pia35x: turn on pull-ups for UART RX lines

- required for UART2 (ttyO1)
  RX will be pulled low when RXEN is switched to off, this is causing
  a 0x00 byte to be received at the moment RXEN is activated again.
  RXEN = off => RX low => start bit + low signal => RXEN high
   => RX high (interpreted as stop bit(s))

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
omap: dss: add timings for Displaytech DT028 display

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
omap: dss: enable build of DT028 driver

- fix includes and struct initializations for 3.2
- (re)enable build of driver if selected

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
pia35x: enable support for DT028 based display expansion

- based on 2.6.37 patch

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
Merge branch 'kaco-3.2-ems'

* kaco-3.2-ems:
  pia35x: turn on pull-ups for UART RX lines