imx: serial: use rational library function
for calculation of numerator and denominator
used in baud rate setting, use generic library function
for optimum settings.
Signed-off-by: Oskar Schirmer <os@emlix.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 3391ef0..641e800 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -833,6 +833,7 @@
bool "IMX serial port support"
depends on ARM && (ARCH_IMX || ARCH_MXC)
select SERIAL_CORE
+ select RATIONAL
help
If you have a machine based on a Motorola IMX CPU you
can enable its onboard serial port by enabling this option.