Zepp-Hanzj commented on code in PR #19514:
URL: https://github.com/apache/nuttx/pull/19514#discussion_r3663183328


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arch/sim/src/sim/sim_rtc.c:
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Review Comment:
   Not directly. On SIM, clock_inittime() reads the RTC through the lower half 
installed by up_rtc_set_lowerhalf(), which is currently called from 
up_rtc_initialize(). Moving the whole up_rtc_initialize() call after 
clock_inittime() would leave the RTC lower half unset and initialize 
CLOCK_REALTIME to zero. Keeping it before clock_inittime() registers /dev/rtc0 
too early. This patch therefore keeps the lower-half setup before time 
synchronization and defers only the RTC character-device registration until 
up_initialize().



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