M7350/kernel/arch/arm/mach-msm/nohlt.c

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2024-09-09 08:52:07 +00:00
/* Copyright (c) 2009, 2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
/*
* MSM architecture driver to control arm halt behavior
*/
#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/fs.h>
#include <asm/system.h>
static int set_nohalt(void *data, u64 val)
{
if (val)
disable_hlt();
else
enable_hlt();
return 0;
}
static int get_nohalt(void *data, u64 *val)
{
*val = (unsigned int)get_hlt();
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(nohalt_ops, get_nohalt, set_nohalt, "%llu\n");
static int __init init_hlt_debug(void)
{
debugfs_create_file("nohlt", 0600, NULL, NULL, &nohalt_ops);
return 0;
}
late_initcall(init_hlt_debug);