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Diffstat (limited to 'drivers/hwmon/adm1025.c')
-rw-r--r--drivers/hwmon/adm1025.c631
1 files changed, 335 insertions, 296 deletions
diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c
index 9331c56d2ba..9ffc4c8ca8b 100644
--- a/drivers/hwmon/adm1025.c
+++ b/drivers/hwmon/adm1025.c
@@ -2,7 +2,7 @@
* adm1025.c
*
* Copyright (C) 2000 Chen-Yuan Wu <gwu@esoft.com>
- * Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2003-2009 Jean Delvare <jdelvare@suse.de>
*
* The ADM1025 is a sensor chip made by Analog Devices. It reports up to 6
* voltages (including its own power source) and up to two temperatures
@@ -12,7 +12,7 @@
* resolution of about 0.5% of the nominal value). Temperature values are
* reported with a 1 deg resolution and a 3 deg accuracy. Complete
* datasheet can be obtained from Analog's website at:
- * http://www.analog.com/Analog_Root/productPage/productHome/0,2121,ADM1025,00.html
+ * http://www.onsemi.com/PowerSolutions/product.do?id=ADM1025
*
* This driver also supports the ADM1025A, which differs from the ADM1025
* only in that it has "open-drain VID inputs while the ADM1025 has
@@ -51,8 +51,10 @@
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
#include <linux/hwmon-vid.h>
#include <linux/err.h>
+#include <linux/mutex.h>
/*
* Addresses to scan
@@ -60,20 +62,16 @@
* NE1619 has two possible addresses: 0x2c and 0x2d.
*/
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
-/*
- * Insmod parameters
- */
-
-I2C_CLIENT_INSMOD_2(adm1025, ne1619);
+enum chips { adm1025, ne1619 };
/*
* The ADM1025 registers
*/
#define ADM1025_REG_MAN_ID 0x3E
-#define ADM1025_REG_CHIP_ID 0x3F
+#define ADM1025_REG_CHIP_ID 0x3F
#define ADM1025_REG_CONFIG 0x40
#define ADM1025_REG_STATUS1 0x41
#define ADM1025_REG_STATUS2 0x42
@@ -91,39 +89,52 @@ I2C_CLIENT_INSMOD_2(adm1025, ne1619);
* The ADM1025 uses signed 8-bit values for temperatures.
*/
-static int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
+static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
-#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192)
-#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \
+#define IN_FROM_REG(reg, scale) (((reg) * (scale) + 96) / 192)
+#define IN_TO_REG(val, scale) ((val) <= 0 ? 0 : \
(val) * 192 >= (scale) * 255 ? 255 : \
- ((val) * 192 + (scale)/2) / (scale))
+ ((val) * 192 + (scale) / 2) / (scale))
#define TEMP_FROM_REG(reg) ((reg) * 1000)
#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \
(val) >= 126500 ? 127 : \
- (((val) < 0 ? (val)-500 : (val)+500) / 1000))
+ (((val) < 0 ? (val) - 500 : \
+ (val) + 500) / 1000))
/*
* Functions declaration
*/
-static int adm1025_attach_adapter(struct i2c_adapter *adapter);
-static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind);
+static int adm1025_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int adm1025_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
static void adm1025_init_client(struct i2c_client *client);
-static int adm1025_detach_client(struct i2c_client *client);
+static int adm1025_remove(struct i2c_client *client);
static struct adm1025_data *adm1025_update_device(struct device *dev);
/*
* Driver data (common to all clients)
*/
+static const struct i2c_device_id adm1025_id[] = {
+ { "adm1025", adm1025 },
+ { "ne1619", ne1619 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adm1025_id);
+
static struct i2c_driver adm1025_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "adm1025",
},
- .id = I2C_DRIVERID_ADM1025,
- .attach_adapter = adm1025_attach_adapter,
- .detach_client = adm1025_detach_client,
+ .probe = adm1025_probe,
+ .remove = adm1025_remove,
+ .id_table = adm1025_id,
+ .detect = adm1025_detect,
+ .address_list = normal_i2c,
};
/*
@@ -131,9 +142,8 @@ static struct i2c_driver adm1025_driver = {
*/
struct adm1025_data {
- struct i2c_client client;
- struct class_device *class_dev;
- struct semaphore update_lock;
+ struct device *hwmon_dev;
+ struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
@@ -152,86 +162,106 @@ struct adm1025_data {
* Sysfs stuff
*/
-#define show_in(offset) \
-static ssize_t show_in##offset(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
- in_scale[offset])); \
-} \
-static ssize_t show_in##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
- in_scale[offset])); \
-} \
-static ssize_t show_in##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
- in_scale[offset])); \
-} \
