kernel: Disable tick handling when !MULTITHREADING
The kernel timer subsystem isn't part of the !MULTITHREADING
environment (no threads to wake up, though in principle it should be
possible to support timeout callbacks with some work in the future).
Protect it against platforms that select this but still enable a timer
driver.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
diff --git a/include/drivers/system_timer.h b/include/drivers/system_timer.h
index bb48712..70fb5e0 100644
--- a/include/drivers/system_timer.h
+++ b/include/drivers/system_timer.h
@@ -65,8 +65,13 @@
#endif
extern s32_t _sys_idle_elapsed_ticks;
+
+#ifdef CONFIG_MULTITHREADING
#define _sys_clock_tick_announce() \
_nano_sys_clock_tick_announce(_sys_idle_elapsed_ticks)
+#else
+#define _sys_clock_tick_announce() /**/
+#endif
/**
* @brief Account for the tick due to the timer interrupt
