linux-kernel - [PATCH 12/21] IIO: ti_adc: Also clear threshold event when clearing overrun event

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Message-Id: <1374082010-28095-13-git-send-email-zubair.lutfullah@gmail.com>
Date:	Wed, 17 Jul 2013 18:26:41 +0100
From:	Zubair Lutfullah <zubair.lutfullah@...il.com>
To:	jic23@....ac.uk
Cc:	linux-iio@...r.kernel.org, gregkh@...uxfoundation.org,
	linux-kernel@...r.kernel.org, koen@...inion.thruhere.net,
	zubair.lutfullah@...il.com
Subject: [PATCH 12/21] IIO: ti_adc: Also clear threshold event when clearing overrun event

When an overrun occurs, the FIFO is cleared. If a FIFO threshold event

was pending, the data is now gone. Clear the threshold event when

handling an overrun (or underflow).

Signed-off-by: Russ Dill <Russ.Dill@...com>
Signed-off-by: Zubair Lutfullah <zubair.lutfullah@...il.com>
---
 drivers/iio/adc/ti_am335x_adc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index fcd414d..1e48799 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -178,7 +178,8 @@ static irqreturn_t tiadc_irq(int irq, void *private)
 
                 tiadc_writel(adc_dev, REG_IRQSTATUS,
                                 IRQENB_FIFO1OVRRUN |
-                                IRQENB_FIFO1UNDRFLW);
+                                IRQENB_FIFO1UNDRFLW |
+                                IRQENB_FIFO1THRES);
  
                 tiadc_writel(adc_dev, REG_CTRL,
                        (config | CNTRLREG_TSCSSENB));
-- 
1.7.9.5

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