[PATCH] atmel_serial: RS485: receiving enabled when sending data

[Alan Cox]

> atmel_serial: RS485: receiving enabled when sending data
> 
> By default the atmel_serial driver in RS485 mode disables receiving data until
> all data in the send buffer has been sent. This flag allows to receive data
> even whilst sending data.
> 
> Signed-off-by: Bernhard Roth <br at pwrnet.de> 
> Signed-off-by: Claudio Scordino <claudio at evidence.eu.com>

Acked-by: Alan Cox <alan at linux.intel.com>

(although when we have people having a serious meta discussion about four
 spaces, or a tab or neither rather than functionality I despair)

This is sensible functionality and relevant to various interfaces so
makes sense.