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https://github.com/brain-hackers/u-boot-brain
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5bc516ed66
Currently, mdelay() and udelay() are declared in include/common.h, while ndelay() in include/linux/compat.h. It would be nice to collect them into include/linux/delay.h like Linux. While we are here, fix the ndelay() implementation; I used the DIV_ROUND_UP() instead of (x)/1000 because it must wait *longer* than the given period of time. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
25 lines
394 B
C
25 lines
394 B
C
/*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _LINUX_DELAY_H
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#define _LINUX_DELAY_H
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#include <linux/kernel.h>
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void __udelay(unsigned long usec);
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void udelay(unsigned long usec);
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static inline void mdelay(unsigned long msec)
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{
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while (msec--)
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udelay(1000);
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}
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static inline void ndelay(unsigned long nsec)
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{
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udelay(DIV_ROUND_UP(nsec, 1000));
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}
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#endif /* defined(_LINUX_DELAY_H) */
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