| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [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 | |
| 17 | #include <linux/acpi.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/of.h> |
| 20 | #include <linux/clocksource.h> |
| 21 | |
| 22 | extern struct of_device_id __timer_of_table[]; |
| 23 | |
| 24 | static const struct of_device_id __timer_of_table_sentinel |
| 25 | __used __section(__timer_of_table_end); |
| 26 | |
| 27 | void __init timer_probe(void) |
| 28 | { |
| 29 | struct device_node *np; |
| 30 | const struct of_device_id *match; |
| 31 | of_init_fn_1_ret init_func_ret; |
| 32 | unsigned timers = 0; |
| 33 | int ret; |
| 34 | |
| 35 | for_each_matching_node_and_match(np, __timer_of_table, &match) { |
| 36 | if (!of_device_is_available(np)) |
| 37 | continue; |
| 38 | |
| 39 | init_func_ret = match->data; |
| 40 | |
| 41 | ret = init_func_ret(np); |
| 42 | if (ret) { |
| 43 | pr_err("Failed to initialize '%pOF': %d\n", np, ret); |
| 44 | continue; |
| 45 | } |
| 46 | |
| 47 | timers++; |
| 48 | } |
| 49 | |
| 50 | timers += acpi_probe_device_table(timer); |
| 51 | |
| 52 | if (!timers) |
| 53 | pr_crit("%s: no matching timers found\n", __func__); |
| 54 | } |