-static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL);
-show_in(0);
-show_in(1);
-show_in(2);
-show_in(3);
-show_in(4);
-show_in(5);
-
-#define show_temp(offset) \
-static ssize_t show_temp##offset(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
-} \
-static ssize_t show_temp##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
-} \
-static ssize_t show_temp##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
-}\
-static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp##offset, NULL);
-show_temp(1);
-show_temp(2);
+static ssize_t
+show_in(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in[index],
+ in_scale[index]));
+}
+
+static ssize_t
+show_in_min(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[index],
+ in_scale[index]));
+}
+
+static ssize_t
+show_in_max(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[index],
+ in_scale[index]));
+}
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[index]));
+}
+
+static ssize_t
+show_temp_min(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[index]));
+}
+
+static ssize_t
+show_temp_max(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[index]));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1025_data *data = i2c_get_clientdata(client);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->in_min[index] = IN_TO_REG(val, in_scale[index]);
+ i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MIN(index),
+ data->in_min[index]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1025_data *data = i2c_get_clientdata(client);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->in_max[index] = IN_TO_REG(val, in_scale[index]);
+ i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(index),
+ data->in_max[index]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
#define set_in(offset) \
-static ssize_t set_in##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- long val = simple_strtol(buf, NULL, 10); \
- \
- down(&data->update_lock); \
- data->in_min[offset] = IN_TO_REG(val, in_scale[offset]); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MIN(offset), \
- data->in_min[offset]); \
- up(&data->update_lock); \
- return count; \
-} \
-static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- long val = simple_strtol(buf, NULL, 10); \
- \
- down(&data->update_lock); \
- data->in_max[offset] = IN_TO_REG(val, in_scale[offset]); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(offset), \
- data->in_max[offset]); \
- up(&data->update_lock); \
- return count; \
-} \
-static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
- show_in##offset##_min, set_in##offset##_min); \
-static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
- show_in##offset##_max, set_in##offset##_max);
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+ show_in, NULL, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
+ show_in_min, set_in_min, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
+ show_in_max, set_in_max, offset)
set_in(0);
set_in(1);
set_in(2);
@@ -239,66 +269,109 @@ set_in(3);
set_in(4);
set_in(5);
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1025_data *data = i2c_get_clientdata(client);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->temp_min[index] = TEMP_TO_REG(val);
+ i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_LOW(index),
+ data->temp_min[index]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1025_data *data = i2c_get_clientdata(client);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->temp_max[index] = TEMP_TO_REG(val);
+ i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(index),
+ data->temp_max[index]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
#define set_temp(offset) \
-static ssize_t set_temp##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- long val = simple_strtol(buf, NULL, 10); \
- \
- down(&data->update_lock); \
- data->temp_min[offset-1] = TEMP_TO_REG(val); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_LOW(offset-1), \
- data->temp_min[offset-1]); \
- up(&data->update_lock); \
- return count; \
-} \
-static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- long val = simple_strtol(buf, NULL, 10); \
- \
- down(&data->update_lock); \
- data->temp_max[offset-1] = TEMP_TO_REG(val); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(offset-1), \
- data->temp_max[offset-1]); \
- up(&data->update_lock); \
- return count; \
-} \
-static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
