[RFC] GPIO-based flow control in the cpm_uart driver

[David Brownell]

On Tuesday 15 April 2008, Laurent Pinchart wrote:
> Or maybe some kind of gpio_set_option() with flags specific to the 
> controller ? This could be used to enable open-drain outputs or internal 
> pull-ups for instance.

That presumes that the pin config is associated with the GPIO
controller, rather than being an independent modules...

In the cases that a platform has such an association, there
should be no problem just using a platform-specific code to
do the relevant magic.

- Dave