kismet: WARNING: unmet direct dependencies detected for SERIAL_OF_PLATFORM when selected by ECONET

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   86aa721820952b793a12fc6e5a01734186c0c238
commit: 35fb26f94dfa1b291086b84b2421f957214824d1 mips: Add EcoNet MIPS platform support
date:   2 months ago
config: mips-kismet-CONFIG_SERIAL_OF_PLATFORM-CONFIG_ECONET-0-0 (https://download.01.org/0day-ci/archive/20250729/202507291515.5EiVPN6M-lkp@xxxxxxxxx/config)
reproduce: (https://download.01.org/0day-ci/archive/20250729/202507291515.5EiVPN6M-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507291515.5EiVPN6M-lkp@xxxxxxxxx/

kismet warnings: (new ones prefixed by >>)
>> kismet: WARNING: unmet direct dependencies detected for SERIAL_OF_PLATFORM when selected by ECONET
   WARNING: unmet direct dependencies detected for SERIAL_OF_PLATFORM
     Depends on [n]: TTY [=n] && HAS_IOMEM [=y] && SERIAL_8250 [=n] && OF [=y]
     Selected by [y]:
     - ECONET [=y]

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