1 /*
2 * Atheros AR71XX/AR724X/AR913X common GPIO LEDs support
3 *
4 * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published
9 * by the Free Software Foundation.
10 */
11
12 #include <linux/init.h>
13 #include <linux/slab.h>
14 #include <linux/platform_device.h>
15
16 #include "dev-leds-gpio.h"
17
ath79_register_leds_gpio(int id,unsigned num_leds,struct gpio_led * leds)18 void __init ath79_register_leds_gpio(int id,
19 unsigned num_leds,
20 struct gpio_led *leds)
21 {
22 struct platform_device *pdev;
23 struct gpio_led_platform_data pdata;
24 struct gpio_led *p;
25 int err;
26
27 p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
28 if (!p)
29 return;
30
31 memcpy(p, leds, num_leds * sizeof(*p));
32
33 pdev = platform_device_alloc("leds-gpio", id);
34 if (!pdev)
35 goto err_free_leds;
36
37 memset(&pdata, 0, sizeof(pdata));
38 pdata.num_leds = num_leds;
39 pdata.leds = p;
40
41 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
42 if (err)
43 goto err_put_pdev;
44
45 err = platform_device_add(pdev);
46 if (err)
47 goto err_put_pdev;
48
49 return;
50
51 err_put_pdev:
52 platform_device_put(pdev);
53
54 err_free_leds:
55 kfree(p);
56 }
57