blob: 2fe78ba990a0c7a62332a07e55bd99bb08238597 [file] [log] [blame] [edit]
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2012 Freescale Semiconductor, Inc.
*/
#include <linux/err.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/spinlock.h>
#include "clk.h"
DEFINE_SPINLOCK(mxs_lock);
int mxs_clk_wait(void __iomem *reg, u8 shift)
{
unsigned long timeout = jiffies + msecs_to_jiffies(10);
while (readl_relaxed(reg) & (1 << shift))
if (time_after(jiffies, timeout))
return -ETIMEDOUT;
return 0;
}