- show_temp##offset##_min, set_temp##offset##_min); \
-static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
- show_temp##offset##_max, set_temp##offset##_max);
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+ show_temp, NULL, offset - 1); \
+static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
+ show_temp_min, set_temp_min, offset - 1); \
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
+ show_temp_max, set_temp_max, offset - 1)
set_temp(1);
set_temp(2);
-static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t
+show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
{
struct adm1025_data *data = adm1025_update_device(dev);
return sprintf(buf, "%u\n", data->alarms);
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
-static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t
+show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
+
+static ssize_t
+show_vid(struct device *dev, struct device_attribute *attr, char *buf)
{
struct adm1025_data *data = adm1025_update_device(dev);
return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
-static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t
+show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct adm1025_data *data = adm1025_update_device(dev);
+ struct adm1025_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", data->vrm);
}
-static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1025_data *data = i2c_get_clientdata(client);
- data->vrm = simple_strtoul(buf, NULL, 10);
+ struct adm1025_data *data = dev_get_drvdata(dev);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ data->vrm = val;
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
@@ -307,158 +380,138 @@ static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
* Real code
*/
-static int adm1025_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, adm1025_detect);
-}
+static struct attribute *adm1025_attributes[] = {
+ &sensor_dev_attr_in0_input.dev_attr.attr,
+ &sensor_dev_attr_in1_input.dev_attr.attr,
+ &sensor_dev_attr_in2_input.dev_attr.attr,
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in0_min.dev_attr.attr,
+ &sensor_dev_attr_in1_min.dev_attr.attr,
+ &sensor_dev_attr_in2_min.dev_attr.attr,
+ &sensor_dev_attr_in3_min.dev_attr.attr,
+ &sensor_dev_attr_in5_min.dev_attr.attr,
+ &sensor_dev_attr_in0_max.dev_attr.attr,
+ &sensor_dev_attr_in1_max.dev_attr.attr,
+ &sensor_dev_attr_in2_max.dev_attr.attr,
+ &sensor_dev_attr_in3_max.dev_attr.attr,
+ &sensor_dev_attr_in5_max.dev_attr.attr,
+ &sensor_dev_attr_in0_alarm.dev_attr.attr,
+ &sensor_dev_attr_in1_alarm.dev_attr.attr,
+ &sensor_dev_attr_in2_alarm.dev_attr.attr,
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ &sensor_dev_attr_in5_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_fault.dev_attr.attr,
+ &dev_attr_alarms.attr,
+ &dev_attr_cpu0_vid.attr,
+ &dev_attr_vrm.attr,
+ NULL
+};
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- struct i2c_client *new_client;
- struct adm1025_data *data;
- int err = 0;
- const char *name = "";
- u8 config;
+static const struct attribute_group adm1025_group = {
+ .attrs = adm1025_attributes,
+};
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- goto exit;
+static struct attribute *adm1025_attributes_in4[] = {
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
+ &sensor_dev_attr_in4_alarm.dev_attr.attr,
+ NULL
+};
- if (!(data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
+static const struct attribute_group adm1025_group_in4 = {
+ .attrs = adm1025_attributes_in4,
+};
- /* The common I2C client data is placed right before the
- ADM1025-specific data. */
- new_client = &data->client;
- i2c_set_clientdata(new_client, data);
- new_client->addr = address;
- new_client->adapter = adapter;
- new_client->driver = &adm1025_driver;
- new_client->flags = 0;
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1025_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ const char *name;
+ u8 man_id, chip_id;
- /*
- * Now we do the remaining detection. A negative kind means that
- * the driver was loaded with no force parameter (default), so we
- * must both detect and identify the chip. A zero kind means that
- * the driver was loaded with the force parameter, the detection
- * step shall be skipped. A positive kind means that the driver
- * was loaded with the force parameter and a given kind of chip is
- * requested, so both the detection and the identification steps
- * are skipped.
