1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2011 Pengutronix
4 * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
7 #include <linux/leds.h>
8 #include <linux/platform_device.h>
9 #include <linux/slab.h>
12 * gpio_led_register_device - register a gpio-led device
13 * @pdata: the platform data used for the new device
16 * Makes a copy of pdata and pdata->leds and registers a new leds-gpio device
17 * with the result. This allows to have pdata and pdata-leds in .init.rodata
18 * and so saves some bytes compared to a static struct platform_device with
19 * static platform data.
21 * Returns the registered device or an error pointer.
23 struct platform_device *__init gpio_led_register_device(
24 int id, const struct gpio_led_platform_data *pdata)
26 struct platform_device *ret;
27 struct gpio_led_platform_data _pdata = *pdata;
30 return ERR_PTR(-EINVAL);
32 _pdata.leds = kmemdup(pdata->leds,
33 pdata->num_leds * sizeof(*pdata->leds), GFP_KERNEL);
35 return ERR_PTR(-ENOMEM);
37 ret = platform_device_register_resndata(NULL, "leds-gpio", id,
38 NULL, 0, &_pdata, sizeof(_pdata));