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: Tero Kristo <[email protected]> --- arch/arm/mach-omap2/prcm-common.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 0e841fd..e982598 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -429,6 +429,26 @@ # 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" * @offset: the bit shift of the interrupt inside the IRQ{ENABLE,STATUS} regs -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
