From: Jonathan Cameron <jic23@kernel.org>
To: linux-iio@vger.kernel.org, greg@kroah.com
Cc: lars@metafoo.de, Jonathan Cameron <jic23@kernel.org>
Subject: [PATCH 07/19] staging:iio:adc:ad7192 scrap read from buffer for sysfs access.
Date: Mon, 5 Dec 2011 22:18:18 +0000 [thread overview]
Message-ID: <1323123510-21388-8-git-send-email-jic23@kernel.org> (raw)
In-Reply-To: <1323123510-21388-1-git-send-email-jic23@kernel.org>
No known use case and complicates in kernel interface work.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
---
drivers/staging/iio/adc/ad7192.c | 22 +---------------------
1 files changed, 1 insertions(+), 21 deletions(-)
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 1b6ecc8..66cc507 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -453,25 +453,6 @@ out:
return ret;
}
-static int ad7192_scan_from_ring(struct ad7192_state *st, unsigned ch, int *val)
-{
- struct iio_buffer *ring = iio_priv_to_dev(st)->buffer;
- int ret;
- s64 dat64[2];
- u32 *dat32 = (u32 *)dat64;
-
- if (!(test_bit(ch, ring->scan_mask)))
- return -EBUSY;
-
- ret = ring->access->read_last(ring, (u8 *) &dat64);
- if (ret)
- return ret;
-
- *val = *dat32;
-
- return 0;
-}
-
static int ad7192_ring_preenable(struct iio_dev *indio_dev)
{
struct ad7192_state *st = iio_priv(indio_dev);
@@ -875,8 +856,7 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
case 0:
mutex_lock(&indio_dev->mlock);
if (iio_buffer_enabled(indio_dev))
- ret = ad7192_scan_from_ring(st,
- chan->scan_index, &smpl);
+ ret = -EBUSY;
else
ret = ad7192_read(st, chan->address,
chan->scan_type.realbits / 8, &smpl);
--
1.7.7.4
next prev parent reply other threads:[~2011-12-05 22:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1323123510-21388-1-git-send-email-jic23@kernel.org>
2011-12-05 22:18 ` [PATCH 01/19] staging:iio:buffer drop bpe field Jonathan Cameron
2011-12-05 22:18 ` [PATCH 02/19] staging:iio: remove userspace access to bytes per datum Jonathan Cameron
2011-12-05 22:18 ` [PATCH 04/19] staging:iio: scrap scan_count and ensure all drivers use active_scan_mask Jonathan Cameron
2011-12-05 22:18 ` Jonathan Cameron [this message]
2011-12-05 22:18 ` [PATCH 12/19] staging:iio:adc:ad7887 stop reading from buffer for sysfs access Jonathan Cameron
2011-12-05 22:18 ` [PATCH 15/19] staging:iio:ring_sw don't provide read last function Jonathan Cameron
2011-12-05 22:18 ` [PATCH 17/19] staging:iio:buffer scrap to_iio_buffer as it no longer has meaning Jonathan Cameron
2011-12-05 22:18 ` [PATCH 18/19] staging:iio:buffer struct iio_buffer doesn't need an indio_dev pointer Jonathan Cameron
2011-12-05 22:18 ` [PATCH 19/19] staging:iio:buffer.h update struct buffer docs Jonathan Cameron
2011-12-08 20:14 ` [PATCH 00/19] staging:iio:buffer clean ups Greg KH
2011-12-10 14:00 ` Jonathan Cameron
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