56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
|
||
|
|
*
|
||
|
|
* 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/acpi.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/of.h>
|
||
|
|
#include <linux/clocksource.h>
|
||
|
|
|
||
|
|
extern struct of_device_id __clksrc_of_table[];
|
||
|
|
|
||
|
|
static const struct of_device_id __clksrc_of_table_sentinel
|
||
|
|
__used __section(__clksrc_of_table_end);
|
||
|
|
|
||
|
|
void __init clocksource_probe(void)
|
||
|
|
{
|
||
|
|
struct device_node *np;
|
||
|
|
const struct of_device_id *match;
|
||
|
|
of_init_fn_1_ret init_func_ret;
|
||
|
|
unsigned clocksources = 0;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
for_each_matching_node_and_match(np, __clksrc_of_table, &match) {
|
||
|
|
if (!of_device_is_available(np))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
init_func_ret = match->data;
|
||
|
|
|
||
|
|
ret = init_func_ret(np);
|
||
|
|
if (ret) {
|
||
|
|
pr_err("Failed to initialize '%s': %d",
|
||
|
|
of_node_full_name(np), ret);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
clocksources++;
|
||
|
|
}
|
||
|
|
|
||
|
|
clocksources += acpi_probe_device_table(clksrc);
|
||
|
|
|
||
|
|
if (!clocksources)
|
||
|
|
pr_crit("%s: no matching clocksources found\n", __func__);
|
||
|
|
}
|