From 723a0aa0a10f111d7e9e0977d51ac996bf8edbbf Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 5 Mar 2010 22:17:16 +0100 Subject: [PATCH] hwmon: (it87) Refactor attributes creation and removal There is a lot of code redundancy in the creation of the fan and pwm attributes. Move these attributes to arrays so that the code can be simplified. This in turns makes the attributes removal code larger, so move it to a separate function that can be called in both the standard removal case and the error path during probing. Signed-off-by: Jean Delvare --- drivers/hwmon/it87.c | 233 +++++++++++++++++++------------------------ 1 file changed, 103 insertions(+), 130 deletions(-) diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 41b55a74ce89..5df0824fc832 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -1014,47 +1014,100 @@ static const struct attribute_group it87_group = { .attrs = it87_attributes, }; -static struct attribute *it87_attributes_opt[] = { +static struct attribute *it87_attributes_fan16[5][3+1] = { { &sensor_dev_attr_fan1_input16.dev_attr.attr, &sensor_dev_attr_fan1_min16.dev_attr.attr, + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan2_input16.dev_attr.attr, &sensor_dev_attr_fan2_min16.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan3_input16.dev_attr.attr, &sensor_dev_attr_fan3_min16.dev_attr.attr, + &sensor_dev_attr_fan3_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan4_input16.dev_attr.attr, &sensor_dev_attr_fan4_min16.dev_attr.attr, + &sensor_dev_attr_fan4_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan5_input16.dev_attr.attr, &sensor_dev_attr_fan5_min16.dev_attr.attr, + &sensor_dev_attr_fan5_alarm.dev_attr.attr, + NULL +} }; +static const struct attribute_group it87_group_fan16[5] = { + { .attrs = it87_attributes_fan16[0] }, + { .attrs = it87_attributes_fan16[1] }, + { .attrs = it87_attributes_fan16[2] }, + { .attrs = it87_attributes_fan16[3] }, + { .attrs = it87_attributes_fan16[4] }, +}; + +static struct attribute *it87_attributes_fan[3][4+1] = { { &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan1_div.dev_attr.attr, + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan3_input.dev_attr.attr, &sensor_dev_attr_fan3_min.dev_attr.attr, &sensor_dev_attr_fan3_div.dev_attr.attr, - - &sensor_dev_attr_fan1_alarm.dev_attr.attr, - &sensor_dev_attr_fan2_alarm.dev_attr.attr, &sensor_dev_attr_fan3_alarm.dev_attr.attr, - &sensor_dev_attr_fan4_alarm.dev_attr.attr, - &sensor_dev_attr_fan5_alarm.dev_attr.attr, + NULL +} }; +static const struct attribute_group it87_group_fan[3] = { + { .attrs = it87_attributes_fan[0] }, + { .attrs = it87_attributes_fan[1] }, + { .attrs = it87_attributes_fan[2] }, +}; + +static const struct attribute_group * +it87_get_fan_group(const struct it87_data *data) +{ + return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; +} + +static struct attribute *it87_attributes_pwm[3][4+1] = { { &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.dev_attr.attr, - &sensor_dev_attr_pwm2.dev_attr.attr, - &sensor_dev_attr_pwm3.dev_attr.attr, &dev_attr_pwm1_freq.attr, - &dev_attr_pwm2_freq.attr, - &dev_attr_pwm3_freq.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, + &dev_attr_pwm2_freq.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, + &dev_attr_pwm3_freq.attr, &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, + NULL +} }; +static const struct attribute_group it87_group_pwm[3] = { + { .attrs = it87_attributes_pwm[0] }, + { .attrs = it87_attributes_pwm[1] }, + { .attrs = it87_attributes_pwm[2] }, +}; + +static struct attribute *it87_attributes_opt[] = { &dev_attr_vrm.attr, &dev_attr_cpu0_vid.attr, NULL @@ -1179,13 +1232,35 @@ exit: return err; } +static void it87_remove_files(struct device *dev) +{ + struct it87_data *data = platform_get_drvdata(pdev); + struct it87_sio_data *sio_data = dev->platform_data; + const struct attribute_group *fan_group = it87_get_fan_group(data); + int i; + + sysfs_remove_group(&dev->kobj, &it87_group); + for (i = 0; i < 5; i++) { + if (!