@@ -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
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> --- arch/arm/mach-omap2/prcm-common.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)