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@xxxxxxxxxxx>
---
drivers/hwmon/applesmc.c | 168 ++++++++++++++++++++-------------------------
1 files changed, 75 insertions(+), 93 deletions(-)
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 4ba20ec..c09cd2e 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -989,47 +989,27 @@ static struct led_classdev applesmc_backlight = {
.brightness_set = applesmc_brightness_set,
};
-static DEVICE_ATTR(name, 0444, applesmc_name_show, NULL);
-
-static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL);
-static DEVICE_ATTR(calibrate, 0644,
- applesmc_calibrate_show, applesmc_calibrate_store);
-
-static struct attribute *accelerometer_attributes[] = {
- &dev_attr_position.attr,
- &dev_attr_calibrate.attr,
- NULL
+static struct applesmc_node_group info_group[] = {
+ { "name", applesmc_name_show },
+ { "key_count", applesmc_key_count_show },
+ { "key_at_index", applesmc_key_at_index_show, applesmc_key_at_index_store },
+ { "key_at_index_name", applesmc_key_at_index_name_show },
+ { "key_at_index_type", applesmc_key_at_index_type_show },
+ { "key_at_index_data_length", applesmc_key_at_index_data_length_show },
+ { "key_at_index_data", applesmc_key_at_index_read_show },
+ { }
};
-static const struct attribute_group accelerometer_attributes_group =
- { .attrs = accelerometer_attributes };
-
-static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL);
-
-static DEVICE_ATTR(key_count, 0444, applesmc_key_count_show, NULL);
-static DEVICE_ATTR(key_at_index, 0644,
- applesmc_key_at_index_show, applesmc_key_at_index_store);
-static DEVICE_ATTR(key_at_index_name, 0444,
- applesmc_key_at_index_name_show, NULL);
-static DEVICE_ATTR(key_at_index_type, 0444,
- applesmc_key_at_index_type_show, NULL);
-static DEVICE_ATTR(key_at_index_data_length, 0444,
- applesmc_key_at_index_data_length_show, NULL);
-static DEVICE_ATTR(key_at_index_data, 0444,
- applesmc_key_at_index_read_show, NULL);
-
-static struct attribute *key_enumeration_attributes[] = {
- &dev_attr_key_count.attr,
- &dev_attr_key_at_index.attr,
- &dev_attr_key_at_index_name.attr,
- &dev_attr_key_at_index_type.attr,
- &dev_attr_key_at_index_data_length.attr,
- &dev_attr_key_at_index_data.attr,
- NULL
+static struct applesmc_node_group accelerometer_group[] = {
+ { "position", applesmc_position_show },
+ { "calibrate", applesmc_calibrate_show, applesmc_calibrate_store },
+ { }
};
-static const struct attribute_group key_enumeration_group =
- { .attrs = key_enumeration_attributes };
+static struct applesmc_node_group light_sensor_group[] = {
+ { "light", applesmc_light_show },
+ { }
+};
static struct applesmc_node_group fan_group[] = {
{ "fan%d_label", applesmc_show_fan_position },
@@ -1112,8 +1092,10 @@ static int applesmc_create_accelerometer(void)
struct input_dev *idev;
int ret;
- ret = sysfs_create_group(&pdev->dev.kobj,
- &accelerometer_attributes_group);
+ if (!smcreg.has_accelerometer)
+ return 0;
+
+ ret = applesmc_create_nodes(accelerometer_group, 1);
if (ret)
goto out;
@@ -1150,7 +1132,7 @@ out_idev:
input_free_polled_device(applesmc_idev);
out_sysfs:
- sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
+ applesmc_destroy_nodes(accelerometer_group);
out:
pr_warn("driver init failed (ret=%d)!\n", ret);
@@ -1160,9 +1142,43 @@ out:
/* Release all ressources used by the accelerometer */
static void applesmc_release_accelerometer(void)
{
+ if (!smcreg.has_accelerometer)
+ return;
input_unregister_polled_device(applesmc_idev);
input_free_polled_device(applesmc_idev);
- sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
+ applesmc_destroy_nodes(accelerometer_group);
+}
+
+static int applesmc_create_light_sensor(void)
+{
+ if (!smcreg.has_left_light)
+ return 0;
+ return applesmc_create_nodes(light_sensor_group, 1);
+}
+
