summaryrefslogtreecommitdiffstats
path: root/drivers/hwmon/smsc47m192.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hwmon/smsc47m192.c')
-rw-r--r--drivers/hwmon/smsc47m192.c145
1 files changed, 87 insertions, 58 deletions
diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c
index 40b26673d87..4705a8bf11c 100644
--- a/drivers/hwmon/smsc47m192.c
+++ b/drivers/hwmon/smsc47m192.c
@@ -1,25 +1,25 @@
/*
- smsc47m192.c - Support for hardware monitoring block of
- SMSC LPC47M192 and compatible Super I/O chips
-
- Copyright (C) 2006 Hartmut Rick <linux@rick.claranet.de>
-
- Derived from lm78.c and other chip drivers.
-
- 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
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+ * smsc47m192.c - Support for hardware monitoring block of
+ * SMSC LPC47M192 and compatible Super I/O chips
+ *
+ * Copyright (C) 2006 Hartmut Rick <linux@rick.claranet.de>
+ *
+ * Derived from lm78.c and other chip drivers.
+ *
+ * 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -37,16 +37,16 @@
static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
/* SMSC47M192 registers */
-#define SMSC47M192_REG_IN(nr) ((nr)<6 ? (0x20 + (nr)) : \
+#define SMSC47M192_REG_IN(nr) ((nr) < 6 ? (0x20 + (nr)) : \
(0x50 + (nr) - 6))
-#define SMSC47M192_REG_IN_MAX(nr) ((nr)<6 ? (0x2b + (nr) * 2) : \
+#define SMSC47M192_REG_IN_MAX(nr) ((nr) < 6 ? (0x2b + (nr) * 2) : \
(0x54 + (((nr) - 6) * 2)))
-#define SMSC47M192_REG_IN_MIN(nr) ((nr)<6 ? (0x2c + (nr) * 2) : \
+#define SMSC47M192_REG_IN_MIN(nr) ((nr) < 6 ? (0x2c + (nr) * 2) : \
(0x55 + (((nr) - 6) * 2)))
static u8 SMSC47M192_REG_TEMP[3] = { 0x27, 0x26, 0x52 };
static u8 SMSC47M192_REG_TEMP_MAX[3] = { 0x39, 0x37, 0x58 };
static u8 SMSC47M192_REG_TEMP_MIN[3] = { 0x3A, 0x38, 0x59 };
-#define SMSC47M192_REG_TEMP_OFFSET(nr) ((nr)==2 ? 0x1e : 0x1f)
+#define SMSC47M192_REG_TEMP_OFFSET(nr) ((nr) == 2 ? 0x1e : 0x1f)
#define SMSC47M192_REG_ALARM1 0x41
#define SMSC47M192_REG_ALARM2 0x42
#define SMSC47M192_REG_VID 0x47
@@ -80,8 +80,10 @@ static inline u8 IN_TO_REG(unsigned long val, int n)
return SENSORS_LIMIT(SCALE(val, 192, nom_mv[n]), 0, 255);
}
-/* TEMP: 0.001 degC units (-128C to +127C)
- REG: 1C/bit, two's complement */
+/*
+ * TEMP: 0.001 degC units (-128C to +127C)
+ * REG: 1C/bit, two's complement
+ */
static inline s8 TEMP_TO_REG(int val)
{
return SENSORS_LIMIT(SCALE(val, 1, 1000), -128000, 127000);
@@ -170,7 +172,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct smsc47m192_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_min[nr] = IN_TO_REG(val, nr);
@@ -187,7 +194,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct smsc47m192_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_max[nr] = IN_TO_REG(val, nr);
@@ -249,7 +261,12 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct smsc47m192_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[nr] = TEMP_TO_REG(val);
@@ -266,7 +283,12 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct smsc47m192_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[nr] = TEMP_TO_REG(val);
@@ -293,22 +315,29 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute
struct i2c_client *client = to_i2c_client(dev);
struct smsc47m192_data *data = i2c_get_clientdata(client);
u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
- 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_offset[nr] = TEMP_TO_REG(val);
