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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 config SERIAL_8250_16550A_VARIANTS
bool "Support for variants of the 16550A serial port" bool "Support for variants of the 16550A serial port"
depends on SERIAL_8250 depends on SERIAL_8250
default !X86
help help
The 8250 driver can probe for many variants of the venerable 16550A The 8250 driver can probe for many variants of the venerable 16550A
serial port. Doing so takes additional time at boot. serial port. Doing so takes additional time at boot.