leds-lp55xx: add new function for removing device attribtues
lp55xx_unregister_sysfs() is used for removing lp55xx device attributes.
Chip specific and engine attributes are removed on unloading the driver.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 9638ad4..782ab84 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -509,6 +509,18 @@
}
EXPORT_SYMBOL_GPL(lp55xx_register_sysfs);
+void lp55xx_unregister_sysfs(struct lp55xx_chip *chip)
+{
+ struct device *dev = &chip->cl->dev;
+ struct lp55xx_device_config *cfg = chip->cfg;
+
+ if (cfg->dev_attr_group)
+ sysfs_remove_group(&dev->kobj, cfg->dev_attr_group);
+
+ sysfs_remove_group(&dev->kobj, &lp55xx_engine_attr_group);
+}
+EXPORT_SYMBOL_GPL(lp55xx_unregister_sysfs);
+
MODULE_AUTHOR("Milo Kim <milo.kim@ti.com>");
MODULE_DESCRIPTION("LP55xx Common Driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index 64eb78d..ece4761 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -129,5 +129,6 @@
/* common device attributes functions */
extern int lp55xx_register_sysfs(struct lp55xx_chip *chip);
+extern void lp55xx_unregister_sysfs(struct lp55xx_chip *chip);
#endif /* _LEDS_LP55XX_COMMON_H */