diff options
| -rw-r--r-- | Documentation/hwmon/lm87 | 11 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/hwmon/lm87.c | 25 |
3 files changed, 29 insertions, 11 deletions
diff --git a/Documentation/hwmon/lm87 b/Documentation/hwmon/lm87 index c952c57f0e11..ec27aa1b94cb 100644 --- a/Documentation/hwmon/lm87 +++ b/Documentation/hwmon/lm87 @@ -4,8 +4,12 @@ Kernel driver lm87 Supported chips: * National Semiconductor LM87 Prefix: 'lm87' - Addresses scanned: I2C 0x2c - 0x2f + Addresses scanned: I2C 0x2c - 0x2e Datasheet: http://www.national.com/pf/LM/LM87.html + * Analog Devices ADM1024 + Prefix: 'adm1024' + Addresses scanned: I2C 0x2c - 0x2e + Datasheet: http://www.analog.com/en/prod/0,2877,ADM1024,00.html Authors: Frodo Looijaard <frodol@dds.nl>, @@ -19,11 +23,12 @@ Authors: Description ----------- -This driver implements support for the National Semiconductor LM87. +This driver implements support for the National Semiconductor LM87 +and the Analog Devices ADM1024. The LM87 implements up to three temperature sensors, up to two fan rotation speed sensors, up to seven voltage sensors, alarms, and some -miscellaneous stuff. +miscellaneous stuff. The ADM1024 is fully compatible. Temperatures are measured in degrees Celsius. Each input has a high and low alarm settings. A high limit produces an alarm when the value diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index a2187df5cc78..af43d566d770 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -433,12 +433,12 @@ config SENSORS_LM85 will be called lm85. config SENSORS_LM87 - tristate "National Semiconductor LM87" + tristate "National Semiconductor LM87 and compatibles" depends on I2C select HWMON_VID help If you say yes here you get support for National Semiconductor LM87 - sensor chips. + and Analog Devices ADM1024 sensor chips. This driver can also be built as a module. If so, the module will be called lm87. diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index 28cdff0c556b..3ab4c3f0efdd 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c @@ -5,7 +5,7 @@ * Philip Edelbrock <phil@netroedge.com> * Stephen Rousset <stephen.rousset@rocketlogix.com> * Dan Eaton <dan.eaton@rocketlogix.com> - * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2004,2007 Jean Delvare <khali@linux-fr.org> * * Original port to Linux 2.6 by Jeff Oliver. * @@ -37,6 +37,11 @@ * instead. The LM87 is the only hardware monitoring chipset I know of * which uses amplitude modulation. Be careful when using this feature. * + * This driver also supports the ADM1024, a sensor chip made by Analog + * Devices. That chip is fully compatible with the LM87. Complete + * datasheet can be obtained from Analog's website at: + * http://www.analog.com/en/prod/0,2877,ADM1024,00.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 @@ -74,7 +79,7 @@ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; * Insmod parameters */ -I2C_CLIENT_INSMOD_1(lm87); +I2C_CLIENT_INSMOD_2(lm87, adm1024); /* * The LM87 registers @@ -662,6 +667,7 @@ static int lm87_detect(struct i2c_adapter *adapter, int address, int kind) struct i2c_client *new_client; struct lm87_data *data; int err = 0; + static const char *names[] = { "lm87", "adm1024" }; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) goto exit; @@ -686,11 +692,18 @@ static int lm87_detect(struct i2c_adapter *adapter, int address, int kind) /* Now, we do the remaining detection. */ if (kind < 0) { + u8 cid = lm87_read_value(new_client, LM87_REG_COMPANY_ID); u8 rev = lm87_read_value(new_client, LM87_REG_REVISION); - if (rev < 0x01 || rev > 0x08 - || (lm87_read_value(new_client, LM87_REG_CONFIG) & 0x80) - || lm87_read_value(new_client, LM87_REG_COMPANY_ID) != 0x02) { + if (cid == 0x02 /* National Semiconductor */ + && (rev >= 0x01 && rev <= 0x08)) + kind = lm87; + else if (cid == 0x41 /* Analog Devices */ + && (rev & 0xf0) == 0x10) + kind = adm1024; + + if (kind < 0 + || (lm87_read_value(new_client, LM87_REG_CONFIG) & 0x80)) { dev_dbg(&adapter->dev, "LM87 detection failed at 0x%02x.\n", address); @@ -699,7 +712,7 @@ static int lm87_detect(struct i2c_adapter *adapter, int address, int kind) } /* We can fill in the remaining client fields */ - strlcpy(new_client->name, "lm87", I2C_NAME_SIZE); + strlcpy(new_client->name, names[kind - 1], I2C_NAME_SIZE); data->valid = 0; mutex_init(&data->update_lock); |