Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __ASM_GENERIC_DELAY_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __ASM_GENERIC_DELAY_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) /* Undefined functions to get compile-time errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) extern void __bad_udelay(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) extern void __bad_ndelay(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) extern void __udelay(unsigned long usecs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) extern void __ndelay(unsigned long nsecs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) extern void __const_udelay(unsigned long xloops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) extern void __delay(unsigned long loops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * The weird n/20000 thing suppresses a "comparison is always false due to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * limited range of data type" warning with non-const 8-bit arguments.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /* 0x10c7 is 2**32 / 1000000 (rounded up) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define udelay(n)							\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	({								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		if (__builtin_constant_p(n)) {				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 			if ((n) / 20000 >= 1)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 				 __bad_udelay();			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 			else						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 				__const_udelay((n) * 0x10c7ul);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		} else {						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 			__udelay(n);					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		}							\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	})
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) /* 0x5 is 2**32 / 1000000000 (rounded up) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define ndelay(n)							\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	({								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		if (__builtin_constant_p(n)) {				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 			if ((n) / 20000 >= 1)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 				__bad_ndelay();				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 			else						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 				__const_udelay((n) * 5ul);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		} else {						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 			__ndelay(n);					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		}							\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	})
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #endif /* __ASM_GENERIC_DELAY_H */