summaryrefslogtreecommitdiff
path: root/drivers/hwmon/ds1621.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 23:51:32 (GMT)
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 23:51:32 (GMT)
commitb6585dedac232ca79fe978d97a95fdaa6da24f66 (patch)
tree4d2d78300bb9bcfb40cb35450f78dd3af82c78d3 /drivers/hwmon/ds1621.c
parenta3ea9b584ed2acdeae817f0dc91a5880e0828a05 (diff)
parentded2b66615613093eeb83b81499bc270de8fc499 (diff)
downloadlinux-fsl-qoriq-b6585dedac232ca79fe978d97a95fdaa6da24f66.tar.xz
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6: (36 commits) [PATCH] hwmon: add required idr locking [PATCH] I2C: hwmon: Rename register parameters [PATCH] I2C: Drop unneeded i2c-dev.h includes [PATCH] I2C: i2c-ixp4xx: Add hwmon class [PATCH] I2C: i2c-piix4: Add Broadcom HT-1000 support [PATCH] I2C: i2c-amd756-s4882: Improve static mutex initialization [PATCH] I2C: i2c-ali1535: Drop redundant mutex [PATCH] i2c: Cleanup isp1301_omap [PATCH] i2c: Fix i2c-ite name initialization [PATCH] i2c: Drop the i2c-frodo bus driver [PATCH] i2c: Optimize core_lists mutex usage [PATCH] w83781d: Don't reset the chip by default [PATCH] w83781d: Document the alarm and beep bits [PATCH] w83627ehf: Refactor the sysfs interface [PATCH] hwmon: Support the Pentium M VID code [PATCH] hwmon: Add support for the Winbond W83687THF [PATCH] hwmon: f71805f semaphore to mutex conversions [PATCH] hwmon: Semaphore to mutex conversions [PATCH] i2c: Semaphore to mutex conversions, part 3 [PATCH] i2c: Semaphore to mutex conversions, part 2 ...
Diffstat (limited to 'drivers/hwmon/ds1621.c')
-rw-r--r--drivers/hwmon/ds1621.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 203f9c7..478eb4b 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -28,6 +28,7 @@
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/err.h>
+#include <linux/mutex.h>
#include "lm75.h"
/* Addresses to scan */
@@ -72,7 +73,7 @@ MODULE_PARM_DESC(polarity, "Output's polarity: 0 = active high, 1 = active low")
struct ds1621_data {
struct i2c_client client;
struct class_device *class_dev;
- struct semaphore update_lock;
+ struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
@@ -156,10 +157,10 @@ static ssize_t set_temp_##suffix(struct device *dev, struct device_attribute *at
struct ds1621_data *data = ds1621_update_client(dev); \
u16 val = LM75_TEMP_TO_REG(simple_strtoul(buf, NULL, 10)); \
\
- down(&data->update_lock); \
+ mutex_lock(&data->update_lock); \
data->value = val; \
ds1621_write_value(client, reg, data->value); \
- up(&data->update_lock); \
+ mutex_unlock(&data->update_lock); \
return count; \
}
@@ -242,7 +243,7 @@ static int ds1621_detect(struct i2c_adapter *adapter, int address,
/* Fill in remaining client fields and put it into the global list */
strlcpy(new_client->name, "ds1621", 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)))
@@ -297,7 +298,7 @@ static struct ds1621_data *ds1621_update_client(struct device *dev)
struct ds1621_data *data = i2c_get_clientdata(client);
u8 new_conf;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
@@ -327,7 +328,7 @@ static struct ds1621_data *ds1621_update_client(struct device *dev)
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}