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From: "Stefan Brüns" <stefan.bruens@rwth-aachen.de>
To: <linux-iio@vger.kernel.org>
Cc: "Peter Meerwald-Stadler" <pmeerw@pmeerw.net>,
	"Stefan Brüns" <stefan.bruens@rwth-aachen.de>,
	"Maciej Purski" <m.purski@samsung.com>,
	linux-kernel@vger.kernel.org, "Andrew F . Davis" <afd@ti.com>,
	"Lars-Peter Clausen" <lars@metafoo.de>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"Hartmut Knaack" <knaack.h@gmx.de>
Subject: [PATCH v2 6/7] iio: adc: ina2xx: Align timestamp with conversion ready flag
Date: Thu, 21 Dec 2017 19:31:37 +0100	[thread overview]
Message-ID: <78c52a18-e747-4661-963c-d06e05631eda@rwthex-w2-a.rwth-ad.de> (raw)
In-Reply-To: <20171221183138.361-1-stefan.bruens@rwth-aachen.de>

As the timestamp is no longer (ab-)used to measure the function run time,
it can be taken at the correct time, i.e. when the conversion has finished.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
---

Changes in v2: None

 drivers/iio/adc/ina2xx-adc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c
index 415e53b5c0a6..b7407ac91b59 100644
--- a/drivers/iio/adc/ina2xx-adc.c
+++ b/drivers/iio/adc/ina2xx-adc.c
@@ -706,8 +706,6 @@ static int ina2xx_work_buffer(struct iio_dev *indio_dev)
 	s64 time;
 	unsigned int alert;
 
-	time = iio_get_time_ns(indio_dev);
-
 	/*
 	 * Because the timer thread and the chip conversion clock
 	 * are asynchronous, the period difference will eventually
@@ -736,6 +734,8 @@ static int ina2xx_work_buffer(struct iio_dev *indio_dev)
 
 		} while (!alert);
 
+	time = iio_get_time_ns(indio_dev);
+
 	/*
 	 * Single register reads: bulk_read will not work with ina226/219
 	 * as there is no auto-increment of the register pointer.
-- 
2.15.1

  parent reply	other threads:[~2017-12-21 18:32 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20171221183138.361-1-stefan.bruens@rwth-aachen.de>
2017-12-21 18:31 ` [PATCH v2 1/7] iio: adc: ina2xx: Remove bogus cast for data argument Stefan Brüns
2017-12-29 17:46   ` Jonathan Cameron
2017-12-21 18:31 ` [PATCH v2 2/7] iio: adc: ina2xx: Clarify size requirement for data buffer Stefan Brüns
2017-12-21 18:31 ` [PATCH v2 3/7] iio: adc: ina2xx: Remove unneeded dummy read to clear CNVR flag Stefan Brüns
2017-12-21 18:31 ` [PATCH v2 4/7] iio: adc: ina2xx: Do not udelay for several seconds Stefan Brüns
2017-12-21 18:31 ` [PATCH v2 5/7] iio: adc: ina2xx: Use a monotonic clock for delay calculation Stefan Brüns
2017-12-29 17:48   ` Jonathan Cameron
2017-12-31 19:55     ` [PATCH v3 " Stefan Brüns
2018-01-01  1:24     ` [PATCH v4 " Stefan Brüns
2018-01-01  9:30       ` Jonathan Cameron
2017-12-21 18:31 ` Stefan Brüns [this message]
2017-12-29 17:49   ` [PATCH v2 6/7] iio: adc: ina2xx: Align timestamp with conversion ready flag Jonathan Cameron
2017-12-21 18:31 ` [PATCH v2 7/7] iio: adc: ina2xx: Actually align the loop with the " Stefan Brüns
2017-12-29 17:52   ` Jonathan Cameron

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