1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Copyright 2012 Freescale Semiconductor, Inc.
 4 */
 5
 6#include <linux/err.h>
 7#include <linux/io.h>
 8#include <linux/jiffies.h>
 9#include <linux/spinlock.h>
10#include "clk.h"
11
12DEFINE_SPINLOCK(mxs_lock);
13
14int mxs_clk_wait(void __iomem *reg, u8 shift)
15{
16	unsigned long timeout = jiffies + msecs_to_jiffies(10);
17
18	while (readl_relaxed(reg) & (1 << shift))
19		if (time_after(jiffies, timeout))
20			return -ETIMEDOUT;
21
22	return 0;
23}