hwmon: (it87) Use is_visible for pwm attributes
Simplify code and reduce object size by about 250 bytes on x86_64. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
parent
9a70ee814d
commit
5c3912616d
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@ -498,6 +498,7 @@ struct it87_data {
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* is no longer needed, but it is still done to keep the driver
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* simple.
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*/
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u8 has_pwm; /* Bitfield, pwm control enabled */
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u8 pwm_ctrl[6]; /* Register value */
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u8 pwm_duty[6]; /* Manual PWM value set by user */
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u8 pwm_temp_map[6]; /* PWM to temp. chan. mapping (bits 1-0) */
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@ -1340,15 +1341,6 @@ static ssize_t set_pwm_temp_map(struct device *dev,
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long val;
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u8 reg;
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/*
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* This check can go away if we ever support automatic fan speed
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* control on newer chips.
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*/
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if (!has_old_autopwm(data)) {
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dev_notice(dev, "Mapping change disabled for safety reasons\n");
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return -EINVAL;
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}
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if (kstrtol(buf, 10, &val) < 0)
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return -EINVAL;
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@ -1482,7 +1474,7 @@ static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
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static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
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static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq,
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set_pwm_freq, 0);
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static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
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static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO,
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show_pwm_temp_map, set_pwm_temp_map, 0);
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static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
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show_auto_pwm, set_auto_pwm, 0, 0);
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@ -1507,7 +1499,7 @@ static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
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show_pwm_enable, set_pwm_enable, 1);
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static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1);
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static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, set_pwm_freq, 1);
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static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
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static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO,
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show_pwm_temp_map, set_pwm_temp_map, 1);
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static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
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show_auto_pwm, set_auto_pwm, 1, 0);
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@ -1532,7 +1524,7 @@ static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
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show_pwm_enable, set_pwm_enable, 2);
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static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2);
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static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL, 2);
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static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
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static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO,
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show_pwm_temp_map, set_pwm_temp_map, 2);
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static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
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show_auto_pwm, set_auto_pwm, 2, 0);
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@ -1557,21 +1549,21 @@ static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR,
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show_pwm_enable, set_pwm_enable, 3);
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static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 3);
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static SENSOR_DEVICE_ATTR(pwm4_freq, S_IRUGO, show_pwm_freq, NULL, 3);
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static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IRUGO | S_IWUSR,
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static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IRUGO,
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show_pwm_temp_map, set_pwm_temp_map, 3);
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static SENSOR_DEVICE_ATTR(pwm5_enable, S_IRUGO | S_IWUSR,
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show_pwm_enable, set_pwm_enable, 4);
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static SENSOR_DEVICE_ATTR(pwm5, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 4);
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static SENSOR_DEVICE_ATTR(pwm5_freq, S_IRUGO, show_pwm_freq, NULL, 4);
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static SENSOR_DEVICE_ATTR(pwm5_auto_channels_temp, S_IRUGO | S_IWUSR,
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static SENSOR_DEVICE_ATTR(pwm5_auto_channels_temp, S_IRUGO,
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show_pwm_temp_map, set_pwm_temp_map, 4);
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static SENSOR_DEVICE_ATTR(pwm6_enable, S_IRUGO | S_IWUSR,
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show_pwm_enable, set_pwm_enable, 5);
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static SENSOR_DEVICE_ATTR(pwm6, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 5);
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static SENSOR_DEVICE_ATTR(pwm6_freq, S_IRUGO, show_pwm_freq, NULL, 5);
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static SENSOR_DEVICE_ATTR(pwm6_auto_channels_temp, S_IRUGO | S_IWUSR,
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static SENSOR_DEVICE_ATTR(pwm6_auto_channels_temp, S_IRUGO,
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show_pwm_temp_map, set_pwm_temp_map, 5);
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/* Alarms */
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@ -1969,67 +1961,81 @@ static const struct attribute_group it87_group_fan = {
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.is_visible = it87_fan_is_visible,
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};
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static struct attribute *it87_attributes_pwm[6][4+1] = { {
