tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#include <linux/acpi.h>
18#include <linux/init.h>
19#include <linux/of.h>
20#include <linux/clocksource.h>
21
22extern struct of_device_id __clksrc_of_table[];
23
24static const struct of_device_id __clksrc_of_table_sentinel
25 __used __section(__clksrc_of_table_end);
26
27void __init clocksource_probe(void)
28{
29 struct device_node *np;
30 const struct of_device_id *match;
31 of_init_fn_1 init_func;
32 unsigned clocksources = 0;
33
34 for_each_matching_node_and_match(np, __clksrc_of_table, &match) {
35 if (!of_device_is_available(np))
36 continue;
37
38 init_func = match->data;
39 init_func(np);
40 clocksources++;
41 }
42
43 clocksources += acpi_probe_device_table(clksrc);
44
45 if (!clocksources)
46 pr_crit("%s: no matching clocksources found\n", __func__);
47}