+static void applesmc_release_light_sensor(void)
+{
+ if (!smcreg.has_left_light)
+ return;
+ applesmc_destroy_nodes(light_sensor_group);
+}
+
+static int applesmc_create_key_backlight(void)
+{
+ if (!smcreg.has_key_light)
+ return 0;
+ applesmc_led_wq = create_singlethread_workqueue("applesmc-led");
+ if (!applesmc_led_wq)
+ return -ENOMEM;
+ return led_classdev_register(&pdev->dev, &applesmc_backlight);
+}
+
+static void applesmc_release_key_backlight(void)
+{
+ if (!smcreg.has_key_light)
+ return;
+ led_classdev_unregister(&applesmc_backlight);
+ destroy_workqueue(applesmc_led_wq);
}
static int applesmc_dmi_match(const struct dmi_system_id *id)
@@ -1233,15 +1249,10 @@ static int __init applesmc_init(void)
if (ret)
goto out_device;
- ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr);
+ ret = applesmc_create_nodes(info_group, 1);
if (ret)
goto out_smcreg;
- /* Create key enumeration sysfs files */
- ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group);
- if (ret)
- goto out_name;
-
ret = applesmc_create_nodes(fan_group, smcreg.fan_count);
if (ret)
goto out_info;
@@ -1250,32 +1261,17 @@ static int __init applesmc_init(void)
if (ret)
goto out_fans;
- if (smcreg.has_accelerometer) {
- ret = applesmc_create_accelerometer();
- if (ret)
- goto out_temperature;
- }
-
- if (smcreg.has_left_light) {
- /* Add light sensor file */
- ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr);
- if (ret)
- goto out_accelerometer;
- }
+ ret = applesmc_create_accelerometer();
+ if (ret)
+ goto out_temperature;
- if (smcreg.has_key_light) {
- /* Create the workqueue */
- applesmc_led_wq = create_singlethread_workqueue("applesmc-led");
- if (!applesmc_led_wq) {
- ret = -ENOMEM;
- goto out_light_sysfs;
- }
+ ret = applesmc_create_light_sensor();
+ if (ret)
+ goto out_accelerometer;
- /* register as a led device */
- ret = led_classdev_register(&pdev->dev, &applesmc_backlight);
- if (ret < 0)
- goto out_light_wq;
- }
+ ret = applesmc_create_key_backlight();
+ if (ret)
+ goto out_light_sysfs;
hwmon_dev = hwmon_device_register(&pdev->dev);
if (IS_ERR(hwmon_dev)) {
@@ -1288,25 +1284,17 @@ static int __init applesmc_init(void)
return 0;
out_light_ledclass:
- if (smcreg.has_key_light)
- led_classdev_unregister(&applesmc_backlight);
-out_light_wq:
- if (smcreg.has_key_light)
- destroy_workqueue(applesmc_led_wq);
+ applesmc_release_key_backlight();
out_light_sysfs:
- if (smcreg.has_left_light)
- sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
+ applesmc_release_light_sensor();
out_accelerometer:
- if (smcreg.has_accelerometer)
- applesmc_release_accelerometer();
+ applesmc_release_accelerometer();
out_temperature:
applesmc_destroy_nodes(temp_group);
out_fans:
applesmc_destroy_nodes(fan_group);
out_info:
- sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
-out_name:
- sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
+ applesmc_destroy_nodes(info_group);
out_smcreg:
applesmc_destroy_smcreg();
out_device:
@@ -1323,18 +1311,12 @@ out:
static void __exit applesmc_exit(void)
{
hwmon_device_unregister(hwmon_dev);
- if (smcreg.has_key_light) {
- led_classdev_unregister(&applesmc_backlight);
- destroy_workqueue(applesmc_led_wq);
- }
- if (smcreg.has_left_light)
- sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
- if (smcreg.has_accelerometer)
- applesmc_release_accelerometer();
+ applesmc_release_key_backlight();
+ applesmc_release_light_sensor();
+ applesmc_release_accelerometer();
applesmc_destroy_nodes(temp_group);
applesmc_destroy_nodes(fan_group);
- sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
- sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
+ applesmc_destroy_nodes(info_group);
applesmc_destroy_smcreg();
platform_device_unregister(pdev);
platform_driver_unregister(&applesmc_driver);
--
1.7.1
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