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authorJeremy Lainé <jeremy.laine@m4x.org>2008-12-17 17:39:59 +0100
committerJeremy Lainé <jeremy.laine@m4x.org>2008-12-17 17:39:59 +0100
commit9dd5f2f30aec3141ed782e55b6671058e7239901 (patch)
tree9dac15b8277817596c23f87cbdea547632ac0831 /packages/linux/linux-2.6.26/boc01/007-081216-lm73.patch
parent0fb4b44bb38396d7ffbc7a8b2ee976d80e0edff8 (diff)
linux-2.6.26: update patches for boc01
Diffstat (limited to 'packages/linux/linux-2.6.26/boc01/007-081216-lm73.patch')
-rw-r--r--packages/linux/linux-2.6.26/boc01/007-081216-lm73.patch278
1 files changed, 278 insertions, 0 deletions
diff --git a/packages/linux/linux-2.6.26/boc01/007-081216-lm73.patch b/packages/linux/linux-2.6.26/boc01/007-081216-lm73.patch
new file mode 100644
index 0000000000..93d1a18121
--- /dev/null
+++ b/packages/linux/linux-2.6.26/boc01/007-081216-lm73.patch
@@ -0,0 +1,278 @@
+Index: linux-2.6.26-NEW/drivers/hwmon/Kconfig
+===================================================================
+--- linux-2.6.26-NEW.orig/drivers/hwmon/Kconfig
++++ linux-2.6.26-NEW/drivers/hwmon/Kconfig
+@@ -390,6 +390,15 @@ config SENSORS_LM70
+ 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-2.6.26-NEW/drivers/hwmon/Makefile
+===================================================================
+--- linux-2.6.26-NEW.orig/drivers/hwmon/Makefile
++++ linux-2.6.26-NEW/drivers/hwmon/Makefile
+@@ -47,6 +47,7 @@ obj-$(CONFIG_SENSORS_IT87) += it87.o
+ obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.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
+Index: linux-2.6.26-NEW/drivers/hwmon/lm73.c
+===================================================================
+--- /dev/null
++++ linux-2.6.26-NEW/drivers/hwmon/lm73.c
+@@ -0,0 +1,241 @@
++ /*
++ * LM73 Sensor driver
++ * Based on LM75
++ *
++ *
++ * Copyright (C) 2007, CenoSYS (www.cenosys.com).
++ * Guillaume Ligneul
++ * Guillaume.ligneul@gmail.com
++ *
++ * This software program is licensed subject to the GNU General Public License
++ * (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/slab.h>
++#include <linux/jiffies.h>
++#include <linux/i2c.h>
++#include <linux/hwmon.h>
++#include <linux/hwmon-sysfs.h>
++#include <linux/err.h>
++#include <linux/mutex.h>
++
++
++/* Addresses to scan */
++static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
++ 0x4d, 0x4e, 0x4f, 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_T_HIGH 0x02
++#define LM73_REG_T_LOW 0x03
++
++static const u8 LM73_REG_TEMP[3] = {
++ LM73_REG_INPUT, /* input */
++ LM73_REG_T_HIGH, /* max */
++ LM73_REG_T_LOW, /* min */
++};
++
++/* Each client has this additional data */
++struct lm73_data {
++ struct i2c_client client;
++ struct device *hwmon_dev;
++ struct mutex update_lock;
++ char valid; /* !=0 if following fields are valid */
++ unsigned long last_updated; /* In jiffies */
++ u16 temp[3]; /* Register values,
++ 0 = input
++ 1 = max
++ 2 = min */
++};
++
++static int lm73_attach_adapter(struct i2c_adapter *adapter);
++static int lm73_detect(struct i2c_adapter *adapter, int address, int kind);
++static int lm73_detach_client(struct i2c_client *client);
++static int lm73_read_value(struct i2c_client *client, u8 reg);
++static int lm73_write_value(struct i2c_client *client, u8 reg, short value);
++
++/* This is the driver that will be inserted */
++static struct i2c_driver lm73_driver = {
++ .driver = {
++ .name = "lm73",
++ },
++ .attach_adapter = lm73_attach_adapter,
++ .detach_client = lm73_detach_client,
++};
++
