#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/err.h>
-#include <linux/mutex.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
struct class_device *class_dev;
enum chips type;
- struct mutex update_lock;
+ struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
struct gl518_data *data = i2c_get_clientdata(client); \
long val = simple_strtol(buf, NULL, 10); \
\
- mutex_lock(&data->update_lock); \
+ down(&data->update_lock); \
data->value = type##_TO_REG(val); \
gl518_write_value(client, reg, data->value); \
- mutex_unlock(&data->update_lock); \
+ up(&data->update_lock); \
return count; \
}
int regvalue; \
unsigned long val = simple_strtoul(buf, NULL, 10); \
\
- mutex_lock(&data->update_lock); \
+ down(&data->update_lock); \
regvalue = gl518_read_value(client, reg); \
data->value = type##_TO_REG(val); \
regvalue = (regvalue & ~mask) | (data->value << shift); \
gl518_write_value(client, reg, regvalue); \
- mutex_unlock(&data->update_lock); \
+ up(&data->update_lock); \
return count; \
}
int regvalue;
unsigned long val = simple_strtoul(buf, NULL, 10);
- mutex_lock(&data->update_lock);
+ down(&data->update_lock);
regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
data->fan_min[0] = FAN_TO_REG(val,
DIV_FROM_REG(data->fan_div[0]));
data->beep_mask &= data->alarm_mask;
gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
- mutex_unlock(&data->update_lock);
+ up(&data->update_lock);
return count;
}
int regvalue;
unsigned long val = simple_strtoul(buf, NULL, 10);
- mutex_lock(&data->update_lock);
+ down(&data->update_lock);
regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
data->fan_min[1] = FAN_TO_REG(val,
DIV_FROM_REG(data->fan_div[1]));
data->beep_mask &= data->alarm_mask;
gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
- mutex_unlock(&data->update_lock);
+ up(&data->update_lock);
return count;
}
strlcpy(new_client->name, "gl518sm", I2C_NAME_SIZE);
data->type = kind;
data->valid = 0;
- mutex_init(&data->update_lock);
+ init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
struct gl518_data *data = i2c_get_clientdata(client);
int val;
- mutex_lock(&data->update_lock);
+ down(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
data->valid = 1;
}
- mutex_unlock(&data->update_lock);
+ up(&data->update_lock);
return data;
}