| 1 | // SPDX-License-Identifier: GPL-2.0-only |
|---|---|
| 2 | /* |
| 3 | * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. |
| 4 | */ |
| 5 | |
| 6 | #include <linux/acpi.h> |
| 7 | #include <linux/init.h> |
| 8 | #include <linux/of.h> |
| 9 | #include <linux/clocksource.h> |
| 10 | |
| 11 | extern struct of_device_id __timer_of_table[]; |
| 12 | |
| 13 | static const struct of_device_id __timer_of_table_sentinel |
| 14 | __used __section("__timer_of_table_end"); |
| 15 | |
| 16 | void __init timer_probe(void) |
| 17 | { |
| 18 | struct device_node *np; |
| 19 | const struct of_device_id *match; |
| 20 | of_init_fn_1_ret init_func_ret; |
| 21 | unsigned timers = 0; |
| 22 | int ret; |
| 23 | |
| 24 | for_each_matching_node_and_match(np, __timer_of_table, &match) { |
| 25 | if (!of_device_is_available(device: np)) |
| 26 | continue; |
| 27 | |
| 28 | init_func_ret = match->data; |
| 29 | |
| 30 | ret = init_func_ret(np); |
| 31 | if (ret) { |
| 32 | if (ret != -EPROBE_DEFER) |
| 33 | pr_err("Failed to initialize '%pOF': %d\n", np, |
| 34 | ret); |
| 35 | continue; |
| 36 | } |
| 37 | |
| 38 | timers++; |
| 39 | } |
| 40 | |
| 41 | timers += acpi_probe_device_table(timer); |
| 42 | |
| 43 | if (!timers) |
| 44 | pr_crit("%s: no matching timers found\n", __func__); |
| 45 | } |
| 46 |