- */
- config = i2c_smbus_read_byte_data(new_client, ADM1025_REG_CONFIG);
- if (kind < 0) { /* detection */
- if ((config & 0x80) != 0x00
- || (i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_STATUS1) & 0xC0) != 0x00
- || (i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
- dev_dbg(&adapter->dev,
- "ADM1025 detection failed at 0x%02x.\n",
- address);
- goto exit_free;
- }
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ /* Check for unused bits */
+ if ((i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG) & 0x80)
+ || (i2c_smbus_read_byte_data(client, ADM1025_REG_STATUS1) & 0xC0)
+ || (i2c_smbus_read_byte_data(client, ADM1025_REG_STATUS2) & 0xBC)) {
+ dev_dbg(&adapter->dev, "ADM1025 detection failed at 0x%02x\n",
+ client->addr);
+ return -ENODEV;
}
- if (kind <= 0) { /* identification */
- u8 man_id, chip_id;
-
- man_id = i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_MAN_ID);
- chip_id = i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_CHIP_ID);
-
- if (man_id == 0x41) { /* Analog Devices */
- if ((chip_id & 0xF0) == 0x20) { /* ADM1025/ADM1025A */
- kind = adm1025;
- }
- } else
- if (man_id == 0xA1) { /* Philips */
- if (address != 0x2E
- && (chip_id & 0xF0) == 0x20) { /* NE1619 */
- kind = ne1619;
- }
- }
-
- if (kind <= 0) { /* identification failed */
- dev_info(&adapter->dev,
- "Unsupported chip (man_id=0x%02X, "
- "chip_id=0x%02X).\n", man_id, chip_id);
- goto exit_free;
- }
- }
+ /* Identification */
+ chip_id = i2c_smbus_read_byte_data(client, ADM1025_REG_CHIP_ID);
+ if ((chip_id & 0xF0) != 0x20)
+ return -ENODEV;
- if (kind == adm1025) {
+ man_id = i2c_smbus_read_byte_data(client, ADM1025_REG_MAN_ID);
+ if (man_id == 0x41)
name = "adm1025";
- } else if (kind == ne1619) {
+ else if (man_id == 0xA1 && client->addr != 0x2E)
name = "ne1619";
- }
+ else
+ return -ENODEV;
- /* We can fill in the remaining client fields */
- strlcpy(new_client->name, name, I2C_NAME_SIZE);
- data->valid = 0;
- init_MUTEX(&data->update_lock);
+ strlcpy(info->type, name, I2C_NAME_SIZE);
+
+ return 0;
+}
+
+static int adm1025_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adm1025_data *data;
+ int err;
+ u8 config;
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(new_client)))
- goto exit_free;
+ data = devm_kzalloc(&client->dev, sizeof(struct adm1025_data),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, data);
+ mutex_init(&data->update_lock);
/* Initialize the ADM1025 chip */
- adm1025_init_client(new_client);
+ adm1025_init_client(client);
/* Register sysfs hooks */
- data->class_dev = hwmon_device_register(&new_client->dev);
- if (IS_ERR(data->class_dev)) {
- err = PTR_ERR(data->class_dev);
- goto exit_detach;
- }
-
- device_create_file(&new_client->dev, &dev_attr_in0_input);
- device_create_file(&new_client->dev, &dev_attr_in1_input);
- device_create_file(&new_client->dev, &dev_attr_in2_input);
- device_create_file(&new_client->dev, &dev_attr_in3_input);
- device_create_file(&new_client->dev, &dev_attr_in5_input);
- device_create_file(&new_client->dev, &dev_attr_in0_min);
- device_create_file(&new_client->dev, &dev_attr_in1_min);
- device_create_file(&new_client->dev, &dev_attr_in2_min);
- device_create_file(&new_client->dev, &dev_attr_in3_min);
- device_create_file(&new_client->dev, &dev_attr_in5_min);
- device_create_file(&new_client->dev, &dev_attr_in0_max);
- device_create_file(&new_client->dev, &dev_attr_in1_max);
- device_create_file(&new_client->dev, &dev_attr_in2_max);
- device_create_file(&new_client->dev, &dev_attr_in3_max);
- device_create_file(&new_client->dev, &dev_attr_in5_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_temp2_input);
