linux-stable/arch/arm64/kernel/time.c
Geert Uytterhoeven d91771848f arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
The arm64 time code is not a clock provider, and just needs to call
of_clk_init().

Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>.

Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Will Deacon <will@kernel.org>
2020-02-12 17:26:38 +00:00

71 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Based on arch/arm/kernel/time.c
*
* Copyright (C) 1991, 1992, 1995 Linus Torvalds
* Modifications for ARM (C) 1994-2001 Russell King
* Copyright (C) 2012 ARM Ltd.
*/
#include <linux/clockchips.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/timex.h>
#include <linux/errno.h>
#include <linux/profile.h>
#include <linux/syscore_ops.h>
#include <linux/timer.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/clocksource.h>
#include <linux/of_clk.h>
#include <linux/acpi.h>
#include <clocksource/arm_arch_timer.h>
#include <asm/thread_info.h>
#include <asm/stacktrace.h>
#include <asm/paravirt.h>
unsigned long profile_pc(struct pt_regs *regs)
{
struct stackframe frame;
if (!in_lock_functions(regs->pc))
return regs->pc;
start_backtrace(&frame, regs->regs[29], regs->pc);
do {
int ret = unwind_frame(NULL, &frame);
if (ret < 0)
return 0;
} while (in_lock_functions(frame.pc));
return frame.pc;
}
EXPORT_SYMBOL(profile_pc);
void __init time_init(void)
{
u32 arch_timer_rate;
of_clk_init(NULL);
timer_probe();
tick_setup_hrtimer_broadcast();
arch_timer_rate = arch_timer_get_rate();
if (!arch_timer_rate)
panic("Unable to initialise architected timer.\n");
/* Calibrate the delay loop directly */
lpj_fine = arch_timer_rate / HZ;
pv_time_init();
}