48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
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/* Copyright (c) 2009, 2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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/*
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* MSM architecture driver to control arm halt behavior
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*/
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#include <linux/module.h>
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#include <linux/debugfs.h>
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#include <linux/fs.h>
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#include <asm/system.h>
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static int set_nohalt(void *data, u64 val)
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{
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if (val)
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disable_hlt();
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else
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enable_hlt();
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return 0;
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}
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static int get_nohalt(void *data, u64 *val)
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{
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*val = (unsigned int)get_hlt();
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return 0;
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}
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DEFINE_SIMPLE_ATTRIBUTE(nohalt_ops, get_nohalt, set_nohalt, "%llu\n");
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static int __init init_hlt_debug(void)
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{
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debugfs_create_file("nohlt", 0600, NULL, NULL, &nohalt_ops);
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return 0;
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}
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late_initcall(init_hlt_debug);
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