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From: Zubair Lutfullah <zubair.lutfullah@gmail.com>
To: jic23@cam.ac.uk
Cc: linux-iio@vger.kernel.org, gregkh@linuxfoundation.org,
	linux-kernel@vger.kernel.org, koen@dominion.thruhere.net,
	zubair.lutfullah@gmail.com
Subject: [PATCH 12/21] IIO: ti_adc: Also clear threshold event when clearing overrun event
Date: Wed, 17 Jul 2013 18:26:41 +0100	[thread overview]
Message-ID: <1374082010-28095-13-git-send-email-zubair.lutfullah@gmail.com> (raw)
In-Reply-To: <1374082010-28095-1-git-send-email-zubair.lutfullah@gmail.com>

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@ti.com>
Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.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


  parent reply	other threads:[~2013-07-17 17:27 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-17 17:26 [PATCH 00/21] iio: TI-am335x-adc continuous mode Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 01/21] MFD: ti_tscadc: disable TSC control Zubair Lutfullah
2013-07-17 17:34   ` Greg KH
2013-07-17 17:26 ` [PATCH 02/21] IIO: ADC: ti_adc: Fix 1st sample read Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 03/21] iio: ti_am335x_adc: Added iio_voltageX_scale Zubair Lutfullah
2013-07-17 17:36   ` Greg KH
2013-07-17 17:26 ` [PATCH 04/21] input: ti_tsc: Enable shared IRQ for TSC Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 05/21] iio: input: am335x_adc: Add continuous mode to adc Zubair Lutfullah
2013-07-17 17:38   ` Greg KH
     [not found]     ` <CAExKytyQ23VXMVyRX9OHEQ8HZT5tFhKHSjhaH_-G_O1BVL91-A@mail.gmail.com>
2013-07-17 18:09       ` Greg KH
2013-07-18  8:08   ` Felipe Balbi
2013-07-17 17:26 ` [PATCH 06/21] MFD: ti_tscadc: ADC Clock check not required Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 07/21] iio: TI-am335x-adc: Cleanup Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 08/21] IIO: ti_adc: Handle set to clear IRQENABLE register properly Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 09/21] IIO: ti_adc: Handle set to clear IRQSTATUS " Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 10/21] IIO: ti_adc: Handle overrun before threshold event Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 11/21] iio: ti_adc: Avoid double " Zubair Lutfullah
2013-07-17 17:26 ` Zubair Lutfullah [this message]
2013-07-17 17:26 ` [PATCH 13/21] IO: ti_adc: Reset and clear overrun status before capture Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 14/21] IIO: ti_adc: Properly handle out of memory situation Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 15/21] IIO: ti_adc: Print error and handle short FIFO events Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 16/21] IIO: ti_adc: Fix allocation count of FIFO buffer Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 17/21] Revert "IIO: ti_adc: Correct wrong samples received on 1st read in continuous mode" Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 18/21] IIO: ti_adc: Fix capture operation during resume Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 19/21] iio: ti_amss5x adc Fix check_patch.pl issues Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 20/21] input: ti_am335x_tsc.c fix checkpatch.pl issues Zubair Lutfullah
2013-07-17 17:26 ` [PATCH 21/21] mfd: ti_am335x_tscadc.c " Zubair Lutfullah

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