mirror of https://gitee.com/openkylin/linux.git
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* Copyright (c) 2016, Linaro Ltd. All rights reserved.
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* Daniel Lezcano <daniel.lezcano@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/init.h>
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#include <linux/of.h>
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#include <linux/clockchips.h>
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extern struct of_device_id __clkevt_of_table[];
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static const struct of_device_id __clkevt_of_table_sentinel
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__used __section(__clkevt_of_table_end);
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int __init clockevent_probe(void)
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{
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struct device_node *np;
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const struct of_device_id *match;
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of_init_fn_1_ret init_func;
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int ret, clockevents = 0;
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for_each_matching_node_and_match(np, __clkevt_of_table, &match) {
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if (!of_device_is_available(np))
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continue;
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init_func = match->data;
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ret = init_func(np);
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if (ret) {
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pr_warn("Failed to initialize '%s' (%d)\n",
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np->name, ret);
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continue;
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}
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clockevents++;
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}
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if (!clockevents) {
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pr_crit("%s: no matching clockevent found\n", __func__);
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return -ENODEV;
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}
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return 0;
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}
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