| Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2009, Code Aurora Forum. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | /* |
| 14 | * MSM architecture driver to control arm halt behavior |
| 15 | */ |
| 16 | |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/debugfs.h> |
| 19 | #include <linux/fs.h> |
| 20 | #include <asm/system.h> |
| 21 | |
| 22 | static int set_nohalt(void *data, u64 val) |
| 23 | { |
| 24 | if (val) |
| 25 | disable_hlt(); |
| 26 | else |
| 27 | enable_hlt(); |
| 28 | return 0; |
| 29 | } |
| 30 | |
| 31 | DEFINE_SIMPLE_ATTRIBUTE(nohalt_ops, NULL, set_nohalt, "%llu\n"); |
| 32 | |
| 33 | static int __init init_hlt_debug(void) |
| 34 | { |
| 35 | debugfs_create_file("nohlt", 0200, NULL, NULL, &nohalt_ops); |
| 36 | |
| 37 | return 0; |
| 38 | } |
| 39 | |
| 40 | late_initcall(init_hlt_debug); |