[PATCH] iop: n2100: enable serial interrupt

[Lennert Buytenhek]

On Sun, Feb 14, 2010 at 11:53:25PM +0200, Aaro Koskinen wrote:

> Thecus N2100 has a jumper (J3/J4) to select whether the XINT1 interrupt
> line is connected to the second UHCI controller (position J3) or to
> the serial port UART (position J4). Currently, the kernel is hardcoded
> to assume the J3 position, and the serial port is always being used in
> polling mode.
> 
> The patch adds the IRQ autodetection flag for the serial port interrupt,
> and also marks it as shared (as the driver for the second UHCI controller
> will request the interrupt in any case). Now, when the jumper is set to
> the J4 position, the serial port will have an interrupt line, resulting
> in less CPU overhead and faster throughput.
> 
> Signed-off-by: Aaro Koskinen <aaro.koskinen at iki.fi>

Assuming that you've found this to actually work:

Acked-by: Lennert Buytenhek <buytenh at wantstofly.org>