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Commit ad1d4358 authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: delay.h fix udelay and ndelay for 8 bit args 



Based on:
"asm-generic: delay.h fix udelay and ndelay for 8 bit args"
(sha1: a87e553f)

Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
parent 163e4074

arch/microblaze/include/asm/delay.h

+22 −6
Original line number Diff line number Diff line
@@ -61,13 +61,29 @@ extern inline void __udelay(unsigned int x) 
extern void __bad_udelay(void);		/* deliberately undefined */

extern void __bad_ndelay(void);		/* deliberately undefined */



#define udelay(n) (__builtin_constant_p(n) ? \

	((n) > __MAX_UDELAY ? __bad_udelay() : __udelay((n) * (19 * HZ))) : \

	__udelay((n) * (19 * HZ)))

#define udelay(n)						\

	({							\

		if (__builtin_constant_p(n)) {			\

			if ((n) / __MAX_UDELAY >= 1)		\

				__bad_udelay();			\

			else					\

				__udelay((n) * (19 * HZ));	\

		} else {					\

			__udelay((n) * (19 * HZ));		\

		}						\

	})



#define ndelay(n) (__builtin_constant_p(n) ? \

	((n) > __MAX_NDELAY ? __bad_ndelay() : __udelay((n) * HZ)) : \

	__udelay((n) * HZ))

#define ndelay(n)						\

	({							\

		if (__builtin_constant_p(n)) {			\

			if ((n) / __MAX_NDELAY >= 1)		\

				__bad_ndelay();			\

			else					\

				__udelay((n) * HZ);		\

		} else {					\

			__udelay((n) * HZ);			\

		}						\

	})



#define muldiv(a, b, c)		(((a)*(b))/(c))