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authorLinus Torvalds <torvalds@linux-foundation.org>2010-09-17 10:25:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-09-17 10:25:47 -0700
commit509344b8b4d365b7ff3bce97198d83a57b7c3f31 (patch)
treeb9362ca16a3670a67dcc05fdaf0162aa2e470c5f
parent80214df8db6d0ba8172f70122705ef29077fd918 (diff)
parentbc482bf0ce918b39a1fa60b9341f1add9318d833 (diff)
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Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (lm95241) Replace rate sysfs attribute with update_interval hwmon: (adm1031) Replace update_rate sysfs attribute with update_interval hwmon: (w83627ehf) Use proper exit sequence hwmon: (emc1403) Remove unnecessary hwmon_device_unregister hwmon: (f75375s) Do not overwrite values read from registers hwmon: (f75375s) Shift control mode to the correct bit position hwmon: New subsystem maintainers hwmon: (lis3lv02d) Prevent NULL pointer dereference
-rw-r--r--Documentation/hwmon/sysfs-interface7
-rw-r--r--MAINTAINERS5
-rw-r--r--drivers/hwmon/adm1031.c43
-rw-r--r--drivers/hwmon/emc1403.c1
-rw-r--r--drivers/hwmon/f75375s.c6
-rw-r--r--drivers/hwmon/lis3lv02d_i2c.c4
-rw-r--r--drivers/hwmon/lis3lv02d_spi.c4
-rw-r--r--drivers/hwmon/lm95241.c21
-rw-r--r--drivers/hwmon/w83627ehf.c1
9 files changed, 50 insertions, 42 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index ff45d1f837c8..48ceabedf55d 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -91,12 +91,11 @@ name The chip name.
I2C devices get this attribute created automatically.
RO
-update_rate The rate at which the chip will update readings.
+update_interval The interval at which the chip will update readings.
Unit: millisecond
RW
- Some devices have a variable update rate. This attribute
- can be used to change the update rate to the desired
- frequency.
+ Some devices have a variable update rate or interval.
+ This attribute can be used to change it to the desired value.
************
diff --git a/MAINTAINERS b/MAINTAINERS
index e7c528ff1013..8540dea232af 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2657,9 +2657,12 @@ S: Maintained
F: drivers/media/video/gspca/
HARDWARE MONITORING
+M: Jean Delvare <khali@linux-fr.org>
+M: Guenter Roeck <guenter.roeck@ericsson.com>
L: lm-sensors@lm-sensors.org
W: http://www.lm-sensors.org/
-S: Orphan
+T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-hwmon/
+S: Maintained
F: Documentation/hwmon/
F: drivers/hwmon/
F: include/linux/hwmon*.h
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
index 15c1a9616af3..0683e6be662c 100644
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -79,7 +79,7 @@ struct adm1031_data {
int chip_type;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
- unsigned int update_rate; /* In milliseconds */
+ unsigned int update_interval; /* In milliseconds */
/* The chan_select_table contains the possible configurations for
* auto fan control.
*/
@@ -743,23 +743,23 @@ static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12);
static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14);
-/* Update Rate */
-static const unsigned int update_rates[] = {
+/* Update Interval */
+static const unsigned int update_intervals[] = {
16000, 8000, 4000, 2000, 1000, 500, 250, 125,
};
-static ssize_t show_update_rate(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t show_update_interval(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
- return sprintf(buf, "%u\n", data->update_rate);
+ return sprintf(buf, "%u\n", data->update_interval);
}
-static ssize_t set_update_rate(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t set_update_interval(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
@@ -771,12 +771,15 @@ static ssize_t set_update_rate(struct device *dev,
if (err)
return err;
- /* find the nearest update rate from the table */
- for (i = 0; i < ARRAY_SIZE(update_rates) - 1; i++) {
- if (val >= update_rates[i])
+ /*
+ * Find the nearest update interval from the table.
+ * Use it to determine the matching update rate.
