[PATCH] serial: 8250_mid: Add missing dependency

From: Heikki Krogerus
Date: Thu Nov 12 2015 - 08:21:31 EST

8250_mid uses rational_best_approximation() function, so the
driver needs to select CONFIG_RATIONAL option.

This fixes build error when CONFIG_RATIONAL is not enabled:

drivers/built-in.o: In function `mid8250_set_termios':
8250_mid.c:(.text+0x10169a): undefined reference to `rational_best_approximation'

Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
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 e6f5e12..6412f14 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -373,6 +373,7 @@ config SERIAL_8250_MID
depends on SERIAL_8250 && PCI
select HSU_DMA if SERIAL_8250_DMA
+ select RATIONAL
Selecting this option will enable handling of the extra features
present on the UART found on Intel Medfield SOC and various other

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/