| /* | |
| * Atheros AR71XX/AR724X/AR913X GPIO button support | |
| * | |
| * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> | |
| * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> | |
| * | |
| * This program is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License version 2 as published | |
| * by the Free Software Foundation. | |
| */ | |
| #include "linux/init.h" | |
| #include "linux/slab.h" | |
| #include <linux/platform_device.h> | |
| #include "dev-gpio-buttons.h" | |
| void __init ath79_register_gpio_keys_polled(int id, | |
| unsigned poll_interval, | |
| unsigned nbuttons, | |
| struct gpio_keys_button *buttons) | |
| { | |
| struct platform_device *pdev; | |
| struct gpio_keys_platform_data pdata; | |
| struct gpio_keys_button *p; | |
| int err; | |
| p = kmemdup(buttons, nbuttons * sizeof(*p), GFP_KERNEL); | |
| if (!p) | |
| return; | |
| pdev = platform_device_alloc("gpio-keys-polled", id); | |
| if (!pdev) | |
| goto err_free_buttons; | |
| memset(&pdata, 0, sizeof(pdata)); | |
| pdata.poll_interval = poll_interval; | |
| pdata.nbuttons = nbuttons; | |
| pdata.buttons = p; | |
| err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | |
| if (err) | |
| goto err_put_pdev; | |
| err = platform_device_add(pdev); | |
| if (err) | |
| goto err_put_pdev; | |
| return; | |
| err_put_pdev: | |
| platform_device_put(pdev); | |
| err_free_buttons: | |
| kfree(p); | |
| } |