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path: root/drivers/hwmon/vt8231.c
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Diffstat (limited to 'drivers/hwmon/vt8231.c')
-rw-r--r--drivers/hwmon/vt8231.c51
1 files changed, 26 insertions, 25 deletions
diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c
index 271e9cb9532c..686f3deb3093 100644
--- a/drivers/hwmon/vt8231.c
+++ b/drivers/hwmon/vt8231.c
@@ -35,6 +35,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/hwmon-vid.h>
#include <linux/err.h>
+#include <linux/mutex.h>
#include <asm/io.h>
static int force_addr;
@@ -148,7 +149,7 @@ static inline u8 FAN_TO_REG(long rpm, int div)
struct vt8231_data {
struct i2c_client client;
- struct semaphore update_lock;
+ struct mutex update_lock;
struct class_device *class_dev;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
@@ -223,10 +224,10 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_min[nr] = SENSORS_LIMIT(((val * 958) / 10000) + 3, 0, 255);
vt8231_write_value(client, regvoltmin[nr], data->in_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -239,10 +240,10 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_max[nr] = SENSORS_LIMIT(((val * 958) / 10000) + 3, 0, 255);
vt8231_write_value(client, regvoltmax[nr], data->in_max[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -281,11 +282,11 @@ static ssize_t set_in5_min(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_min[5] = SENSORS_LIMIT(((val * 958 * 34) / (10000 * 54)) + 3,
0, 255);
vt8231_write_value(client, regvoltmin[5], data->in_min[5]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -296,11 +297,11 @@ static ssize_t set_in5_max(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_max[5] = SENSORS_LIMIT(((val * 958 * 34) / (10000 * 54)) + 3,
0, 255);
vt8231_write_value(client, regvoltmax[5], data->in_max[5]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -351,10 +352,10 @@ static ssize_t set_temp0_max(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
int val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_max[0] = SENSORS_LIMIT((val + 500) / 1000, 0, 255);
vt8231_write_value(client, regtempmax[0], data->temp_max[0]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t set_temp0_min(struct device *dev, struct device_attribute *attr,
@@ -364,10 +365,10 @@ static ssize_t set_temp0_min(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
int val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_min[0] = SENSORS_LIMIT((val + 500) / 1000, 0, 255);
vt8231_write_value(client, regtempmin[0], data->temp_min[0]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -407,10 +408,10 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
int val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_max[nr] = SENSORS_LIMIT(TEMP_MAXMIN_TO_REG(val), 0, 255);
vt8231_write_value(client, regtempmax[nr], data->temp_max[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
@@ -422,10 +423,10 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
int val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_min[nr] = SENSORS_LIMIT(TEMP_MAXMIN_TO_REG(val), 0, 255);
vt8231_write_value(client, regtempmin[nr], data->temp_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -520,10 +521,10 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
struct vt8231_data *data = i2c_get_clientdata(client);
int val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
vt8231_write_value(client, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -539,7 +540,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
long min = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
switch (val) {
case 1: data->fan_div[nr] = 0; break;
case 2: data->fan_div[nr] = 1; break;
@@ -548,7 +549,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
default:
dev_err(&client->dev, "fan_div value %ld not supported."
"Choose one of 1, 2, 4 or 8!\n", val);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return -EINVAL;
}
@@ -558,7 +559,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4);
vt8231_write_value(client, VT8231_REG_FANDIV, old);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -660,7 +661,7 @@ int vt8231_detect(struct i2c_adapter *adapter)
/* Fill in the remaining client fields and put into the global list */
strlcpy(client->name, "vt8231", I2C_NAME_SIZE);
- init_MUTEX(&data->update_lock);
+ mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(client)))
@@ -745,7 +746,7 @@ static struct vt8231_data *vt8231_update_device(struct device *dev)
int i;
u16 low;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
@@ -804,7 +805,7 @@ static struct vt8231_data *vt8231_update_device(struct device *dev)
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-04 04:37:32 +0000