serial: Indicate fintek option may also be required for RS232 support
The current config comment for SERIAL_8250_FINTEK implies that this option is only needed when one wants to support RS485. As it turns out we also need to enable this option for RS232 support to function correctly on some variants. For example for variants such as the F71869AD attempting to use multiple RS232 ports simultaneously without this option enabled can result in data corruption. Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Link: https://lore.kernel.org/r/20230521075046.3539376-1-james.hilliard1@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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