add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/leds/leds-pm8058.c
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@@ -1,13 +1,5 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /* Copyright (c) 2010, 2011, 2016 The Linux Foundation. All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 and
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- * only version 2 as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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  */
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 #include <linux/leds.h>
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 #include <linux/module.h>
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@@ -95,36 +87,36 @@
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 static int pm8058_led_probe(struct platform_device *pdev)
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 {
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+	struct led_init_data init_data = {};
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+	struct device *dev = &pdev->dev;
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 	struct pm8058_led *led;
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-	struct device_node *np = pdev->dev.of_node;
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+	struct device_node *np;
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 	int ret;
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 	struct regmap *map;
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 	const char *state;
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 	enum led_brightness maxbright;
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-	led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
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+	led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
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 	if (!led)
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 		return -ENOMEM;
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-	led->ledtype = (u32)(unsigned long)of_device_get_match_data(&pdev->dev);
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+	led->ledtype = (u32)(unsigned long)of_device_get_match_data(dev);
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-	map = dev_get_regmap(pdev->dev.parent, NULL);
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+	map = dev_get_regmap(dev->parent, NULL);
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 	if (!map) {
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-		dev_err(&pdev->dev, "Parent regmap unavailable.\n");
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+		dev_err(dev, "Parent regmap unavailable.\n");
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 		return -ENXIO;
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 	}
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 	led->map = map;
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+	np = dev_of_node(dev);
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+
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 	ret = of_property_read_u32(np, "reg", &led->reg);
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 	if (ret) {
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-		dev_err(&pdev->dev, "no register offset specified\n");
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+		dev_err(dev, "no register offset specified\n");
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 		return -EINVAL;
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 	}
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-	/* Use label else node name */
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-	led->cdev.name = of_get_property(np, "label", NULL) ? : np->name;
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-	led->cdev.default_trigger =
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-		of_get_property(np, "linux,default-trigger", NULL);
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 	led->cdev.brightness_set = pm8058_led_set;
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 	led->cdev.brightness_get = pm8058_led_get;
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 	if (led->ledtype == PM8058_LED_TYPE_COMMON)
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@@ -150,14 +142,13 @@
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 	    led->ledtype == PM8058_LED_TYPE_FLASH)
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 		led->cdev.flags	= LED_CORE_SUSPENDRESUME;
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-	ret = devm_led_classdev_register(&pdev->dev, &led->cdev);
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-	if (ret) {
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-		dev_err(&pdev->dev, "unable to register led \"%s\"\n",
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-			led->cdev.name);
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-		return ret;
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-	}
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+	init_data.fwnode = of_fwnode_handle(np);
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-	return 0;
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+	ret = devm_led_classdev_register_ext(dev, &led->cdev, &init_data);
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+	if (ret)
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+		dev_err(dev, "Failed to register LED for %pOF\n", np);
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+
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+	return ret;
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 }
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 static const struct of_device_id pm8058_leds_id_table[] = {