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staging: nvec: Add a udelay(100) to nvec_interrupt 

As the comment indicates, adding that udelay seems to
improve the stability of the communication, although
it is not known why this is the case.

Signed-off-by: Julian Andres Klode <jak@jak-linux.org>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Julian Andres Klode 2011-09-27 19:01:07 +02:00 committed by Greg Kroah-Hartman
parent 12b5a55d72
commit de839b8f06
1 changed files with 9 additions and 0 deletions
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9
drivers/staging/nvec/nvec.c
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@ -656,6 +656,15 @@ static irqreturn_t nvec_interrupt(int irq, void *dev)
status & RCVD ? " RCVD" : "",
status & RNW ? " RNW" : "");
/*
* TODO: A correct fix needs to be found for this.
*
* We experience less incomplete messages with this delay than without
* it, but we don't know why. Help is appreciated.
*/
udelay(100);
return IRQ_HANDLED;
}