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clock: Remove CONFIG_TICKLESS_KERNEL_TIME_UNIT_IN_MICRO_SECS

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This was only used in a few places just to indirect the already
perfectly valid SYS_CLOCK_TICKS_PER_SEC value.  There's no reason for
these to ever have been kconfig units, and in fact the distinction
appears to have introduced a hidden/untested bug in the power
subsystem (the two variables were used interchangably, but they were
defined in reciprocal units!).

Just use "ticks" as our time unit pervasively, and clarify the docs to
explain that.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This commit is contained in:
Andy Ross 2018-09-19 11:08:19 -07:00 • committed by Anas Nashif
commit 393ec71ec3
4 changed files with 5 additions and 20 deletions
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4
include/sys_clock.h
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@ -28,11 +28,7 @@ extern "C" {
static inline int sys_clock_ticks_per_sec(void)
{
#ifdef CONFIG_TICKLESS_KERNEL
return 1000000 / (CONFIG_TICKLESS_KERNEL_TIME_UNIT_IN_MICRO_SECS);
#else
return CONFIG_SYS_CLOCK_TICKS_PER_SEC;
#endif
}
#ifdef CONFIG_TICKLESS_KERNEL