- device_create_file(&new_client->dev, &dev_attr_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_temp2_min);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp2_max);
- device_create_file(&new_client->dev, &dev_attr_alarms);
- device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
- device_create_file(&new_client->dev, &dev_attr_vrm);
+ err = sysfs_create_group(&client->dev.kobj, &adm1025_group);
+ if (err)
+ return err;
/* Pin 11 is either in4 (+12V) or VID4 */
+ config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
if (!(config & 0x20)) {
- device_create_file(&new_client->dev, &dev_attr_in4_input);
- device_create_file(&new_client->dev, &dev_attr_in4_min);
- device_create_file(&new_client->dev, &dev_attr_in4_max);
+ err = sysfs_create_group(&client->dev.kobj, &adm1025_group_in4);
+ if (err)
+ goto exit_remove;
+ }
+
+ data->hwmon_dev = hwmon_device_register(&client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto exit_remove;
}
return 0;
-exit_detach:
- i2c_detach_client(new_client);
-exit_free:
- kfree(data);
-exit:
+exit_remove:
+ sysfs_remove_group(&client->dev.kobj, &adm1025_group);
+ sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
return err;
}
@@ -478,7 +531,7 @@ static void adm1025_init_client(struct i2c_client *client)
* setting yet, we better set the high limits to the max so that
* no alarm triggers.
*/
- for (i=0; i<6; i++) {
+ for (i = 0; i < 6; i++) {
reg = i2c_smbus_read_byte_data(client,
ADM1025_REG_IN_MAX(i));
if (reg == 0)
@@ -486,7 +539,7 @@ static void adm1025_init_client(struct i2c_client *client)
ADM1025_REG_IN_MAX(i),
0xFF);
}
- for (i=0; i<2; i++) {
+ for (i = 0; i < 2; i++) {
reg = i2c_smbus_read_byte_data(client,
ADM1025_REG_TEMP_HIGH(i));
if (reg == 0)
@@ -504,17 +557,14 @@ static void adm1025_init_client(struct i2c_client *client)
(reg&0x7E)|0x01);
}
-static int adm1025_detach_client(struct i2c_client *client)
+static int adm1025_remove(struct i2c_client *client)
{
struct adm1025_data *data = i2c_get_clientdata(client);
- int err;
- hwmon_device_unregister(data->class_dev);
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &adm1025_group);
+ sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
- if ((err = i2c_detach_client(client)))
- return err;
-
- kfree(data);
return 0;
}
@@ -523,13 +573,13 @@ static struct adm1025_data *adm1025_update_device(struct device *dev)
struct i2c_client *client = to_i2c_client(dev);
struct adm1025_data *data = i2c_get_clientdata(client);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
int i;
dev_dbg(&client->dev, "Updating data.\n");
- for (i=0; i<6; i++) {
+ for (i = 0; i < 6; i++) {
data->in[i] = i2c_smbus_read_byte_data(client,
ADM1025_REG_IN(i));
data->in_min[i] = i2c_smbus_read_byte_data(client,
@@ -537,7 +587,7 @@ static struct adm1025_data *adm1025_update_device(struct device *dev)
data->in_max[i] = i2c_smbus_read_byte_data(client,
ADM1025_REG_IN_MAX(i));
}
- for (i=0; i<2; i++) {
+ for (i = 0; i < 2; i++) {
data->temp[i] = i2c_smbus_read_byte_data(client,
ADM1025_REG_TEMP(i));
data->temp_min[i] = i2c_smbus_read_byte_data(client,
@@ -558,24 +608,13 @@ static struct adm1025_data *adm1025_update_device(struct device *dev)
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}
-static int __init sensors_adm1025_init(void)
-{
- return i2c_add_driver(&adm1025_driver);
-}
+module_i2c_driver(adm1025_driver);
-static void __exit sensors_adm1025_exit(void)
-{
- i2c_del_driver(&adm1025_driver);
-}
-
-MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
MODULE_DESCRIPTION("ADM1025 driver");
MODULE_LICENSE("GPL");
-
-module_init(sensors_adm1025_init);
-module_exit(sensors_adm1025_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 19:52:11 +0000