- if (nr>1)
+ if (nr > 1)
i2c_smbus_write_byte_data(client,
SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
else if (data->temp_offset[nr] != 0) {
- /* offset[0] and offset[1] share the same register,
- SFR bit 4 activates offset[0] */
+ /*
+ * offset[0] and offset[1] share the same register,
+ * SFR bit 4 activates offset[0]
+ */
i2c_smbus_write_byte_data(client, SMSC47M192_REG_SFR,
- (sfr & 0xef) | (nr==0 ? 0x10 : 0));
+ (sfr & 0xef) | (nr == 0 ? 0x10 : 0));
data->temp_offset[1-nr] = 0;
i2c_smbus_write_byte_data(client,
SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
- } else if ((sfr & 0x10) == (nr==0 ? 0x10 : 0))
+ } else if ((sfr & 0x10) == (nr == 0 ? 0x10 : 0))
i2c_smbus_write_byte_data(client,
SMSC47M192_REG_TEMP_OFFSET(nr), 0);
mutex_unlock(&data->update_lock);
@@ -349,7 +378,14 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct smsc47m192_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);
@@ -458,13 +494,13 @@ static void smsc47m192_init_client(struct i2c_client *client)
(sfr & 0xfd) | 0x02);
if (!(config & 0x01)) {
/* initialize alarm limits */
- for (i=0; i<8; i++) {
+ for (i = 0; i < 8; i++) {
i2c_smbus_write_byte_data(client,
SMSC47M192_REG_IN_MIN(i), 0);
i2c_smbus_write_byte_data(client,
SMSC47M192_REG_IN_MAX(i), 0xff);
}
- for (i=0; i<3; i++) {
+ for (i = 0; i < 3; i++) {
i2c_smbus_write_byte_data(client,
SMSC47M192_REG_TEMP_MIN[i], 0x80);
i2c_smbus_write_byte_data(client,
@@ -532,14 +568,16 @@ static int smsc47m192_probe(struct i2c_client *client,
smsc47m192_init_client(client);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group)))
+ err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group);
+ if (err)
goto exit_free;
/* Pin 110 is either in4 (+12V) or VID4 */
config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
if (!(config & 0x20)) {
- if ((err = sysfs_create_group(&client->dev.kobj,
- &smsc47m192_group_in4)))
+ err = sysfs_create_group(&client->dev.kobj,
+ &smsc47m192_group_in4);
+ if (err)
goto exit_remove_files;
}
@@ -606,8 +644,10 @@ static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
for (i = 1; i < 3; i++)
data->temp_offset[i] = i2c_smbus_read_byte_data(client,
SMSC47M192_REG_TEMP_OFFSET(i));
- /* first offset is temp_offset[0] if SFR bit 4 is set,
- temp_offset[1] otherwise */
+ /*
+ * first offset is temp_offset[0] if SFR bit 4 is set,
+ * temp_offset[1] otherwise
+ */
if (sfr & 0x10) {
data->temp_offset[0] = data->temp_offset[1];
data->temp_offset[1] = 0;
@@ -624,7 +664,7 @@ static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
data->alarms = i2c_smbus_read_byte_data(client,
SMSC47M192_REG_ALARM1) |
(i2c_smbus_read_byte_data(client,
- SMSC47M192_REG_ALARM2) << 8);
+ SMSC47M192_REG_ALARM2) << 8);
data->last_updated = jiffies;
data->valid = 1;
@@ -635,19 +675,8 @@ static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
return data;
}
-static int __init smsc47m192_init(void)
-{
- return i2c_add_driver(&smsc47m192_driver);
-}
-
-static void __exit smsc47m192_exit(void)
-{
- i2c_del_driver(&smsc47m192_driver);
-}
+module_i2c_driver(smsc47m192_driver);
MODULE_AUTHOR("Hartmut Rick <linux@rick.claranet.de>");
MODULE_DESCRIPTION("SMSC47M192 driver");
MODULE_LICENSE("GPL");
-
-module_init(smsc47m192_init);
-module_exit(smsc47m192_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-16 17:51:23 +0000