hwmon: (applesmc) Simplify feature sysfs handling
Given the dynamic node construction method, the setup of the accelerometer, light sensor and keyboard backlight sysfs nodes can be simplified. This patch does not contain any logic changes. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Henrik Rydberg
Guenter Roeck
Родитель
3eba2bf7c5
Коммит
0b0b5dff89
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@ -992,47 +992,27 @@ static struct led_classdev applesmc_backlight = {
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.brightness_set = applesmc_brightness_set,
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};
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static DEVICE_ATTR(name, 0444, applesmc_name_show, NULL);
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static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL);
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static DEVICE_ATTR(calibrate, 0644,
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applesmc_calibrate_show, applesmc_calibrate_store);
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static struct attribute *accelerometer_attributes[] = {
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&dev_attr_position.attr,
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&dev_attr_calibrate.attr,
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NULL
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static struct applesmc_node_group info_group[] = {
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{ "name", applesmc_name_show },
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{ "key_count", applesmc_key_count_show },
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{ "key_at_index", applesmc_key_at_index_show, applesmc_key_at_index_store },
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{ "key_at_index_name", applesmc_key_at_index_name_show },
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{ "key_at_index_type", applesmc_key_at_index_type_show },
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{ "key_at_index_data_length", applesmc_key_at_index_data_length_show },
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{ "key_at_index_data", applesmc_key_at_index_read_show },
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{ }
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};
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static const struct attribute_group accelerometer_attributes_group =
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{ .attrs = accelerometer_attributes };
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static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL);
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static DEVICE_ATTR(key_count, 0444, applesmc_key_count_show, NULL);
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static DEVICE_ATTR(key_at_index, 0644,
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applesmc_key_at_index_show, applesmc_key_at_index_store);
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static DEVICE_ATTR(key_at_index_name, 0444,
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applesmc_key_at_index_name_show, NULL);
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static DEVICE_ATTR(key_at_index_type, 0444,
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applesmc_key_at_index_type_show, NULL);
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static DEVICE_ATTR(key_at_index_data_length, 0444,
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applesmc_key_at_index_data_length_show, NULL);
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static DEVICE_ATTR(key_at_index_data, 0444,
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applesmc_key_at_index_read_show, NULL);
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static struct attribute *key_enumeration_attributes[] = {
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&dev_attr_key_count.attr,
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&dev_attr_key_at_index.attr,
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&dev_attr_key_at_index_name.attr,
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&dev_attr_key_at_index_type.attr,
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&dev_attr_key_at_index_data_length.attr,
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&dev_attr_key_at_index_data.attr,
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NULL
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static struct applesmc_node_group accelerometer_group[] = {
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{ "position", applesmc_position_show },
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{ "calibrate", applesmc_calibrate_show, applesmc_calibrate_store },
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{ }
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};
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static const struct attribute_group key_enumeration_group =
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{ .attrs = key_enumeration_attributes };
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static struct applesmc_node_group light_sensor_group[] = {
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{ "light", applesmc_light_show },
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{ }
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};
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static struct applesmc_node_group fan_group[] = {
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{ "fan%d_label", applesmc_show_fan_position },
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@ -1115,8 +1095,10 @@ static int applesmc_create_accelerometer(void)
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struct input_dev *idev;
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int ret;
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ret = sysfs_create_group(&pdev->dev.kobj,
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&accelerometer_attributes_group);
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if (!smcreg.has_accelerometer)
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return 0;
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ret = applesmc_create_nodes(accelerometer_group, 1);
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if (ret)
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goto out;
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@ -1153,7 +1135,7 @@ out_idev:
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input_free_polled_device(applesmc_idev);
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out_sysfs:
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sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
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applesmc_destroy_nodes(accelerometer_group);
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out:
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pr_warn("driver init failed (ret=%d)!\n", ret);
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@ -1163,10 +1145,45 @@ out:
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/* Release all ressources used by the accelerometer */
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static void applesmc_release_accelerometer(void)
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{
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if (!smcreg.has_accelerometer)
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return;
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input_unregister_polled_device(applesmc_idev);
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input_free_polled_device(applesmc_idev);
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sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
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applesmc_destroy_nodes(accelerometer_group);
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}
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static int applesmc_create_light_sensor(void)
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{
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if (!smcreg.num_light_sensors)
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return 0;
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return applesmc_create_nodes(light_sensor_group, 1);
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}
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static void applesmc_release_light_sensor(void)
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{
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if (!smcreg.num_light_sensors)
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return;
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applesmc_destroy_nodes(light_sensor_group);
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}
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static int applesmc_create_key_backlight(void)
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{
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if (!smcreg.has_key_backlight)
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return 0;
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applesmc_led_wq = create_singlethread_workqueue("applesmc-led");
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if (!applesmc_led_wq)
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return -ENOMEM;