+ */
+ for (i = 0; i < ARRAY_SIZE(update_intervals) - 1; i++) {
+ if (val >= update_intervals[i])
break;
}
- /* if not found, we point to the last entry (lowest update rate) */
+ /* if not found, we point to the last entry (lowest update interval) */
/* set the new update rate while preserving other settings */
reg = adm1031_read_value(client, ADM1031_REG_FAN_FILTER);
@@ -785,14 +788,14 @@ static ssize_t set_update_rate(struct device *dev,
adm1031_write_value(client, ADM1031_REG_FAN_FILTER, reg);
mutex_lock(&data->update_lock);
- data->update_rate = update_rates[i];
+ data->update_interval = update_intervals[i];
mutex_unlock(&data->update_lock);
return count;
}
-static DEVICE_ATTR(update_rate, S_IRUGO | S_IWUSR, show_update_rate,
- set_update_rate);
+static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval,
+ set_update_interval);
static struct attribute *adm1031_attributes[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
@@ -830,7 +833,7 @@ static struct attribute *adm1031_attributes[] = {
&sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr,
- &dev_attr_update_rate.attr,
+ &dev_attr_update_interval.attr,
&dev_attr_alarms.attr,
NULL
@@ -981,7 +984,8 @@ static void adm1031_init_client(struct i2c_client *client)
mask = ADM1031_UPDATE_RATE_MASK;
read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER);
i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT;
- data->update_rate = update_rates[i];
+ /* Save it as update interval */
+ data->update_interval = update_intervals[i];
}
static struct adm1031_data *adm1031_update_device(struct device *dev)
@@ -993,7 +997,8 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
mutex_lock(&data->update_lock);
- next_update = data->last_updated + msecs_to_jiffies(data->update_rate);
+ next_update = data->last_updated
+ + msecs_to_jiffies(data->update_interval);
if (time_after(jiffies, next_update) || !data->valid) {
dev_dbg(&client->dev, "Starting adm1031 update\n");
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index 5b58b20dead1..8dee3f38fdfb 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -308,7 +308,6 @@ static int emc1403_probe(struct i2c_client *client,
res = sysfs_create_group(&client->dev.kobj, &m_thermal_gr);
if (res) {
dev_warn(&client->dev, "create group failed\n");
- hwmon_device_unregister(data->hwmon_dev);
goto thermal_error1;
}
data->hwmon_dev = hwmon_device_register(&client->dev);
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index 0f58ecc5334d..9638d58f99fd 100644
--- a/drivers/hwmon/f75375s.c
+++ b/drivers/hwmon/f75375s.c
@@ -79,7 +79,7 @@ enum chips { f75373, f75375 };
#define F75375_REG_PWM2_DROP_DUTY 0x6C
#define FAN_CTRL_LINEAR(nr) (4 + nr)
-#define FAN_CTRL_MODE(nr) (5 + ((nr) * 2))
+#define FAN_CTRL_MODE(nr) (4 + ((nr) * 2))
/*
* Data structures and manipulation thereof
@@ -298,7 +298,7 @@ static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
return -EINVAL;
fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
- fanmode = ~(3 << FAN_CTRL_MODE(nr));
+ fanmode &= ~(3 << FAN_CTRL_MODE(nr));
switch (val) {
case 0: /* Full speed */
@@ -350,7 +350,7 @@ static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
conf = f75375_read8(client, F75375_REG_CONFIG1);
- conf = ~(1 << FAN_CTRL_LINEAR(nr));
+ conf &= ~(1 << FAN_CTRL_LINEAR(nr));
if (val == 0)
conf |= (1 << FAN_CTRL_LINEAR(nr)) ;
diff --git a/drivers/hwmon/lis3lv02d_i2c.c b/drivers/hwmon/lis3lv02d_i2c.c
index dc1f5402c1d7..8e5933b72d19 100644
--- a/drivers/hwmon/lis3lv02d_i2c.c
+++ b/drivers/hwmon/lis3lv02d_i2c.c
@@ -121,7 +121,7 @@ static int lis3lv02d_i2c_suspend(struct i2c_client *client, pm_message_t mesg)
{
struct lis3lv02d *lis3 = i2c_get_clientdata(client);
- if (!lis3->pdata->wakeup_flags)
+ if (!lis3->pdata || !lis3->pdata->wakeup_flags)
lis3lv02d_poweroff(lis3);
return 0;
}
@@ -130,7 +130,7 @@ static int lis3lv02d_i2c_resume(struct i2c_client *client)
{
