| /* |
| * 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); |
| } |