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-rw-r--r--Documentation/hwmon/lm8510
-rw-r--r--drivers/hwmon/lm85.c77
2 files changed, 38 insertions, 49 deletions
diff --git a/Documentation/hwmon/lm85 b/Documentation/hwmon/lm85
index 6d41db7f17f8..400620741290 100644
--- a/Documentation/hwmon/lm85
+++ b/Documentation/hwmon/lm85
@@ -163,16 +163,6 @@ configured individually according to the following options.
* pwm#_auto_pwm_min - this specifies the PWM value for temp#_auto_temp_off
temperature. (PWM value from 0 to 255)
-* pwm#_auto_pwm_freq - select base frequency of PWM output. You can select
- in range of 10.0 to 94.0 Hz in .1 Hz units.
- (Values 100 to 940).
-
-The pwm#_auto_pwm_freq can be set to one of the following 8 values. Setting the
-frequency to a value not on this list, will result in the next higher frequency
-being selected. The actual device frequency may vary slightly from this
-specification as designed by the manufacturer. Consult the datasheet for more
-details. (PWM Frequency values: 100, 150, 230, 300, 380, 470, 620, 940)
-
* pwm#_auto_pwm_minctl - this flags selects for temp#_auto_temp_off temperature
the bahaviour of fans. Write 1 to let fans spinning at
pwm#_auto_pwm_min or write 0 to let them off.
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index 3594a02f281b..6b676df3547b 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -191,8 +191,8 @@ static int RANGE_TO_REG(int range)
#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
/* These are the PWM frequency encodings */
-static const int lm85_freq_map[] = { /* .1 Hz */
- 100, 150, 230, 300, 380, 470, 620, 940
+static const int lm85_freq_map[8] = { /* 1 Hz */
+ 10, 15, 23, 30, 38, 47, 62, 94
};
static int FREQ_TO_REG(int freq)
@@ -275,7 +275,6 @@ struct lm85_zone {
struct lm85_autofan {
u8 config; /* Register value */
- u8 freq; /* PWM frequency, encoded */
u8 min_pwm; /* Minimum PWM value, encoded */
u8 min_off; /* Min PWM or OFF below "limit", flag */
};
@@ -301,6 +300,7 @@ struct lm85_data {
u16 fan[4]; /* Register value */
u16 fan_min[4]; /* Register value */
u8 pwm[3]; /* Register value */
+ u8 pwm_freq[3]; /* Register encoding */
u8 temp_ext[3]; /* Decoded values */
u8 in_ext[8]; /* Decoded values */
u8 vid; /* Register value */
@@ -528,11 +528,38 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
return count;
}
+static ssize_t show_pwm_freq(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf, "%d\n", FREQ_FROM_REG(data->pwm_freq[nr]));
+}
+
+static ssize_t set_pwm_freq(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ mutex_lock(&data->update_lock);
+ data->pwm_freq[nr] = FREQ_TO_REG(val);
+ lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+ (data->zone[nr].range << 4)
+ | data->pwm_freq[nr]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
#define show_pwm_reg(offset) \
static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
show_pwm, set_pwm, offset - 1); \
static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
- show_pwm_enable, set_pwm_enable, offset - 1)
+ show_pwm_enable, set_pwm_enable, offset - 1); \
+static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
+ show_pwm_freq, set_pwm_freq, offset - 1)
show_pwm_reg(1);
show_pwm_reg(2);
@@ -761,31 +788,6 @@ static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
return count;
}
-static ssize_t show_pwm_auto_pwm_freq(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- int nr = to_sensor_dev_attr(attr)->index;
- struct lm85_data *data = lm85_update_device(dev);
- return sprintf(buf, "%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
-}
-
-static ssize_t set_pwm_auto_pwm_freq(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
-{
- int nr = to_sensor_dev_attr(attr)->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
-
- mutex_lock(&data->update_lock);
- data->autofan[nr].freq = FREQ_TO_REG(val);
- lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
- (data->zone[nr].range << 4)
- | data->autofan[nr].freq);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
#define pwm_auto(offset) \
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
@@ -795,10 +797,7 @@ static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
set_pwm_auto_pwm_min, offset - 1); \
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
- set_pwm_auto_pwm_minctl, offset - 1); \
-static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq, \
- S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq, \
- set_pwm_auto_pwm_freq, offset - 1);
+ set_pwm_auto_pwm_minctl, offset - 1)
pwm_auto(1);
pwm_auto(2);
@@ -867,7 +866,7 @@ static ssize_t set_temp_auto_temp_min(struct device *dev,
TEMP_FROM_REG(data->zone[nr].limit));
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
((data->zone[nr].range & 0x0f) << 4)
- | (data->autofan[nr].freq & 0x07));
+ | (data->pwm_freq[nr] & 0x07));
/* Update temp_auto_hyst and temp_auto_off */
data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
@@ -910,7 +909,7 @@ static ssize_t set_temp_auto_temp_max(struct device *dev,
val - min);
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
((data->zone[nr].range & 0x0f) << 4)
- | (data->autofan[nr].freq & 0x07));
+ | (data->pwm_freq[nr] & 0x07));
mutex_unlock(&data->update_lock);
return count;
}
@@ -984,6 +983,9 @@ static struct attribute *lm85_attributes[] = {
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm1_freq.dev_attr.attr,
+ &sensor_dev_attr_pwm2_freq.dev_attr.attr,
+ &sensor_dev_attr_pwm3_freq.dev_attr.attr,
&sensor_dev_attr_in0_input.dev_attr.attr,
&sensor_dev_attr_in1_input.dev_attr.attr,
@@ -1026,9 +1028,6 @@ static struct attribute *lm85_attributes[] = {
&sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr,
- &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr,
&sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
&sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
@@ -1458,7 +1457,7 @@ static struct lm85_data *lm85_update_device(struct device *dev)
data->autofan[i].config =
lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
- data->autofan[i].freq = val & 0x07;
+ data->pwm_freq[i] = val & 0x07;
data->zone[i].range = val >> 4;
data->autofan[i].min_pwm =
lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-03 23:58:59 +0000