| 1 | /* |
| 2 | * Ralink SoC GPIO LED device support |
| 3 | * |
| 4 | * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License version 2 as published |
| 8 | * by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/init.h> |
| 12 | #include <linux/platform_device.h> |
| 13 | #include <linux/slab.h> |
| 14 | |
| 15 | #include <asm/mach-ralink/dev-gpio-leds.h> |
| 16 | |
| 17 | void __init ramips_register_gpio_leds(int id, unsigned num_leds, |
| 18 | struct gpio_led *leds) |
| 19 | { |
| 20 | struct platform_device *pdev; |
| 21 | struct gpio_led_platform_data pdata; |
| 22 | struct gpio_led *p; |
| 23 | int err; |
| 24 | |
| 25 | p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL); |
| 26 | if (!p) |
| 27 | return; |
| 28 | |
| 29 | memcpy(p, leds, num_leds * sizeof(*p)); |
| 30 | |
| 31 | pdev = platform_device_alloc("leds-gpio", id); |
| 32 | if (!pdev) |
| 33 | goto err_free_leds; |
| 34 | |
| 35 | memset(&pdata, 0, sizeof(pdata)); |
| 36 | pdata.num_leds = num_leds; |
| 37 | pdata.leds = p; |
| 38 | |
| 39 | err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); |
| 40 | if (err) |
| 41 | goto err_put_pdev; |
| 42 | |
| 43 | err = platform_device_add(pdev); |
| 44 | if (err) |
| 45 | goto err_put_pdev; |
| 46 | |
| 47 | return; |
| 48 | |
| 49 | err_put_pdev: |
| 50 | platform_device_put(pdev); |
| 51 | |
| 52 | err_free_leds: |
| 53 | kfree(p); |
| 54 | } |
| 55 | |
