diff options
Diffstat (limited to 'recipes/linux/linux-2.6.31/boc01/007-091005-lm73.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.31/boc01/007-091005-lm73.patch | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.31/boc01/007-091005-lm73.patch b/recipes/linux/linux-2.6.31/boc01/007-091005-lm73.patch new file mode 100644 index 0000000000..bc43a0a70a --- /dev/null +++ b/recipes/linux/linux-2.6.31/boc01/007-091005-lm73.patch @@ -0,0 +1,242 @@ +Index: linux-2.6.29/drivers/hwmon/Kconfig +=================================================================== +--- linux-2.6.29.orig/drivers/hwmon/Kconfig 2009-10-05 18:27:57.000000000 +0200 ++++ linux-2.6.29/drivers/hwmon/Kconfig 2009-10-05 18:28:35.000000000 +0200 +@@ -448,6 +448,15 @@ + This driver can also be built as a module. If so, the module + will be called lm70. + ++config SENSORS_LM73 ++ tristate "National Semiconductor LM73" ++ depends on I2C ++ help ++ If you say yes here you get support for National Semiconductor LM73 ++ sensor chips. ++ This driver can also be built as a module. If so, the module ++ will be called lm73. ++ + config SENSORS_LM75 + tristate "National Semiconductor LM75 and compatibles" + depends on I2C +Index: linux-2.6.29/drivers/hwmon/lm73.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.29/drivers/hwmon/lm73.c 2009-10-05 18:28:49.000000000 +0200 +@@ -0,0 +1,205 @@ ++/* ++ * LM73 Sensor driver ++ * Based on LM75 ++ * ++ * Copyright (C) 2007, CenoSYS (www.cenosys.com). ++ * Copyright (C) 2009, Bollore telecom (www.bolloretelecom.eu). ++ * ++ * Guillaume Ligneul <guillaume.ligneul@cenosys.com> ++ * Adrien Demarez <adrien.demarez@bolloretelecom.eu> ++ * Jeremy Laine <jeremy.laine@bolloretelecom.eu> ++ * ++ * This software program is licensed subject to the GNU General Public License ++ * (GPL).Version 2,June 1991, available at ++ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html ++ */ ++ ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/slab.h> ++#include <linux/i2c.h> ++#include <linux/hwmon.h> ++#include <linux/hwmon-sysfs.h> ++#include <linux/err.h> ++ ++ ++/* Addresses scanned */ ++static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4c, ++ 0x4d, 0x4e, I2C_CLIENT_END }; ++ ++/* Insmod parameters */ ++I2C_CLIENT_INSMOD_1(lm73); ++ ++/* LM73 registers */ ++#define LM73_REG_INPUT 0x00 ++#define LM73_REG_CONF 0x01 ++#define LM73_REG_MAX 0x02 ++#define LM73_REG_MIN 0x03 ++#define LM73_REG_CTRL 0x04 ++#define LM73_REG_ID 0x07 ++ ++#define LM73_ID 0x9001 /* or 0x190 after a swab16() */ ++#define DRVNAME "lm73" ++#define LM73_TEMP_MIN (-40) ++#define LM73_TEMP_MAX 150 ++ ++/*-----------------------------------------------------------------------*/ ++ ++ ++static ssize_t set_temp(struct device *dev, struct device_attribute *da, ++ const char *buf, size_t count) ++{ ++ struct sensor_device_attribute *attr = to_sensor_dev_attr(da); ++ struct i2c_client *client = to_i2c_client(dev); ++ long temp; ++ short value; ++ ++ int status = strict_strtol(buf, 10, &temp); ++ if(status < 0) ++ return status; ++ ++ /* Write value */ ++ value = (short) SENSORS_LIMIT(temp/250, (LM73_TEMP_MIN*4), ++ (LM73_TEMP_MAX*4)) << 5; ++ i2c_smbus_write_word_data(client, attr->index, swab16(value)); ++ return count; ++} ++ ++static ssize_t show_temp(struct device *dev, struct device_attribute *da, ++ char *buf) ++{ ++ struct sensor_device_attribute *attr = to_sensor_dev_attr(da); ++ struct i2c_client *client = to_i2c_client(dev); ++ /* use integer division instead of equivalent right shift to ++ guarantee arithmetic shift and preserve the sign */ ++ int temp = ((s16) (swab16(i2c_smbus_read_word_data(client, ++ attr->index)))*250) / 32; ++ return sprintf(buf, "%d\n", temp); ++} ++ ++ ++/*-----------------------------------------------------------------------*/ ++ ++/* sysfs attributes for hwmon */ ++ ++static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, ++ show_temp, set_temp, LM73_REG_MAX); ++static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, ++ show_temp, set_temp, LM73_REG_MIN); ++static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, ++ show_temp, NULL, LM73_REG_INPUT); ++ ++ ++static struct attribute *lm73_attributes[] = { ++ &sensor_dev_attr_temp1_input.dev_attr.attr, ++ &sensor_dev_attr_temp1_max.dev_attr.attr, ++ &sensor_dev_attr_temp1_min.dev_attr.attr, ++ ++ NULL ++}; ++ ++static const struct attribute_group lm73_group = { ++ .attrs = lm73_attributes, ++}; ++ ++/*-----------------------------------------------------------------------*/ ++ ++/* device probe and removal */ ++ ++static int ++lm73_probe(struct i2c_client *client, const struct i2c_device_id *id) ++{ ++ struct device *hwmon_dev; ++ int status; ++ ++ /* Register sysfs hooks */ ++ status = sysfs_create_group(&client->dev.kobj, &lm73_group); ++ if (status) ++ return status; ++ ++ hwmon_dev = hwmon_device_register(&client->dev); ++ if (IS_ERR(hwmon_dev)) { ++ status = PTR_ERR(hwmon_dev); ++ goto exit_remove; ++ } ++ i2c_set_clientdata(client, hwmon_dev); ++ ++ dev_info(&client->dev, "%s: sensor '%s'\n", ++ dev_name(hwmon_dev), client->name); ++ ++ return 0; ++ ++exit_remove: ++ sysfs_remove_group(&client->dev.kobj, &lm73_group); ++ return status; ++} ++ ++static int lm73_remove(struct i2c_client *client) ++{ ++ struct device *hwmon_dev = i2c_get_clientdata(client); ++ ++ hwmon_device_unregister(hwmon_dev); ++ sysfs_remove_group(&client->dev.kobj, &lm73_group); ++ i2c_set_clientdata(client, NULL); ++ return 0; ++} ++ ++static const struct i2c_device_id lm73_ids[] = { ++ { "lm73", lm73 }, ++ { /* LIST END */ } ++}; ++MODULE_DEVICE_TABLE(i2c, lm73_ids); ++ ++/* Return 0 if detection is successful, -ENODEV otherwise */ ++static int lm73_detect(struct i2c_client *new_client, int kind, ++ struct i2c_board_info *info) ++{ ++ struct i2c_adapter *adapter = new_client->adapter; ++ u16 id; ++ u8 ctrl; ++ ++ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | ++ I2C_FUNC_SMBUS_WORD_DATA)) ++ return -ENODEV; ++ ++ /* Check device ID */ ++ id = i2c_smbus_read_word_data(new_client, LM73_REG_ID); ++ ctrl = i2c_smbus_read_byte_data(new_client, LM73_REG_CTRL); ++ if ((id != LM73_ID) || (ctrl & 0x10)) ++ return -ENODEV; ++ ++ strlcpy(info->type, "lm73", I2C_NAME_SIZE); ++ ++ return 0; ++} ++ ++static struct i2c_driver lm73_driver = { ++ .class = I2C_CLASS_HWMON, ++ .driver = { ++ .name = "lm73", ++ }, ++ .probe = lm73_probe, ++ .remove = lm73_remove, ++ .id_table = lm73_ids, ++ .detect = lm73_detect, ++ .address_data = &addr_data, ++}; ++ ++/* module glue */ ++ ++static int __init sensors_lm73_init(void) ++{ ++ return i2c_add_driver(&lm73_driver); ++} ++ ++static void __exit sensors_lm73_exit(void) ++{ ++ i2c_del_driver(&lm73_driver); ++} ++ ++MODULE_AUTHOR("Guillaume Ligneul <guillaume.ligneul@cenosys.com>"); ++MODULE_DESCRIPTION("LM73 driver"); ++MODULE_LICENSE("GPL"); ++ ++module_init(sensors_lm73_init); ++module_exit(sensors_lm73_exit); +Index: linux-2.6.29/drivers/hwmon/Makefile +=================================================================== +--- linux-2.6.29.orig/drivers/hwmon/Makefile 2009-10-05 18:27:57.000000000 +0200 ++++ linux-2.6.29/drivers/hwmon/Makefile 2009-10-05 18:28:35.000000000 +0200 +@@ -54,6 +54,7 @@ + obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o hp_accel.o + obj-$(CONFIG_SENSORS_LM63) += lm63.o + obj-$(CONFIG_SENSORS_LM70) += lm70.o ++obj-$(CONFIG_SENSORS_LM73) += lm73.o + obj-$(CONFIG_SENSORS_LM75) += lm75.o + obj-$(CONFIG_SENSORS_LM77) += lm77.o + obj-$(CONFIG_SENSORS_LM78) += lm78.o |