diff options
Diffstat (limited to 'drivers/hwmon/sis5595.c')
| -rw-r--r-- | drivers/hwmon/sis5595.c | 51 |
1 files changed, 26 insertions, 25 deletions
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index 8be5189d9bd..6f3fda73f70 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -60,6 +60,7 @@ #include <linux/err.h> #include <linux/init.h> #include <linux/jiffies.h> +#include <linux/mutex.h> #include <asm/io.h> @@ -167,9 +168,9 @@ static inline u8 DIV_TO_REG(int val) struct sis5595_data { struct i2c_client client; struct class_device *class_dev; - struct semaphore lock; + struct mutex lock; - struct semaphore update_lock; + struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ char maxins; /* == 3 if temp enabled, otherwise == 4 */ @@ -192,8 +193,8 @@ static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ static int sis5595_detect(struct i2c_adapter *adapter); static int sis5595_detach_client(struct i2c_client *client); -static int sis5595_read_value(struct i2c_client *client, u8 register); -static int sis5595_write_value(struct i2c_client *client, u8 register, u8 value); +static int sis5595_read_value(struct i2c_client *client, u8 reg); +static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value); static struct sis5595_data *sis5595_update_device(struct device *dev); static void sis5595_init_client(struct i2c_client *client); @@ -231,10 +232,10 @@ static ssize_t set_in_min(struct device *dev, const char *buf, struct sis5595_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] = IN_TO_REG(val); sis5595_write_value(client, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -245,10 +246,10 @@ static ssize_t set_in_max(struct device *dev, const char *buf, struct sis5595_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] = IN_TO_REG(val); sis5595_write_value(client, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -310,10 +311,10 @@ static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, struct sis5595_data *data = i2c_get_clientdata(client); long val = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->temp_over = TEMP_TO_REG(val); sis5595_write_value(client, SIS5595_REG_TEMP_OVER, data->temp_over); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -329,10 +330,10 @@ static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, struct sis5595_data *data = i2c_get_clientdata(client); long val = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->temp_hyst = TEMP_TO_REG(val); sis5595_write_value(client, SIS5595_REG_TEMP_HYST, data->temp_hyst); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -364,10 +365,10 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, struct sis5595_data *data = i2c_get_clientdata(client); unsigned long 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])); sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -390,7 +391,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, unsigned long val = simple_strtoul(buf, NULL, 10); int reg; - down(&data->update_lock); + mutex_lock(&data->update_lock); min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); reg = sis5595_read_value(client, SIS5595_REG_FANDIV); @@ -403,7 +404,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, 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; } @@ -419,7 +420,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -527,7 +528,7 @@ static int sis5595_detect(struct i2c_adapter *adapter) new_client = &data->client; new_client->addr = address; - init_MUTEX(&data->lock); + mutex_init(&data->lock); i2c_set_clientdata(new_client, data); new_client->adapter = adapter; new_client->driver = &sis5595_driver; @@ -548,7 +549,7 @@ static int sis5595_detect(struct i2c_adapter *adapter) strlcpy(new_client->name, "sis5595", I2C_NAME_SIZE); data->valid = 0; - init_MUTEX(&data->update_lock); + mutex_init(&data->update_lock); /* Tell the I2C layer a new client has arrived */ if ((err = i2c_attach_client(new_client))) @@ -635,20 +636,20 @@ static int sis5595_read_value(struct i2c_client *client, u8 reg) int res; struct sis5595_data *data = i2c_get_clientdata(client); - down(&data->lock); + mutex_lock(&data->lock); outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET); res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET); - up(&data->lock); + mutex_unlock(&data->lock); return res; } static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value) { struct sis5595_data *data = i2c_get_clientdata(client); - down(&data->lock); + mutex_lock(&data->lock); outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET); outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET); - up(&data->lock); + mutex_unlock(&data->lock); return 0; } @@ -667,7 +668,7 @@ static struct sis5595_data *sis5595_update_device(struct device *dev) struct sis5595_data *data = i2c_get_clientdata(client); int i; - down(&data->update_lock); + mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || !data->valid) { @@ -707,7 +708,7 @@ static struct sis5595_data *sis5595_update_device(struct device *dev) data->valid = 1; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return data; } |