struct lis3lv02d *lis3 = i2c_get_clientdata(client);
- if (!lis3->pdata->wakeup_flags)
+ if (!lis3->pdata || !lis3->pdata->wakeup_flags)
lis3lv02d_poweron(lis3);
return 0;
}
diff --git a/drivers/hwmon/lis3lv02d_spi.c b/drivers/hwmon/lis3lv02d_spi.c
index 82b16808a274..b9be5e3a22b3 100644
--- a/drivers/hwmon/lis3lv02d_spi.c
+++ b/drivers/hwmon/lis3lv02d_spi.c
@@ -92,7 +92,7 @@ static int lis3lv02d_spi_suspend(struct spi_device *spi, pm_message_t mesg)
{
struct lis3lv02d *lis3 = spi_get_drvdata(spi);
- if (!lis3->pdata->wakeup_flags)
+ if (!lis3->pdata || !lis3->pdata->wakeup_flags)
lis3lv02d_poweroff(&lis3_dev);
return 0;
@@ -102,7 +102,7 @@ static int lis3lv02d_spi_resume(struct spi_device *spi)
{
struct lis3lv02d *lis3 = spi_get_drvdata(spi);
- if (!lis3->pdata->wakeup_flags)
+ if (!lis3->pdata || !lis3->pdata->wakeup_flags)
lis3lv02d_poweron(lis3);
return 0;
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
index 94741d42112d..464340f25496 100644
--- a/drivers/hwmon/lm95241.c
+++ b/drivers/hwmon/lm95241.c
@@ -91,7 +91,7 @@ static struct lm95241_data *lm95241_update_device(struct device *dev);
struct lm95241_data {
struct device *hwmon_dev;
struct mutex update_lock;
- unsigned long last_updated, rate; /* in jiffies */
+ unsigned long last_updated, interval; /* in jiffies */
char valid; /* zero until following fields are valid */
/* registers values */
u8 local_h, local_l; /* local */
@@ -114,23 +114,23 @@ show_temp(local);
show_temp(remote1);
show_temp(remote2);
-static ssize_t show_rate(struct device *dev, struct device_attribute *attr,
+static ssize_t show_interval(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct lm95241_data *data = lm95241_update_device(dev);
- snprintf(buf, PAGE_SIZE - 1, "%lu\n", 1000 * data->rate / HZ);
+ snprintf(buf, PAGE_SIZE - 1, "%lu\n", 1000 * data->interval / HZ);
return strlen(buf);
}
-static ssize_t set_rate(struct device *dev, struct device_attribute *attr,
+static ssize_t set_interval(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm95241_data *data = i2c_get_clientdata(client);
- strict_strtol(buf, 10, &data->rate);
- data->rate = data->rate * HZ / 1000;
+ strict_strtol(buf, 10, &data->interval);
+ data->interval = data->interval * HZ / 1000;
return count;
}
@@ -286,7 +286,8 @@ static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_min1, set_min1);
static DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_min2, set_min2);
static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_max1, set_max1);
static DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_max2, set_max2);
-static DEVICE_ATTR(rate, S_IWUSR | S_IRUGO, show_rate, set_rate);
+static DEVICE_ATTR(update_interval, S_IWUSR | S_IRUGO, show_interval,
+ set_interval);
static struct attribute *lm95241_attributes[] = {
&dev_attr_temp1_input.attr,
@@ -298,7 +299,7 @@ static struct attribute *lm95241_attributes[] = {
&dev_attr_temp3_min.attr,
&dev_attr_temp2_max.attr,
&dev_attr_temp3_max.attr,
- &dev_attr_rate.attr,
+ &dev_attr_update_interval.attr,
NULL
};
@@ -376,7 +377,7 @@ static void lm95241_init_client(struct i2c_client *client)
{
struct lm95241_data *data = i2c_get_clientdata(client);
- data->rate = HZ; /* 1 sec default */
+ data->interval = HZ; /* 1 sec default */
data->valid = 0;
data->config = CFG_CR0076;
data->model = 0;
@@ -410,7 +411,7 @@ static struct lm95241_data *lm95241_update_device(struct device *dev)
mutex_lock(&data->update_lock);
- if (time_after(jiffies, data->last_updated + data->rate) ||
+ if (time_after(jiffies, data->last_updated + data->interval) ||
!data->valid) {
dev_dbg(&client->dev, "Updating lm95241 data.\n");
data->local_h =
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index e96e69dd36fb..072c58008a63 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -127,6 +127,7 @@ superio_enter(int ioreg)
static inline void
superio_exit(int ioreg)
{
+ outb(0xaa, ioreg);
outb(0x02, ioreg);
outb(0x02, ioreg + 1);
}