Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 250e27ee authored by Tero Kristo's avatar Tero Kristo Committed by Paul Walmsley
Browse files

ARM: OMAP2+: prcm: add omap_test_timeout to prcm-common.h 



Done in preparation to move cm/prm to drivers. These will still use
omap_test_timeout, but will not have access to common.h header under
mach-omap2 anymore.

Signed-off-by: default avatarTero Kristo <t-kristo@ti.com>
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
parent b21be7bc

arch/arm/mach-omap2/prcm-common.h

+20 −0
Original line number Diff line number Diff line
@@ -428,6 +428,26 @@ 
#define MAX_IOPAD_LATCH_TIME			100

# ifndef __ASSEMBLER__



/**

 * omap_test_timeout - busy-loop, testing a condition

 * @cond: condition to test until it evaluates to true

 * @timeout: maximum number of microseconds in the timeout

 * @index: loop index (integer)

 *

 * Loop waiting for @cond to become true or until at least @timeout

 * microseconds have passed.  To use, define some integer @index in the

 * calling code.  After running, if @index == @timeout, then the loop has

 * timed out.

 */

#define omap_test_timeout(cond, timeout, index)			\

({								\

	for (index = 0; index < timeout; index++) {		\

		if (cond)					\

			break;					\

		udelay(1);					\

	}							\

})



/**

 * struct omap_prcm_irq - describes a PRCM interrupt bit

 * @name: a short name describing the interrupt type, e.g. "wkup" or "io"