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: Tero Kristo <t-kristo@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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@ -428,6 +428,26 @@
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#define MAX_IOPAD_LATCH_TIME 100
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# ifndef __ASSEMBLER__
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/**
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* omap_test_timeout - busy-loop, testing a condition
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* @cond: condition to test until it evaluates to true
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* @timeout: maximum number of microseconds in the timeout
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* @index: loop index (integer)
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*
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* Loop waiting for @cond to become true or until at least @timeout
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* microseconds have passed. To use, define some integer @index in the
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* calling code. After running, if @index == @timeout, then the loop has
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* timed out.
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*/
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#define omap_test_timeout(cond, timeout, index) \
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({ \
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for (index = 0; index < timeout; index++) { \
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if (cond) \
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break; \
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udelay(1); \
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} \
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})
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/**
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* struct omap_prcm_irq - describes a PRCM interrupt bit
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* @name: a short name describing the interrupt type, e.g. "wkup" or "io"
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