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Message-Id: <1464809154-14868-1-git-send-email-luisbg@osg.samsung.com> Date: Wed, 1 Jun 2016 20:25:54 +0100 From: Luis de Bethencourt <luisbg@....samsung.com> To: linux-kernel@...r.kernel.org Cc: gregkh@...uxfoundation.org, lars@...afoo.de, Michael.Hennerich@...log.com, jic23@...nel.org, knaack.h@....de, pmeerw@...erw.net, linux-iio@...r.kernel.org, devel@...verdev.osuosl.org, Luis de Bethencourt <luisbg@....samsung.com> Subject: [PATCH v2] staging: iio: ad5933: fix order of cycle conditions Correctly handle the settling time cycles value. The else branch is an impossible condition, > 1022 in the else branch of > 511. Flipping the order. Based on the Table 13 at the bottom of Page 25 of the Data Sheet: http://www.analog.com/media/en/technical-documentation/data-sheets/AD5933.pdf Signed-off-by: Luis de Bethencourt <luisbg@....samsung.com> Reviewed-by: Lars-Peter Clausen <lars@...afoo.de> --- drivers/staging/iio/impedance-analyzer/ad5933.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index 9f43976..170ac98 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -444,10 +444,10 @@ static ssize_t ad5933_store(struct device *dev, st->settling_cycles = val; /* 2x, 4x handling, see datasheet */ - if (val > 511) - val = (val >> 1) | (1 << 9); - else if (val > 1022) + if (val > 1022) val = (val >> 2) | (3 << 9); + else if (val > 511) + val = (val >> 1) | (1 << 9); dat = cpu_to_be16(val); ret = ad5933_i2c_write(st->client, -- 2.5.1
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