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serial: 8250: Enable 16550A variants by default on non-x86 

Some embedded devices still use these serial ports; make sure they're
still enabled by default on architectures more likely to have them, to
avoid rendering someone's console unavailable.

Reported-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reported-by: Maxim Kochetkov <fido_max@inbox.ru>
Fixes: dc56ecb81a ("serial: 8250: Support disabling mdelay-filled probes of 16550A variants")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Link: https://lore.kernel.org/r/a20b5fb7dd295cfb48160eecf4bdebd76332d67d.1590509426.git.josh@joshtriplett.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Josh Triplett 2020-05-26 09:13:57 -07:00 committed by Greg Kroah-Hartman
parent 24eb2377f9
commit 15a3f03d5e
1 changed files with 1 additions and 0 deletions
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1
drivers/tty/serial/8250/Kconfig
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@ -63,6 +63,7 @@ config SERIAL_8250_PNP
config SERIAL_8250_16550A_VARIANTS
bool "Support for variants of the 16550A serial port"
depends on SERIAL_8250
default !X86
help
The 8250 driver can probe for many variants of the venerable 16550A
serial port. Doing so takes additional time at boot.