* Steven Rostedt <[email protected]> wrote:
> Ingo,
>
> I'm not sure if this is the correct fix, but it fixes a problem on one
> of our boards. The uart does't set the IIR register upon receiving an
> interrupt for transmit. Thus we get processes stuck waiting to send
> data out.
>
> This doesn't seem to be a problem on vanilla, and I'm not sure why.
> Perhaps the scheduling doesn't ever let the transmit buffer get full?
> Well I haven't look too much into the vanilla side.
>
> This patch forces the processing of the interrupt even if the iir
> doesn't show that there was an interrupt, iff the uart has been
> detected as buggy (which our board's uart is ) and the interrupt
> hasn't already handled it.
thx, applied.
Ingo
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