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

From: Josh Triplett
Date: Tue May 26 2020 - 04:40:14 EST

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.

Fixes: dc56ecb81a0a ("serial: 8250: Support disabling mdelay-filled probes of 16550A variants")
Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>

Based on user reports from embedded devices that need these variants.

drivers/tty/serial/8250/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index af0688156dd0..8195a31519ea 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -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
The 8250 driver can probe for many variants of the venerable 16550A
serial port. Doing so takes additional time at boot.