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&sensor_dev_attr_pwm1_enable.dev_attr.attr,
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&sensor_dev_attr_pwm1.dev_attr.attr,
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&sensor_dev_attr_pwm1_freq.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
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NULL
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}, {
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&sensor_dev_attr_pwm2_enable.dev_attr.attr,
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&sensor_dev_attr_pwm2.dev_attr.attr,
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&sensor_dev_attr_pwm2_freq.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
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NULL
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}, {
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&sensor_dev_attr_pwm3_enable.dev_attr.attr,
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&sensor_dev_attr_pwm3.dev_attr.attr,
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&sensor_dev_attr_pwm3_freq.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
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NULL
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}, {
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&sensor_dev_attr_pwm4_enable.dev_attr.attr,
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&sensor_dev_attr_pwm4.dev_attr.attr,
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&sensor_dev_attr_pwm4_freq.dev_attr.attr,
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&sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr,
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NULL
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}, {
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&sensor_dev_attr_pwm5_enable.dev_attr.attr,
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&sensor_dev_attr_pwm5.dev_attr.attr,
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&sensor_dev_attr_pwm5_freq.dev_attr.attr,
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&sensor_dev_attr_pwm5_auto_channels_temp.dev_attr.attr,
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NULL
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}, {
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&sensor_dev_attr_pwm6_enable.dev_attr.attr,
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&sensor_dev_attr_pwm6.dev_attr.attr,
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&sensor_dev_attr_pwm6_freq.dev_attr.attr,
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&sensor_dev_attr_pwm6_auto_channels_temp.dev_attr.attr,
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NULL
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} };
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static umode_t pwm_attribute_mode(struct kobject *kobj, struct attribute *attr,
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int index)
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static umode_t it87_pwm_is_visible(struct kobject *kobj,
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struct attribute *attr, int index)
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{
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struct device *dev = container_of(kobj, struct device, kobj);
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struct it87_data *data = dev_get_drvdata(dev);
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int i = index / 4; /* pwm index */
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int a = index % 4; /* attribute index */
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if (has_pwm_freq2(data) && index == 2)
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if (!(data->has_pwm & (1 << i)))
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return 0;
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/* pwmX_auto_channels_temp is only writable for old auto pwm */
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if (a == 3 && has_old_autopwm(data))
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return attr->mode | S_IWUSR;
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/* pwm2_freq is writable if there are two pwm frequency selects */
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if (has_pwm_freq2(data) && i == 1 && a == 2)
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return attr->mode | S_IWUSR;
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return attr->mode;
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}
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static const struct attribute_group it87_group_pwm[6] = {
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{ .attrs = it87_attributes_pwm[0] },
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{ .attrs = it87_attributes_pwm[1],
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.is_visible = pwm_attribute_mode, },
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{ .attrs = it87_attributes_pwm[2] },
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{ .attrs = it87_attributes_pwm[3] },
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{ .attrs = it87_attributes_pwm[4] },
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{ .attrs = it87_attributes_pwm[5] },
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static struct attribute *it87_attributes_pwm[] = {
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&sensor_dev_attr_pwm1_enable.dev_attr.attr,
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&sensor_dev_attr_pwm1.dev_attr.attr,
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&sensor_dev_attr_pwm1_freq.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
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&sensor_dev_attr_pwm2_enable.dev_attr.attr,
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&sensor_dev_attr_pwm2.dev_attr.attr,
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&sensor_dev_attr_pwm2_freq.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
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&sensor_dev_attr_pwm3_enable.dev_attr.attr,
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&sensor_dev_attr_pwm3.dev_attr.attr,
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&sensor_dev_attr_pwm3_freq.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
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&sensor_dev_attr_pwm4_enable.dev_attr.attr,
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&sensor_dev_attr_pwm4.dev_attr.attr,
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&sensor_dev_attr_pwm4_freq.dev_attr.attr,
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&sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr,
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&sensor_dev_attr_pwm5_enable.dev_attr.attr,
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&sensor_dev_attr_pwm5.dev_attr.attr,
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&sensor_dev_attr_pwm5_freq.dev_attr.attr,
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&sensor_dev_attr_pwm5_auto_channels_temp.dev_attr.attr,
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&sensor_dev_attr_pwm6_enable.dev_attr.attr,
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&sensor_dev_attr_pwm6.dev_attr.attr,
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&sensor_dev_attr_pwm6_freq.dev_attr.attr,
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&sensor_dev_attr_pwm6_auto_channels_temp.dev_attr.attr,
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NULL
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};
