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author | Steven Whitehouse <swhiteho@redhat.com> | 2006-03-31 15:34:58 -0500 |
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committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-03-31 15:34:58 -0500 |
commit | 86579dd06deecfa6ac88d5e84e4d63c397cd6f6d (patch) | |
tree | b4475d3ccde53015ad84a06e4e55e64591171b75 /drivers/hwmon/smsc47m1.c | |
parent | 7ea9ea832212c4a755650f7c7cc1ff0b63292a41 (diff) | |
parent | a0f067802576d4eb4c65d40b8ee7d6ea3c81dd61 (diff) | |
download | linux-stable-86579dd06deecfa6ac88d5e84e4d63c397cd6f6d.tar.gz linux-stable-86579dd06deecfa6ac88d5e84e4d63c397cd6f6d.tar.bz2 linux-stable-86579dd06deecfa6ac88d5e84e4d63c397cd6f6d.zip |
Merge branch 'master'
Diffstat (limited to 'drivers/hwmon/smsc47m1.c')
-rw-r--r-- | drivers/hwmon/smsc47m1.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index d1e3ec0fe4df..7732aec54594 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -34,6 +34,7 @@ #include <linux/hwmon.h> #include <linux/err.h> #include <linux/init.h> +#include <linux/mutex.h> #include <asm/io.h> /* Address is autodetected, there is no default value */ @@ -102,9 +103,9 @@ superio_exit(void) struct smsc47m1_data { struct i2c_client client; struct class_device *class_dev; - struct semaphore lock; + struct mutex lock; - struct semaphore update_lock; + struct mutex update_lock; unsigned long last_updated; /* In jiffies */ u8 fan[2]; /* Register value */ @@ -188,18 +189,18 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, struct smsc47m1_data *data = i2c_get_clientdata(client); long rpmdiv, val = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); rpmdiv = val * DIV_FROM_REG(data->fan_div[nr]); if (983040 > 192 * rpmdiv || 2 * rpmdiv > 983040) { - up(&data->update_lock); + mutex_unlock(&data->update_lock); return -EINVAL; } data->fan_preload[nr] = 192 - ((983040 + rpmdiv / 2) / rpmdiv); smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr), data->fan_preload[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -220,14 +221,14 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, if (new_div == old_div) /* No change */ return count; - down(&data->update_lock); + mutex_lock(&data->update_lock); switch (new_div) { case 1: data->fan_div[nr] = 0; break; case 2: data->fan_div[nr] = 1; break; case 4: data->fan_div[nr] = 2; break; case 8: data->fan_div[nr] = 3; break; default: - up(&data->update_lock); + mutex_unlock(&data->update_lock); return -EINVAL; } @@ -241,7 +242,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, data->fan_preload[nr] = SENSORS_LIMIT(tmp, 0, 191); smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr), data->fan_preload[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -257,12 +258,12 @@ static ssize_t set_pwm(struct device *dev, const char *buf, if (val < 0 || val > 255) return -EINVAL; - down(&data->update_lock); + mutex_lock(&data->update_lock); data->pwm[nr] &= 0x81; /* Preserve additional bits */ data->pwm[nr] |= PWM_TO_REG(val); smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr), data->pwm[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -278,12 +279,12 @@ static ssize_t set_pwm_en(struct device *dev, const char *buf, if (val != 0 && val != 1) return -EINVAL; - down(&data->update_lock); + mutex_lock(&data->update_lock); data->pwm[nr] &= 0xFE; /* preserve the other bits */ data->pwm[nr] |= !val; smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr), data->pwm[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -408,13 +409,13 @@ static int smsc47m1_detect(struct i2c_adapter *adapter) new_client = &data->client; i2c_set_clientdata(new_client, data); new_client->addr = address; - init_MUTEX(&data->lock); + mutex_init(&data->lock); new_client->adapter = adapter; new_client->driver = &smsc47m1_driver; new_client->flags = 0; strlcpy(new_client->name, "smsc47m1", I2C_NAME_SIZE); - init_MUTEX(&data->update_lock); + mutex_init(&data->update_lock); /* If no function is properly configured, there's no point in actually registering the chip. */ @@ -512,17 +513,17 @@ static int smsc47m1_read_value(struct i2c_client *client, u8 reg) { int res; - down(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); + mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); res = inb_p(client->addr + reg); - up(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); + mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); return res; } static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value) { - down(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); + mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); outb_p(value, client->addr + reg); - up(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); + mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock); } static struct smsc47m1_data *smsc47m1_update_device(struct device *dev, @@ -531,7 +532,7 @@ static struct smsc47m1_data *smsc47m1_update_device(struct device *dev, struct i2c_client *client = to_i2c_client(dev); struct smsc47m1_data *data = i2c_get_clientdata(client); - down(&data->update_lock); + mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) { int i; @@ -558,7 +559,7 @@ static struct smsc47m1_data *smsc47m1_update_device(struct device *dev, data->last_updated = jiffies; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return data; } |