| 1 | |
| 2 | * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
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| 3 | *
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| 4 | * This program is free software; you can redistribute it and/or modify it
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| 5 | * under the terms and conditions of the GNU General Public License,
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| 6 | * version 2, as published by the Free Software Foundation.
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| 7 | *
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| 8 | * This program is distributed in the hope it will be useful, but WITHOUT
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| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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| 11 | * more details.
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| 12 | *
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| 13 | * You should have received a copy of the GNU General Public License
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| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 15 |
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| 16 |
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| 17 | #include <linux/acpi.h>
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| 18 | #include <linux/init.h>
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| 19 | #include <linux/of.h>
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| 20 | #include <linux/clocksource.h>
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| 21 |
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| 22 | extern struct of_device_id __timer_of_table[];
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| 23 |
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| 24 | static const struct of_device_id __timer_of_table_sentinel
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| 25 | __used __section(__timer_of_table_end);
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| 26 |
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| 27 | void __init timer_probe(void)
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| 28 | {
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| 29 | struct device_node *np;
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| 30 | const struct of_device_id *match;
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| 31 | of_init_fn_1_ret init_func_ret;
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| 32 | unsigned timers = 0;
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| 33 | int ret;
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| 34 |
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| 35 | for_each_matching_node_and_match(np, __timer_of_table, &match) {
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| 36 | if (!of_device_is_available(np))
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| 37 | continue;
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| 38 |
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| 39 | init_func_ret = match->data;
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| 40 |
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| 41 | ret = init_func_ret(np);
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| 42 | if (ret) {
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| 43 | pr_err("Failed to initialize '%s': %d\n",
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| 44 | of_node_full_name(np), ret);
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| 45 | continue;
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| 46 | }
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| 47 |
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| 48 | timers++;
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| 49 | }
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| 50 |
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| 51 | timers += acpi_probe_device_table(timer);
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| 52 |
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| 53 | if (!timers)
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| 54 | pr_crit("%s: no matching timers found\n", __func__);
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| 55 | }
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