--- zzzz-none-000/linux-3.10.107/drivers/leds/leds-lm3642.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/leds/leds-lm3642.c	2021-02-04 17:41:59.000000000 +0000
@@ -313,10 +313,22 @@
 	.max_register = REG_MAX,
 };
 
+static struct attribute *lm3642_flash_attrs[] = {
+	&dev_attr_strobe_pin.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(lm3642_flash);
+
+static struct attribute *lm3642_torch_attrs[] = {
+	&dev_attr_torch_pin.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(lm3642_torch);
+
 static int lm3642_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
-	struct lm3642_platform_data *pdata = client->dev.platform_data;
+	struct lm3642_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct lm3642_chip_data *chip;
 
 	int err;
@@ -364,17 +376,13 @@
 	chip->cdev_flash.max_brightness = 16;
 	chip->cdev_flash.brightness_set = lm3642_strobe_brightness_set;
 	chip->cdev_flash.default_trigger = "flash";
+	chip->cdev_flash.groups = lm3642_flash_groups,
 	err = led_classdev_register((struct device *)
 				    &client->dev, &chip->cdev_flash);
 	if (err < 0) {
 		dev_err(chip->dev, "failed to register flash\n");
 		goto err_out;
 	}
-	err = device_create_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
-	if (err < 0) {
-		dev_err(chip->dev, "failed to create strobe-pin file\n");
-		goto err_create_flash_pin_file;
-	}
 
 	/* torch */
 	INIT_WORK(&chip->work_torch, lm3642_deferred_torch_brightness_set);
@@ -382,17 +390,13 @@
 	chip->cdev_torch.max_brightness = 8;
 	chip->cdev_torch.brightness_set = lm3642_torch_brightness_set;
 	chip->cdev_torch.default_trigger = "torch";
+	chip->cdev_torch.groups = lm3642_torch_groups,
 	err = led_classdev_register((struct device *)
 				    &client->dev, &chip->cdev_torch);
 	if (err < 0) {
 		dev_err(chip->dev, "failed to register torch\n");
 		goto err_create_torch_file;
 	}
-	err = device_create_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
-	if (err < 0) {
-		dev_err(chip->dev, "failed to create torch-pin file\n");
-		goto err_create_torch_pin_file;
-	}
 
 	/* indicator */
 	INIT_WORK(&chip->work_indicator,
@@ -411,12 +415,8 @@
 	return 0;
 
 err_create_indicator_file:
-	device_remove_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
-err_create_torch_pin_file:
 	led_classdev_unregister(&chip->cdev_torch);
 err_create_torch_file:
-	device_remove_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
-err_create_flash_pin_file:
 	led_classdev_unregister(&chip->cdev_flash);
 err_out:
 	return err;
@@ -428,10 +428,8 @@
 
 	led_classdev_unregister(&chip->cdev_indicator);
 	flush_work(&chip->work_indicator);
-	device_remove_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
 	led_classdev_unregister(&chip->cdev_torch);
 	flush_work(&chip->work_torch);
-	device_remove_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
 	led_classdev_unregister(&chip->cdev_flash);
 	flush_work(&chip->work_flash);
 	regmap_write(chip->regmap, REG_ENABLE, 0);
@@ -448,7 +446,6 @@
 static struct i2c_driver lm3642_i2c_driver = {
 	.driver = {
 		   .name = LM3642_NAME,
-		   .owner = THIS_MODULE,
 		   .pm = NULL,
 		   },
 	.probe = lm3642_probe,