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