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return led_classdev_register(&pdev->dev, &applesmc_backlight);
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}
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static void applesmc_release_key_backlight(void)
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{
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if (!smcreg.has_key_backlight)
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return;
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led_classdev_unregister(&applesmc_backlight);
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destroy_workqueue(applesmc_led_wq);
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}
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static int applesmc_dmi_match(const struct dmi_system_id *id)
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{
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return 1;
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@ -1234,15 +1251,10 @@ static int __init applesmc_init(void)
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if (ret)
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goto out_device;
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ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr);
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ret = applesmc_create_nodes(info_group, 1);
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if (ret)
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goto out_smcreg;
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/* Create key enumeration sysfs files */
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ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group);
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if (ret)
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goto out_name;
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ret = applesmc_create_nodes(fan_group, smcreg.fan_count);
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if (ret)
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goto out_info;
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@ -1251,32 +1263,17 @@ static int __init applesmc_init(void)
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if (ret)
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goto out_fans;
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if (smcreg.has_accelerometer) {
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ret = applesmc_create_accelerometer();
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if (ret)
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goto out_temperature;
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}
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ret = applesmc_create_accelerometer();
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if (ret)
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goto out_temperature;
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if (smcreg.num_light_sensors) {
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/* Add light sensor file */
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ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr);
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if (ret)
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goto out_accelerometer;
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}
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ret = applesmc_create_light_sensor();
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if (ret)
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goto out_accelerometer;
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if (smcreg.has_key_backlight) {
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/* Create the workqueue */
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applesmc_led_wq = create_singlethread_workqueue("applesmc-led");
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if (!applesmc_led_wq) {
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ret = -ENOMEM;
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goto out_light_sysfs;
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}
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/* register as a led device */
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ret = led_classdev_register(&pdev->dev, &applesmc_backlight);
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if (ret < 0)
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goto out_light_wq;
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}
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ret = applesmc_create_key_backlight();
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if (ret)
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goto out_light_sysfs;
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hwmon_dev = hwmon_device_register(&pdev->dev);
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if (IS_ERR(hwmon_dev)) {
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@ -1289,25 +1286,17 @@ static int __init applesmc_init(void)
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return 0;
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out_light_ledclass:
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if (smcreg.has_key_backlight)
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led_classdev_unregister(&applesmc_backlight);
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out_light_wq:
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if (smcreg.has_key_backlight)
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destroy_workqueue(applesmc_led_wq);
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applesmc_release_key_backlight();
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out_light_sysfs:
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if (smcreg.num_light_sensors)
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sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
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applesmc_release_light_sensor();
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out_accelerometer:
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if (smcreg.has_accelerometer)
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applesmc_release_accelerometer();
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applesmc_release_accelerometer();
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out_temperature:
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applesmc_destroy_nodes(temp_group);
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out_fans:
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applesmc_destroy_nodes(fan_group);
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out_info:
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sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
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out_name:
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sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
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applesmc_destroy_nodes(info_group);
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out_smcreg:
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applesmc_destroy_smcreg();
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out_device:
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@ -1324,18 +1313,12 @@ out:
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static void __exit applesmc_exit(void)
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{
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hwmon_device_unregister(hwmon_dev);
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if (smcreg.has_key_backlight) {
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led_classdev_unregister(&applesmc_backlight);
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destroy_workqueue(applesmc_led_wq);
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}
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if (smcreg.num_light_sensors)
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sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
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if (smcreg.has_accelerometer)
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applesmc_release_accelerometer();
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applesmc_release_key_backlight();
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applesmc_release_light_sensor();
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applesmc_release_accelerometer();
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applesmc_destroy_nodes(temp_group);
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applesmc_destroy_nodes(fan_group);
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sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
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sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
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applesmc_destroy_nodes(info_group);
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applesmc_destroy_smcreg();
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platform_device_unregister(pdev);
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platform_driver_unregister(&applesmc_driver);
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