(data->has_fan & (1 << i))) + continue; + sysfs_remove_group(&dev->kobj, &fan_group[i]); + } + for (i = 0; i < 3; i++) { + if (sio_data->skip_pwm & (1 << 0)) + continue; + sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); + } + sysfs_remove_group(&dev->kobj, &it87_group_opt); +} + static int __devinit it87_probe(struct platform_device *pdev) { struct it87_data *data; struct resource *res; struct device *dev = &pdev->dev; struct it87_sio_data *sio_data = dev->platform_data; - int err = 0; + const struct attribute_group *fan_group; + int err = 0, i; int enable_pwm_interface; static const char *names[] = { "it87", @@ -1236,122 +1311,22 @@ static int __devinit it87_probe(struct platform_device *pdev) goto ERROR2; /* Do not create fan files for disabled fans */ - if (has_16bit_fans(data)) { - /* 16-bit tachometers */ - if (data->has_fan & (1 << 0)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan1_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 1)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan2_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 2)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan3_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 3)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan4_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan4_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan4_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 4)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan5_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan5_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan5_alarm.dev_attr))) - goto ERROR4; - } - } else { - /* 8-bit tachometers with clock divider */ - if (data->has_fan & (1 << 0)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan1_input.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_min.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_div.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 1)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan2_input.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_min.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_div.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 2)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan3_input.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_min.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_div.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_alarm.dev_attr))) - goto ERROR4; - } + fan_group = it87_get_fan_group(data); + for (i = 0; i < 5; i++) { + if (!(data->has_fan & (1 << i))) + continue; + err = sysfs_create_group(&dev->kobj, &fan_group[i]); + if (err) + goto ERROR4; } if (enable_pwm_interface) { - if (!(sio_data->skip_pwm & (1 << 0))) { - if ((err = device_create_file(dev, - &sensor_dev_attr_pwm1_enable.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm1.dev_attr)) - || (err = device_create_file(dev, - &dev_attr_pwm1_freq)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr))) - goto ERROR4; - } - if (!(sio_data->skip_pwm & (1 << 1))) { - if ((err = device_create_file(dev, - &sensor_dev_attr_pwm2_enable.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm2.dev_attr)) - || (err = device_create_file(dev, - &dev_attr_pwm2_freq)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr))) - goto ERROR4; - } - if (!(sio_data->skip_pwm & (1 << 2))) { - if ((err = device_create_file(dev, - &sensor_dev_attr_pwm3_enable.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm3.dev_attr)) - || (err = device_create_file(dev, - &dev_attr_pwm3_freq)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr))) + for (i = 0; i < 3; i++) { + if (sio_data->skip_pwm & (1 << i)) + continue; + err = sysfs_create_group(&dev->kobj, + &it87_group_pwm[i]); + if (err) goto ERROR4; } } @@ -1376,8 +1351,7 @@ static int __devinit it87_probe(struct platform_device *pdev) return 0; ERROR4: - sysfs_remove_group(&dev->kobj, &it87_group); - sysfs_remove_group(&dev->kobj, &it87_group_opt); + it87_remove_files(dev); ERROR2: platform_set_drvdata(pdev, NULL); kfree(data); @@ -1392,8 +1366,7 @@ static int __devexit it87_remove(struct platform_device *pdev) struct it87_data *data = platform_get_drvdata(pdev); hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&pdev->dev.kobj, &it87_group); - sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt); + it87_remove_files(&pdev->dev); release_region(data->addr, IT87_EC_EXTENT); platform_set_drvdata(pdev, NULL);