductor LM83"
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tristate "National Semiconductor LM83 and compatibles"
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depends on HWMON && I2C
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help
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If you say yes here you get support for National Semiconductor
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LM83 sensor chips.
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LM82 and LM83 sensor chips.
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This driver can also be built as a module. If so, the module
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will be called lm83.
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@ -12,6 +12,10 @@
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* Since the datasheet omits to give the chip stepping code, I give it
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* here: 0x03 (at register 0xff).
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*
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* Also supports the LM82 temp sensor, which is basically a stripped down
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* model of the LM83. Datasheet is here:
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* http://www.national.com/pf/LM/LM82.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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@ -52,7 +56,7 @@ static unsigned short normal_i2c[] = { 0x18, 0x19, 0x1a,
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* Insmod parameters
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*/
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I2C_CLIENT_INSMOD_1(lm83);
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I2C_CLIENT_INSMOD_2(lm83, lm82);
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/*
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* The LM83 registers
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@ -283,6 +287,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
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if (man_id == 0x01) { /* National Semiconductor */
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if (chip_id == 0x03) {
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kind = lm83;
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} else
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if (chip_id == 0x01) {
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kind = lm82;
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}
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}
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@ -296,6 +303,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
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if (kind == lm83) {
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name = "lm83";
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} else
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if (kind == lm82) {
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name = "lm82";
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}
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/* We can fill in the remaining client fields */
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@ -319,32 +329,46 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
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goto exit_detach;
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}
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/*
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* The LM82 can only monitor one external diode which is
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* at the same register as the LM83 temp3 entry - so we
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* declare 1 and 3 common, and then 2 and 4 only for the LM83.
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*/
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp1_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp3_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp4_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp1_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp3_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp4_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp1_crit.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_crit.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp3_crit.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp4_crit.dev_attr);
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device_create_file(&new_client->dev, &dev_attr_alarms);
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if (kind == lm83) {
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp4_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp4_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_crit.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp4_crit.dev_attr);
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}
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return 0;
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exit_detach:
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