blob: 028075720334f9ecfa1048e92bb448b3d87fbc13 [file] [log] [blame]
Stephen Warrenae278a92012-11-19 16:41:20 -07001/*
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
Marc Zyngierc625f762015-09-28 15:49:15 +010017#include <linux/acpi.h>
Stephen Warrenae278a92012-11-19 16:41:20 -070018#include <linux/init.h>
19#include <linux/of.h>
Arnd Bergmann3d5a9652013-03-19 15:38:50 +010020#include <linux/clocksource.h>
Stephen Warrenae278a92012-11-19 16:41:20 -070021
Daniel Lezcano2fcc112a2017-05-26 18:33:27 +020022extern struct of_device_id __timer_of_table[];
Stephen Warrenae278a92012-11-19 16:41:20 -070023
Daniel Lezcano2fcc112a2017-05-26 18:33:27 +020024static const struct of_device_id __timer_of_table_sentinel
25 __used __section(__timer_of_table_end);
Stephen Warrenae278a92012-11-19 16:41:20 -070026
Daniel Lezcanoba5d08c2017-05-26 17:40:46 +020027void __init timer_probe(void)
Stephen Warrenae278a92012-11-19 16:41:20 -070028{
29 struct device_node *np;
30 const struct of_device_id *match;
Daniel Lezcanob7c4db82016-05-31 16:25:59 +020031 of_init_fn_1_ret init_func_ret;
Daniel Lezcano2fcc112a2017-05-26 18:33:27 +020032 unsigned timers = 0;
Daniel Lezcanob7c4db82016-05-31 16:25:59 +020033 int ret;
Stephen Warrenae278a92012-11-19 16:41:20 -070034
Daniel Lezcano2fcc112a2017-05-26 18:33:27 +020035 for_each_matching_node_and_match(np, __timer_of_table, &match) {
Sebastian Hesselbartheeb93d02013-09-26 02:08:17 +020036 if (!of_device_is_available(np))
37 continue;
38
Daniel Lezcanob7c4db82016-05-31 16:25:59 +020039 init_func_ret = match->data;
40
41 ret = init_func_ret(np);
42 if (ret) {
Rob Herring469869d2017-07-18 16:42:53 -050043 pr_err("Failed to initialize '%pOF': %d\n", np, ret);
Daniel Lezcanob7c4db82016-05-31 16:25:59 +020044 continue;
45 }
46
Daniel Lezcano2fcc112a2017-05-26 18:33:27 +020047 timers++;
Daniel Lezcanob7c4db82016-05-31 16:25:59 +020048 }
49
Daniel Lezcano2fcc112a2017-05-26 18:33:27 +020050 timers += acpi_probe_device_table(timer);
Marc Zyngierc625f762015-09-28 15:49:15 +010051
Daniel Lezcano2fcc112a2017-05-26 18:33:27 +020052 if (!timers)
53 pr_crit("%s: no matching timers found\n", __func__);
Stephen Warrenae278a92012-11-19 16:41:20 -070054}