include/linux/delay.h

   1 /*
   2  * SPDX-License-Identifier:     GPL-2.0+
   3  */
   4
   5 #ifndef _LINUX_DELAY_H
   6 #define _LINUX_DELAY_H
   7
   8 #include <linux/kernel.h>
   9
  10 void __udelay(unsigned long usec);
  11 void udelay(unsigned long usec);
  12
  13 static inline void mdelay(unsigned long msec)
  14 {
  15         while (msec--)
  16                 udelay(1000);
  17 }
  18
  19 static inline void ndelay(unsigned long nsec)
  20 {
  21         udelay(DIV_ROUND_UP(nsec, 1000));
  22 }
  23
  24 #endif /* defined(_LINUX_DELAY_H) */