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hc
2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01 
 kernel/drivers/leds/leds-is31fl32xx.c
....@@ -1,12 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Driver for ISSI IS31FL32xx family of I2C LED controllers
34  *
45  * Copyright 2015 Allworx Corp.
5
- *
6
- *
7
- * This program is free software; you can redistribute it and/or modify
8
- * it under the terms of the GNU General Public License version 2 as
9
- * published by the Free Software Foundation.
106  *
117  * Datasheets:
128  *   http://www.issi.com/US/product-analog-fxled-driver.shtml
....@@ -48,7 +44,7 @@
4844 	const struct is31fl32xx_chipdef *cdef;
4945 	struct i2c_client *client;
5046 	unsigned int num_leds;
51
-	struct is31fl32xx_led_data leds[0];
47
+	struct is31fl32xx_led_data leds[];
5248 };
5349 
5450 /**
....@@ -328,12 +324,6 @@
328324 	return 0;
329325 }
330326 
331
-static inline size_t sizeof_is31fl32xx_priv(int num_leds)
332
-{
333
-	return sizeof(struct is31fl32xx_priv) +
334
-		      (sizeof(struct is31fl32xx_led_data) * num_leds);
335
-}
336
-
337327 static int is31fl32xx_parse_child_dt(const struct device *dev,
338328 				     const struct device_node *child,
339329 				     struct is31fl32xx_led_data *led_data)
....@@ -341,9 +331,6 @@
341331 	struct led_classdev *cdev = &led_data->cdev;
342332 	int ret = 0;
343333 	u32 reg;
344
-
345
-	if (of_property_read_string(child, "label", &cdev->name))
346
-		cdev->name = child->name;
347334 
348335 	ret = of_property_read_u32(child, "reg", &reg);
349336 	if (ret || reg < 1 || reg > led_data->priv->cdef->channels) {
....@@ -353,9 +340,6 @@
353340 		return -EINVAL;
354341 	}
355342 	led_data->channel = reg;
356
-
357
-	of_property_read_string(child, "linux,default-trigger",
358
-				&cdev->default_trigger);
359343 
360344 	cdev->brightness_set_blocking = is31fl32xx_brightness_set;
361345 
....@@ -382,7 +366,8 @@
382366 	struct device_node *child;
383367 	int ret = 0;
384368 
385
-	for_each_child_of_node(dev->of_node, child) {
369
+	for_each_available_child_of_node(dev_of_node(dev), child) {
370
+		struct led_init_data init_data = {};
386371 		struct is31fl32xx_led_data *led_data =
387372 			&priv->leds[priv->num_leds];
388373 		const struct is31fl32xx_led_data *other_led_data;
....@@ -398,17 +383,19 @@
398383 							  led_data->channel);
399384 		if (other_led_data) {
400385 			dev_err(dev,
401
-				"%s and %s both attempting to use channel %d\n",
402
-				led_data->cdev.name,
403
-				other_led_data->cdev.name,
404
-				led_data->channel);
386
+				"Node %pOF 'reg' conflicts with another LED\n",
387
+				child);
388
+			ret = -EINVAL;
405389 			goto err;
406390 		}
407391 
408
-		ret = devm_led_classdev_register(dev, &led_data->cdev);
392
+		init_data.fwnode = of_fwnode_handle(child);
393
+
394
+		ret = devm_led_classdev_register_ext(dev, &led_data->cdev,
395
+						     &init_data);
409396 		if (ret) {
410
-			dev_err(dev, "failed to register PWM led for %s: %d\n",
411
-				led_data->cdev.name, ret);
397
+			dev_err(dev, "Failed to register LED for %pOF: %d\n",
398
+				child, ret);
412399 			goto err;
413400 		}
414401 
....@@ -438,23 +425,18 @@
438425 			    const struct i2c_device_id *id)
439426 {
440427 	const struct is31fl32xx_chipdef *cdef;
441
-	const struct of_device_id *of_dev_id;
442428 	struct device *dev = &client->dev;
443429 	struct is31fl32xx_priv *priv;
444430 	int count;
445431 	int ret = 0;
446432 
447
-	of_dev_id = of_match_device(of_is31fl32xx_match, dev);
448
-	if (!of_dev_id)
449
-		return -EINVAL;
433
+	cdef = device_get_match_data(dev);
450434 
451
-	cdef = of_dev_id->data;
452
-
453
-	count = of_get_child_count(dev->of_node);
435
+	count = of_get_available_child_count(dev_of_node(dev));
454436 	if (!count)
455437 		return -EINVAL;
456438 
457
-	priv = devm_kzalloc(dev, sizeof_is31fl32xx_priv(count),
439
+	priv = devm_kzalloc(dev, struct_size(priv, leds, count),
458440 			    GFP_KERNEL);
459441 	if (!priv)
460442 		return -ENOMEM;