1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #include <linux/acpi.h> 7*4882a593Smuzhiyun #include <linux/init.h> 8*4882a593Smuzhiyun #include <linux/of.h> 9*4882a593Smuzhiyun #include <linux/clocksource.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun extern struct of_device_id __timer_of_table[]; 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun static const struct of_device_id __timer_of_table_sentinel 14*4882a593Smuzhiyun __used __section("__timer_of_table_end"); 15*4882a593Smuzhiyun timer_probe(void)16*4882a593Smuzhiyunvoid __init timer_probe(void) 17*4882a593Smuzhiyun { 18*4882a593Smuzhiyun struct device_node *np; 19*4882a593Smuzhiyun const struct of_device_id *match; 20*4882a593Smuzhiyun of_init_fn_1_ret init_func_ret; 21*4882a593Smuzhiyun unsigned timers = 0; 22*4882a593Smuzhiyun int ret; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun for_each_matching_node_and_match(np, __timer_of_table, &match) { 25*4882a593Smuzhiyun if (!of_device_is_available(np)) 26*4882a593Smuzhiyun continue; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun init_func_ret = match->data; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun ret = init_func_ret(np); 31*4882a593Smuzhiyun if (ret) { 32*4882a593Smuzhiyun if (ret != -EPROBE_DEFER) 33*4882a593Smuzhiyun pr_err("Failed to initialize '%pOF': %d\n", np, 34*4882a593Smuzhiyun ret); 35*4882a593Smuzhiyun continue; 36*4882a593Smuzhiyun } 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun timers++; 39*4882a593Smuzhiyun } 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun timers += acpi_probe_device_table(timer); 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun if (!timers) 44*4882a593Smuzhiyun pr_crit("%s: no matching timers found\n", __func__); 45*4882a593Smuzhiyun } 46