Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

hwmon: (it87) Use is_visible for pwm attributes

Browse source 
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 2013-03-30 15:02:12 -07:00
parent 9a70ee814d
commit 5c3912616d
1 changed files with 88 additions and 95 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

181
drivers/hwmon/it87.c
View file

@ -498,6 +498,7 @@ struct it87_data {
* is no longer needed, but it is still done to keep the driver * is no longer needed, but it is still done to keep the driver
* simple. * simple.
*/ */
u8 has_pwm; /* Bitfield, pwm control enabled */
u8 pwm_ctrl[6]; /* Register value */ u8 pwm_ctrl[6]; /* Register value */
u8 pwm_duty[6]; /* Manual PWM value set by user */ u8 pwm_duty[6]; /* Manual PWM value set by user */
u8 pwm_temp_map[6]; /* PWM to temp. chan. mapping (bits 1-0) */ u8 pwm_temp_map[6]; /* PWM to temp. chan. mapping (bits 1-0) */
@ -1340,15 +1341,6 @@ static ssize_t set_pwm_temp_map(struct device *dev,
long val; long val;
u8 reg; u8 reg;
/*
* This check can go away if we ever support automatic fan speed
* control on newer chips.
*/
if (!has_old_autopwm(data)) {
dev_notice(dev, "Mapping change disabled for safety reasons\n");
return -EINVAL;
}
if (kstrtol(buf, 10, &val) < 0) if (kstrtol(buf, 10, &val) < 0)
return -EINVAL; return -EINVAL;
@ -1482,7 +1474,7 @@ static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq,
set_pwm_freq, 0); set_pwm_freq, 0);
static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO,
show_pwm_temp_map, set_pwm_temp_map, 0); show_pwm_temp_map, set_pwm_temp_map, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
show_auto_pwm, set_auto_pwm, 0, 0); show_auto_pwm, set_auto_pwm, 0, 0);
@ -1507,7 +1499,7 @@ static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
show_pwm_enable, set_pwm_enable, 1); show_pwm_enable, set_pwm_enable, 1);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, set_pwm_freq, 1); static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, set_pwm_freq, 1);
static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO,
show_pwm_temp_map, set_pwm_temp_map, 1); show_pwm_temp_map, set_pwm_temp_map, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
show_auto_pwm, set_auto_pwm, 1, 0); show_auto_pwm, set_auto_pwm, 1, 0);
@ -1532,7 +1524,7 @@ static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
show_pwm_enable, set_pwm_enable, 2); show_pwm_enable, set_pwm_enable, 2);
static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2); static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2);
static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL, 2); static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL, 2);
static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO,
show_pwm_temp_map, set_pwm_temp_map, 2); show_pwm_temp_map, set_pwm_temp_map, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
show_auto_pwm, set_auto_pwm, 2, 0); show_auto_pwm, set_auto_pwm, 2, 0);
@ -1557,21 +1549,21 @@ static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR,
show_pwm_enable, set_pwm_enable, 3); show_pwm_enable, set_pwm_enable, 3);
static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 3); static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 3);
static SENSOR_DEVICE_ATTR(pwm4_freq, S_IRUGO, show_pwm_freq, NULL, 3); static SENSOR_DEVICE_ATTR(pwm4_freq, S_IRUGO, show_pwm_freq, NULL, 3);
static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IRUGO,
show_pwm_temp_map, set_pwm_temp_map, 3); show_pwm_temp_map, set_pwm_temp_map, 3);
static SENSOR_DEVICE_ATTR(pwm5_enable, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm5_enable, S_IRUGO | S_IWUSR,
show_pwm_enable, set_pwm_enable, 4); show_pwm_enable, set_pwm_enable, 4);
static SENSOR_DEVICE_ATTR(pwm5, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 4); static SENSOR_DEVICE_ATTR(pwm5, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 4);
