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Diffstat (limited to 'drivers/hwmon/adm1025.c')
-rw-r--r--drivers/hwmon/adm1025.c178
1 files changed, 77 insertions, 101 deletions
diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c
index 4db04d603ec..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) 2003-2008 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
@@ -64,11 +64,7 @@
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
@@ -95,15 +91,16 @@ I2C_CLIENT_INSMOD_2(adm1025, ne1619);
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
@@ -111,7 +108,7 @@ static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
static int adm1025_probe(struct i2c_client *client,
const struct i2c_device_id *id);
-static int adm1025_detect(struct i2c_client *client, int kind,
+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_remove(struct i2c_client *client);
@@ -137,7 +134,7 @@ static struct i2c_driver adm1025_driver = {
.remove = adm1025_remove,
.id_table = adm1025_id,
.detect = adm1025_detect,
- .address_data = &addr_data,
+ .address_list = normal_i2c,
};
/*
@@ -222,7 +219,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
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 = simple_strtol(buf, NULL, 10);
+ 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]);
@@ -238,7 +240,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
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 = simple_strtol(buf, NULL, 10);
+ 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]);
@@ -268,7 +275,12 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
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 = simple_strtol(buf, NULL, 10);
+ 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);
@@ -284,7 +296,12 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
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 = simple_strtol(buf, NULL, 10);
+ 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);
@@ -347,7 +364,14 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct adm1025_data *data = dev_get_drvdata(dev);
- data->vrm = simple_strtoul(buf, NULL, 10);
+ 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);
@@ -409,71 +433,38 @@ static const struct attribute_group adm1025_group_in4 = {
};
/* Return 0 if detection is successful, -ENODEV otherwise */
-static int adm1025_detect(struct i2c_client *client, int kind,
+static int adm1025_detect(struct i2c_client *client,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = client->adapter;
- const char *name = "";
- u8 config;
+ const char *name;
+ u8 man_id, chip_id;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- /*
- * 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(client, ADM1025_REG_CONFIG);
- if (kind < 0) { /* detection */
- if ((config & 0x80) != 0x00
- || (i2c_smbus_read_byte_data(client,
- ADM1025_REG_STATUS1) & 0xC0) != 0x00
- || (i2c_smbus_read_byte_data(client,
- ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
- dev_dbg(&adapter->dev,
- "ADM1025 detection failed at 0x%02x.\n",
- client->addr);
- 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(client, ADM1025_REG_MAN_ID);
- chip_id = i2c_smbus_read_byte_data(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 (client->addr != 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);
- return -ENODEV;
- }
- }
+ /* 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;
+
strlcpy(info->type, name, I2C_NAME_SIZE);
return 0;
@@ -486,11 +477,10 @@ static int adm1025_probe(struct i2c_client *client,
int err;
u8 config;
- data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto exit;
- }
+ 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);
@@ -499,14 +489,15 @@ static int adm1025_probe(struct i2c_client *client,
adm1025_init_client(client);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&client->dev.kobj, &adm1025_group)))
- goto exit_free;
+ 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)) {
- if ((err = sysfs_create_group(&client->dev.kobj,
- &adm1025_group_in4)))
+ err = sysfs_create_group(&client->dev.kobj, &adm1025_group_in4);
+ if (err)
goto exit_remove;
}
@@ -521,9 +512,6 @@ static int adm1025_probe(struct i2c_client *client,
exit_remove:
sysfs_remove_group(&client->dev.kobj, &adm1025_group);
sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
-exit_free:
- kfree(data);
-exit:
return err;
}
@@ -543,7 +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)
@@ -551,7 +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)
@@ -577,7 +565,6 @@ static int adm1025_remove(struct i2c_client *client)
sysfs_remove_group(&client->dev.kobj, &adm1025_group);
sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
- kfree(data);
return 0;
}
@@ -592,7 +579,7 @@ static struct adm1025_data *adm1025_update_device(struct device *dev)
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,
@@ -600,7 +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,
@@ -626,19 +613,8 @@ static struct adm1025_data *adm1025_update_device(struct device *dev)
return data;
}
-static int __init sensors_adm1025_init(void)
-{
- return i2c_add_driver(&adm1025_driver);
-}
-
-static void __exit sensors_adm1025_exit(void)
-{
- i2c_del_driver(&adm1025_driver);
-}
+module_i2c_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 20:01:27 +0000