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