Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 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 | |
Marc Zyngier | c625f76 | 2015-09-28 15:49:15 +0100 | [diff] [blame] | 17 | #include <linux/acpi.h> |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 18 | #include <linux/init.h> |
| 19 | #include <linux/of.h> |
Arnd Bergmann | 3d5a965 | 2013-03-19 15:38:50 +0100 | [diff] [blame] | 20 | #include <linux/clocksource.h> |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 21 | |
Daniel Lezcano | 2fcc112a | 2017-05-26 18:33:27 +0200 | [diff] [blame] | 22 | extern struct of_device_id __timer_of_table[]; |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 23 | |
Daniel Lezcano | 2fcc112a | 2017-05-26 18:33:27 +0200 | [diff] [blame] | 24 | static const struct of_device_id __timer_of_table_sentinel |
| 25 | __used __section(__timer_of_table_end); |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 26 | |
Daniel Lezcano | ba5d08c | 2017-05-26 17:40:46 +0200 | [diff] [blame] | 27 | void __init timer_probe(void) |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 28 | { |
| 29 | struct device_node *np; |
| 30 | const struct of_device_id *match; |
Daniel Lezcano | b7c4db8 | 2016-05-31 16:25:59 +0200 | [diff] [blame] | 31 | of_init_fn_1_ret init_func_ret; |
Daniel Lezcano | 2fcc112a | 2017-05-26 18:33:27 +0200 | [diff] [blame] | 32 | unsigned timers = 0; |
Daniel Lezcano | b7c4db8 | 2016-05-31 16:25:59 +0200 | [diff] [blame] | 33 | int ret; |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 34 | |
Daniel Lezcano | 2fcc112a | 2017-05-26 18:33:27 +0200 | [diff] [blame] | 35 | for_each_matching_node_and_match(np, __timer_of_table, &match) { |
Sebastian Hesselbarth | eeb93d0 | 2013-09-26 02:08:17 +0200 | [diff] [blame] | 36 | if (!of_device_is_available(np)) |
| 37 | continue; |
| 38 | |
Daniel Lezcano | b7c4db8 | 2016-05-31 16:25:59 +0200 | [diff] [blame] | 39 | init_func_ret = match->data; |
| 40 | |
| 41 | ret = init_func_ret(np); |
| 42 | if (ret) { |
Rob Herring | 469869d | 2017-07-18 16:42:53 -0500 | [diff] [blame] | 43 | pr_err("Failed to initialize '%pOF': %d\n", np, ret); |
Daniel Lezcano | b7c4db8 | 2016-05-31 16:25:59 +0200 | [diff] [blame] | 44 | continue; |
| 45 | } |
| 46 | |
Daniel Lezcano | 2fcc112a | 2017-05-26 18:33:27 +0200 | [diff] [blame] | 47 | timers++; |
Daniel Lezcano | b7c4db8 | 2016-05-31 16:25:59 +0200 | [diff] [blame] | 48 | } |
| 49 | |
Daniel Lezcano | 2fcc112a | 2017-05-26 18:33:27 +0200 | [diff] [blame] | 50 | timers += acpi_probe_device_table(timer); |
Marc Zyngier | c625f76 | 2015-09-28 15:49:15 +0100 | [diff] [blame] | 51 | |
Daniel Lezcano | 2fcc112a | 2017-05-26 18:33:27 +0200 | [diff] [blame] | 52 | if (!timers) |
| 53 | pr_crit("%s: no matching timers found\n", __func__); |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 54 | } |