++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);
++ int iTemp = 0;
++
++ iTemp = lm73_read_value(client, LM73_REG_TEMP[attr->index]);
++
++ return sprintf(buf, "%d\n", iTemp);
++
++
++}
++
++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);
++ int nr = attr->index;
++
++ long tmp = simple_strtol(buf, NULL, 10);
++
++ lm73_write_value(client, LM73_REG_TEMP[nr], tmp);
++ return count;
++}
++
++static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
++ show_temp, set_temp, 1);
++static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
++ show_temp, set_temp, 2);
++static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
++
++static int lm73_attach_adapter(struct i2c_adapter *adapter)
++{
++ if (!(adapter->class & I2C_CLASS_HWMON))
++ return 0;
++
++ return i2c_probe(adapter, &addr_data, lm73_detect);
++}
++
++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,
++};
++
++/* This function is called by i2c_probe */
++static int lm73_detect(struct i2c_adapter *adapter, int address, int kind)
++{
++ struct i2c_client *new_client;
++ struct lm73_data *data;
++ int err = 0;
++ const char *name = "";
++
++ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
++ I2C_FUNC_SMBUS_WORD_DATA))
++ goto exit;
++
++ if (!(data = kzalloc(sizeof(struct lm73_data), GFP_KERNEL))) {
++ err = -ENOMEM;
++ goto exit;
++ }
++
++ new_client = &data->client;
++ i2c_set_clientdata(new_client, data);
++ new_client->addr = address;
++ new_client->adapter = adapter;
++ new_client->driver = &lm73_driver;
++ new_client->flags = 0;
++
++ name = "lm73";
++
++ /* Fill in the remaining client fields and put it into the global list */
++ strlcpy(new_client->name, name, I2C_NAME_SIZE);
++ data->valid = 0;
++ mutex_init(&data->update_lock);
++
++ /* Tell the I2C layer a new client has arrived */
++ if ((err = i2c_attach_client(new_client)))
++ goto exit_free;
++
++ /* Register sysfs hooks */
++ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm73_group)))
++ goto exit_detach;
++
++ data->hwmon_dev = hwmon_device_register(&new_client->dev);
++ if (IS_ERR(data->hwmon_dev)) {
++ err = PTR_ERR(data->hwmon_dev);
++ goto exit_remove;
++ }
++
++ return 0;
++
++exit_remove:
++ sysfs_remove_group(&new_client->dev.kobj, &lm73_group);
++exit_detach:
++ i2c_detach_client(new_client);
++exit_free:
++ kfree(data);
++exit:
++ return err;
++}
++
++static int lm73_detach_client(struct i2c_client *client)
++{
++ struct lm73_data *data = i2c_get_clientdata(client);
++ hwmon_device_unregister(data->hwmon_dev);
++ sysfs_remove_group(&client->dev.kobj, &lm73_group);
++ i2c_detach_client(client);
++ kfree(data);
++ return 0;
++}
++
++static int lm73_read_value(struct i2c_client *client, u8 reg)
++{
++ short sVal;
++
++ if (reg == LM73_REG_CONF)
++ return i2c_smbus_read_byte_data(client, reg);
++ else
++ {
++ sVal = swab16(i2c_smbus_read_word_data(client, reg));
++ sVal = sVal >> 7;
++
++ if ( sVal & 0xFFFF ) {
++ sVal = sVal - 0x1;
++ sVal = ~sVal;
++
++ return -sVal;
++ }
++ else {
++ return sVal;
++ }
++ }
++}
++
++static int lm73_write_value(struct i2c_client *client, u8 reg, short value)
++{
++ if (reg == LM73_REG_CONF)
++ return i2c_smbus_write_byte_data(client, reg, value);
++ else
++ {
++ value = value<<7;
++ return i2c_smbus_write_word_data(client, reg, swab16(value));
++ }
++}
++
++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("Ligneul Guillaume <guillaume.ligneul@gmail.com>");
++MODULE_DESCRIPTION("LM73 driver");
++MODULE_LICENSE("GPL");
++
++module_init(sensors_lm73_init);
++module_exit(sensors_lm73_exit);