[PATCH v2 29/30] staging: nvec: Add a udelay(100) to nvec_interrupt
Julian Andres Klode
jak at jak-linux.org
Tue Sep 27 17:01:07 UTC 2011
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 at jak-linux.org>
Acked-by: Marc Dietrich <marvin24 at gmx.de>
---
drivers/staging/nvec/nvec.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 8915344..07c8e09 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -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;
}
--
1.7.5.4
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