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static struct attribute *it87_attributes_autopwm[3][9+1] = { {
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static const struct attribute_group it87_group_pwm = {
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.attrs = it87_attributes_pwm,
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.is_visible = it87_pwm_is_visible,
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};
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static umode_t it87_auto_pwm_is_visible(struct kobject *kobj,
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struct attribute *attr, int index)
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{
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struct device *dev = container_of(kobj, struct device, kobj);
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struct it87_data *data = dev_get_drvdata(dev);
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int i = index / 9; /* pwm index */
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if (!(data->has_pwm & (1 << i)))
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return 0;
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return attr->mode;
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}
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static struct attribute *it87_attributes_auto_pwm[] = {
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&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
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@ -2039,8 +2045,7 @@ static struct attribute *it87_attributes_autopwm[3][9+1] = { {
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&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
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NULL
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}, {
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&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
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@ -2050,8 +2055,7 @@ static struct attribute *it87_attributes_autopwm[3][9+1] = { {
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&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
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NULL
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}, {
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&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
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@ -2061,13 +2065,13 @@ static struct attribute *it87_attributes_autopwm[3][9+1] = { {
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&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
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NULL
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} };
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static const struct attribute_group it87_group_autopwm[3] = {
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{ .attrs = it87_attributes_autopwm[0] },
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{ .attrs = it87_attributes_autopwm[1] },
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{ .attrs = it87_attributes_autopwm[2] },
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NULL,
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};
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static const struct attribute_group it87_group_auto_pwm = {
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.attrs = it87_attributes_auto_pwm,
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.is_visible = it87_auto_pwm_is_visible,
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};
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static struct attribute *it87_attributes_vid[] = {
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@ -2456,23 +2460,15 @@ exit:
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static void it87_remove_files(struct device *dev)
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{
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struct it87_data *data = dev_get_drvdata(dev);
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struct it87_sio_data *sio_data = dev_get_platdata(dev);
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int i;
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sysfs_remove_group(&dev->kobj, &it87_group);
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sysfs_remove_group(&dev->kobj, &it87_group_in);
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sysfs_remove_group(&dev->kobj, &it87_group_temp);
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sysfs_remove_group(&dev->kobj, &it87_group_fan);
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sysfs_remove_group(&dev->kobj, &it87_group_pwm);
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sysfs_remove_group(&dev->kobj, &it87_group_auto_pwm);
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for (i = 0; i < 6; i++) {
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if (sio_data->skip_pwm & (1 << i))
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continue;
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sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
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if (has_old_autopwm(data))
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sysfs_remove_group(&dev->kobj,
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&it87_group_autopwm[i]);
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}
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if (!sio_data->skip_vid)
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sysfs_remove_group(&dev->kobj, &it87_group_vid);
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sysfs_remove_group(&dev->kobj, &it87_group_label);
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@ -2760,18 +2756,15 @@ static int it87_probe(struct platform_device *pdev)
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goto error;
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if (enable_pwm_interface) {
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for (i = 0; i < 6; i++) {
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if (sio_data->skip_pwm & (1 << i))
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continue;
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err = sysfs_create_group(&dev->kobj,
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&it87_group_pwm[i]);
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if (err)
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goto error;
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data->has_pwm = (1 << ARRAY_SIZE(IT87_REG_PWM)) - 1;
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data->has_pwm &= ~sio_data->skip_pwm;
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if (!has_old_autopwm(data))
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continue;
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err = sysfs_create_group(&dev->kobj, &it87_group_pwm);
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if (err)
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goto error;
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if (has_old_autopwm(data)) {
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err = sysfs_create_group(&dev->kobj,
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&it87_group_autopwm[i]);
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&it87_group_auto_pwm);
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if (err)
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goto error;
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}
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