linux-kernel - [PATCH 3.10 062/250] staging: iio: ad7606: fix improper setting of oversampling pins

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Date:   Thu,  8 Jun 2017 00:57:28 +0200
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     Eva Rachel Retuya <eraretuya@...il.com>,
        Jonathan Cameron <jic23@...nel.org>, Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 062/250] staging: iio: ad7606: fix improper setting of oversampling pins

From: Eva Rachel Retuya <eraretuya@...il.com>

commit b321a38d2407c7e425c54bc09be909a34e49f740 upstream.

The oversampling ratio is controlled using the oversampling pins,
OS [2:0] with OS2 being the MSB control bit, and OS0 the LSB control
bit.

The gpio connected to the OS2 pin is not being set correctly, only OS0
and OS1 pins are being set. Fix the typo to allow proper control of the
oversampling pins.

Signed-off-by: Eva Rachel Retuya <eraretuya@...il.com>
Fixes: b9618c0 ("staging: IIO: ADC: New driver for AD7606/AD7606-6/AD7606-4")
Acked-by: Lars-Peter Clausen <lars@...afoo.de>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Willy Tarreau <w@....eu>
---
 drivers/staging/iio/adc/ad7606_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index d104b43..fa763dd 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -185,7 +185,7 @@ static ssize_t ad7606_store_oversampling_ratio(struct device *dev,
 	mutex_lock(&indio_dev->mlock);
 	gpio_set_value(st->pdata->gpio_os0, (ret >> 0) & 1);
 	gpio_set_value(st->pdata->gpio_os1, (ret >> 1) & 1);
-	gpio_set_value(st->pdata->gpio_os1, (ret >> 2) & 1);
+	gpio_set_value(st->pdata->gpio_os2, (ret >> 2) & 1);
 	st->oversampling = lval;
 	mutex_unlock(&indio_dev->mlock);
 
-- 
2.8.0.rc2.1.gbe9624a