serdev: enable TTY port controller support by default

Amend the Serial device bus Kconfig entries to clarify that you most
likely also want to enable TTY port controller support, and make
SERIAL_DEV_CTRL_TTYPORT default to Y (when bus support is enabled).

Note that the TTY port controller is currently the only in-kernel
serdev controller implementation.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serdev/Kconfig b/drivers/tty/serdev/Kconfig
index cdc6b82..1dbc835 100644 (file)
--- a/drivers/tty/serdev/Kconfig
+++ b/drivers/tty/serdev/Kconfig
@@ -6,11 +6,19 @@ menuconfig SERIAL_DEV_BUS
        help
          Core support for devices connected via a serial port.
 
+         Note that you typically also want to enable TTY port controller support.
+
 if SERIAL_DEV_BUS
 
 config SERIAL_DEV_CTRL_TTYPORT
        bool "Serial device TTY port controller"
+       help
+         Say Y here if you want to use the Serial device bus with common TTY
+         drivers (e.g. serial drivers).
+
+         If unsure, say Y.
        depends on TTY
        depends on SERIAL_DEV_BUS != m
+       default y
 
 endif