1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
/*
* Copyright (C) 2016 Linaro.
* Viresh Kumar <viresh.kumar@linaro.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/err.h>
#include <linux/of.h>
#include <linux/platform_device.h>
static const struct of_device_id machines[] __initconst = {
{ .compatible = "samsung,exynos3250", },
{ .compatible = "samsung,exynos4210", },
{ .compatible = "samsung,exynos4212", },
{ .compatible = "samsung,exynos4412", },
{ .compatible = "samsung,exynos5250", },
#ifndef CONFIG_BL_SWITCHER
{ .compatible = "samsung,exynos5420", },
{ .compatible = "samsung,exynos5800", },
#endif
};
static int __init cpufreq_dt_platdev_init(void)
{
struct device_node *np = of_find_node_by_path("/");
if (!np)
return -ENODEV;
if (!of_match_node(machines, np))
return -ENODEV;
of_node_put(of_root);
return PTR_ERR_OR_ZERO(platform_device_register_simple("cpufreq-dt", -1,
NULL, 0));
}
device_initcall(cpufreq_dt_platdev_init);
|
