tty: ar933x_uart: allow to build the driver as a module
authorGabor Juhos <juhosg@openwrt.org>
Thu, 29 Aug 2013 09:37:19 +0000 (11:37 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 30 Aug 2013 19:14:16 +0000 (12:14 -0700)
Change the SERIAL_AR933X Kconfig option from
'bool' to 'tristate' in order to allow to build
the driver as a module. Also extend the help text
of the option to reflect that.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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