// 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; }