omap-serial: use mctrl_gpio helpers

[Greg KH]

On Thu, Apr 24, 2014 at 11:24:30AM +0200, yegorslists at googlemail.com wrote:
> This patch is based on Richard Genoud' patch adding generic GPIO support [1]
> and my patch adding get_direction() functionality to OMAP's GPIO driver [2].
> 
> So far RTS/DTR are working both as modem control outputs and RTS as RS-485 2-wire controller.
> 
> CTS/DSR/DSR/RI are generating interrupts.
> 
> Richard, Greg, what is the status of [1]? It seems like it will be available in 3.16 first?

Probably.