static SENSOR_DEVICE_ATTR(pwm5_freq, S_IRUGO, show_pwm_freq, NULL, 4); static SENSOR_DEVICE_ATTR(pwm5_freq, S_IRUGO, show_pwm_freq, NULL, 4);
static SENSOR_DEVICE_ATTR(pwm5_auto_channels_temp, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm5_auto_channels_temp, S_IRUGO,
show_pwm_temp_map, set_pwm_temp_map, 4); show_pwm_temp_map, set_pwm_temp_map, 4);
static SENSOR_DEVICE_ATTR(pwm6_enable, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm6_enable, S_IRUGO | S_IWUSR,
show_pwm_enable, set_pwm_enable, 5); show_pwm_enable, set_pwm_enable, 5);
static SENSOR_DEVICE_ATTR(pwm6, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 5); static SENSOR_DEVICE_ATTR(pwm6, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 5);
static SENSOR_DEVICE_ATTR(pwm6_freq, S_IRUGO, show_pwm_freq, NULL, 5); static SENSOR_DEVICE_ATTR(pwm6_freq, S_IRUGO, show_pwm_freq, NULL, 5);
static SENSOR_DEVICE_ATTR(pwm6_auto_channels_temp, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(pwm6_auto_channels_temp, S_IRUGO,
show_pwm_temp_map, set_pwm_temp_map, 5); show_pwm_temp_map, set_pwm_temp_map, 5);
/* Alarms */ /* Alarms */
@ -1969,67 +1961,81 @@ static const struct attribute_group it87_group_fan = {
.is_visible = it87_fan_is_visible, .is_visible = it87_fan_is_visible,
}; };
static struct attribute *it87_attributes_pwm[6][4+1] = { { static umode_t it87_pwm_is_visible(struct kobject *kobj,
&sensor_dev_attr_pwm1_enable.dev_attr.attr, struct attribute *attr, int index)
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_freq.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm2_freq.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_freq.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_pwm4_enable.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
&sensor_dev_attr_pwm4_freq.dev_attr.attr,
&sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_pwm5_enable.dev_attr.attr,
&sensor_dev_attr_pwm5.dev_attr.attr,
&sensor_dev_attr_pwm5_freq.dev_attr.attr,
&sensor_dev_attr_pwm5_auto_channels_temp.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_pwm6_enable.dev_attr.attr,
&sensor_dev_attr_pwm6.dev_attr.attr,
&sensor_dev_attr_pwm6_freq.dev_attr.attr,
&sensor_dev_attr_pwm6_auto_channels_temp.dev_attr.attr,
NULL
} };
static umode_t pwm_attribute_mode(struct kobject *kobj, struct attribute *attr,
int index)
{ {
struct device *dev = container_of(kobj, struct device, kobj); struct device *dev = container_of(kobj, struct device, kobj);
struct it87_data *data = dev_get_drvdata(dev); struct it87_data *data = dev_get_drvdata(dev);
int i = index / 4; /* pwm index */
int a = index % 4; /* attribute index */
if (has_pwm_freq2(data) && index == 2) if (!(data->has_pwm & (1 << i)))
return 0;
/* pwmX_auto_channels_temp is only writable for old auto pwm */
if (a == 3 && has_old_autopwm(data))
return attr->mode | S_IWUSR;
/* pwm2_freq is writable if there are two pwm frequency selects */
if (has_pwm_freq2(data) && i == 1 && a == 2)
return attr->mode | S_IWUSR; return attr->mode | S_IWUSR;
return attr->mode; return attr->mode;
} }
static const struct attribute_group it87_group_pwm[6] = { static struct attribute *it87_attributes_pwm[] = {
{ .attrs = it87_attributes_pwm[0] }, &sensor_dev_attr_pwm1_enable.dev_attr.attr,
{ .attrs = it87_attributes_pwm[1], &sensor_dev_attr_pwm1.dev_attr.attr,
.is_visible = pwm_attribute_mode, }, &sensor_dev_attr_pwm1_freq.dev_attr.attr,
{ .attrs = it87_attributes_pwm[2] }, &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
{ .attrs = it87_attributes_pwm[3] },
{ .attrs = it87_attributes_pwm[4] }, &sensor_dev_attr_pwm2_enable.dev_attr.attr,
{ .attrs = it87_attributes_pwm[5] }, &sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm2_freq.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_freq.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm4_enable.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
