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   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2
   3 #ifndef _LINUX_DELAY_H
   4 #define _LINUX_DELAY_H
   5
   6 #include <linux/kernel.h>
   7
   8 void __udelay(unsigned long usec);
   9 void udelay(unsigned long usec);
  10
  11 static inline void mdelay(unsigned long msec)
  12 {
  13         while (msec--)
  14                 udelay(1000);
  15 }
  16
  17 static inline void ndelay(unsigned long nsec)
  18 {
  19         udelay(DIV_ROUND_UP(nsec, 1000));
  20 }
  21
  22 #endif /* defined(_LINUX_DELAY_H) */