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hwmon: (w83795) Rework beep_enable implementation 

Handle beep_enable just like all other beep bits. It doesn't need
anything special, so let's avoid redundant code. This also saves a
duplicate register read at initialization time.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Jean Delvare 2010-10-28 20:31:47 +02:00 committed by Jean Delvare
parent 54891a3c13
commit 02728ffef9
1 changed files with 2 additions and 38 deletions
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40
drivers/hwmon/w83795.c
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@ -398,7 +398,6 @@ struct w83795_data {
u8 alarms[6]; /* Register value */
u8 beeps[6]; /* Register value */
u8 beep_enable;
char valid;
};
@ -616,39 +615,6 @@ store_beep(struct device *dev, struct device_attribute *attr,
return count;
}
static ssize_t
show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83795_data *data = i2c_get_clientdata(client);
return sprintf(buf, "%u\n", data->beep_enable);
}
static ssize_t
store_beep_enable(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83795_data *data = i2c_get_clientdata(client);
unsigned long val;
u8 tmp;
if (strict_strtoul(buf, 10, &val) < 0)
return -EINVAL;
if (val != 0 && val != 1)
return -EINVAL;
mutex_lock(&data->update_lock);
data->beep_enable = val;
tmp = w83795_read(client, W83795_REG_BEEP(5));
tmp &= 0x7f;
tmp |= val << 7;
w83795_write(client, W83795_REG_BEEP(5), tmp);
mutex_unlock(&data->update_lock);
return count;
}
/* Write any value to clear chassis alarm */
static ssize_t
store_chassis_clear(struct device *dev,
@ -1689,8 +1655,8 @@ static const struct sensor_device_attribute_2 w83795_pwm[][7] = {
static const struct sensor_device_attribute_2 sda_single_files[] = {
SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
store_chassis_clear, ALARM_STATUS, 46),
SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
store_beep_enable, NOT_USED, NOT_USED),
SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_alarm_beep,
store_beep, BEEP_ENABLE, 47),
SENSOR_ATTR_2(speed_cruise_tolerance, S_IWUSR | S_IRUGO, show_fanin,
store_fanin, FANIN_TOL, NOT_USED),
SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup,
@ -2136,8 +2102,6 @@ static int w83795_probe(struct i2c_client *client,
data->alarms[i] = w83795_read(client, W83795_REG_ALARM(i));
data->beeps[i] = w83795_read(client, W83795_REG_BEEP(i));
}
data->beep_enable =
(w83795_read(client, W83795_REG_BEEP(5)) >> 7) & 0x01;
err = w83795_handle_files(dev, device_create_file);
if (err)