2 * Atheros AR71XX/AR724X/AR913X GPIO button support
4 * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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.
12 #include "linux/init.h"
13 #include "linux/slab.h"
14 #include <linux/platform_device.h>
16 #include "dev-gpio-buttons.h"
18 void __init ath79_register_gpio_keys_polled(int id,
19 unsigned poll_interval,
21 struct gpio_keys_button *buttons)
23 struct platform_device *pdev;
24 struct gpio_keys_platform_data pdata;
25 struct gpio_keys_button *p;
28 p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
32 memcpy(p, buttons, nbuttons * sizeof(*p));
34 pdev = platform_device_alloc("gpio-keys-polled", id);
36 goto err_free_buttons;
38 memset(&pdata, 0, sizeof(pdata));
39 pdata.poll_interval = poll_interval;
40 pdata.nbuttons = nbuttons;
43 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
47 err = platform_device_add(pdev);
54 platform_device_put(pdev);