&sensor_dev_attr_pwm4_freq.dev_attr.attr,
&sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm5_enable.dev_attr.attr,
&sensor_dev_attr_pwm5.dev_attr.attr,
&sensor_dev_attr_pwm5_freq.dev_attr.attr,
&sensor_dev_attr_pwm5_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm6_enable.dev_attr.attr,
&sensor_dev_attr_pwm6.dev_attr.attr,
&sensor_dev_attr_pwm6_freq.dev_attr.attr,
&sensor_dev_attr_pwm6_auto_channels_temp.dev_attr.attr,
NULL
}; };
static struct attribute *it87_attributes_autopwm[3][9+1] = { { static const struct attribute_group it87_group_pwm = {
.attrs = it87_attributes_pwm,
.is_visible = it87_pwm_is_visible,
};
static umode_t it87_auto_pwm_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct it87_data *data = dev_get_drvdata(dev);
int i = index / 9; /* pwm index */
if (!(data->has_pwm & (1 << i)))
return 0;
return attr->mode;
}
static struct attribute *it87_attributes_auto_pwm[] = {
&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
@ -2039,8 +2045,7 @@ static struct attribute *it87_attributes_autopwm[3][9+1] = { {
&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
@ -2050,8 +2055,7 @@ static struct attribute *it87_attributes_autopwm[3][9+1] = { {
&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
@ -2061,13 +2065,13 @@ static struct attribute *it87_attributes_autopwm[3][9+1] = { {
&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
NULL
} };
static const struct attribute_group it87_group_autopwm[3] = { NULL,
{ .attrs = it87_attributes_autopwm[0] }, };
{ .attrs = it87_attributes_autopwm[1] },
{ .attrs = it87_attributes_autopwm[2] }, static const struct attribute_group it87_group_auto_pwm = {
.attrs = it87_attributes_auto_pwm,
.is_visible = it87_auto_pwm_is_visible,
}; };
static struct attribute *it87_attributes_vid[] = { static struct attribute *it87_attributes_vid[] = {
@ -2456,23 +2460,15 @@ static int __init it87_find(int sioaddr, unsigned short *address,
static void it87_remove_files(struct device *dev) static void it87_remove_files(struct device *dev)
{ {
struct it87_data *data = dev_get_drvdata(dev);
struct it87_sio_data *sio_data = dev_get_platdata(dev); struct it87_sio_data *sio_data = dev_get_platdata(dev);
int i;
sysfs_remove_group(&dev->kobj, &it87_group); sysfs_remove_group(&dev->kobj, &it87_group);
sysfs_remove_group(&dev->kobj, &it87_group_in); sysfs_remove_group(&dev->kobj, &it87_group_in);
sysfs_remove_group(&dev->kobj, &it87_group_temp); sysfs_remove_group(&dev->kobj, &it87_group_temp);
sysfs_remove_group(&dev->kobj, &it87_group_fan); sysfs_remove_group(&dev->kobj, &it87_group_fan);
sysfs_remove_group(&dev->kobj, &it87_group_pwm);
sysfs_remove_group(&dev->kobj, &it87_group_auto_pwm);
for (i = 0; i < 6; i++) {
if (sio_data->skip_pwm & (1 << i))
continue;
sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
if (has_old_autopwm(data))
sysfs_remove_group(&dev->kobj,
&it87_group_autopwm[i]);
}
if (!sio_data->skip_vid) if (!sio_data->skip_vid)
sysfs_remove_group(&dev->kobj, &it87_group_vid); sysfs_remove_group(&dev->kobj, &it87_group_vid);
sysfs_remove_group(&dev->kobj, &it87_group_label); sysfs_remove_group(&dev->kobj, &it87_group_label);
@ -2760,18 +2756,15 @@ static int it87_probe(struct platform_device *pdev)
goto error; goto error;
if (enable_pwm_interface) { if (enable_pwm_interface) {
for (i = 0; i < 6; i++) { data->has_pwm = (1 << ARRAY_SIZE(IT87_REG_PWM)) - 1;
if (sio_data->skip_pwm & (1 << i)) data->has_pwm &= ~sio_data->skip_pwm;
continue;
err = sysfs_create_group(&dev->kobj, err = sysfs_create_group(&dev->kobj, &it87_group_pwm);
&it87_group_pwm[i]);
if (err) if (err)
goto error; goto error;
if (has_old_autopwm(data)) {
if (!has_old_autopwm(data))
continue;
err = sysfs_create_group(&dev->kobj, err = sysfs_create_group(&dev->kobj,
&it87_group_autopwm[i]); &it87_group_auto_pwm);
if (err) if (err)
goto error; goto error;
} }