From 9f57e068e01c14f34f69244e1f4a6c567d93cdfe Mon Sep 17 00:00:00 2001
From: Alison Schofield <amsfield22@gmail.com>
Date: Tue, 24 May 2016 12:19:49 -0700
Subject: [PATCH] iio: adc: ad7923: use iio helper function to guarantee direct
mode
Replace the code that guarantees the device stays in direct mode
with iio_device_claim_direct_mode() which does same.
Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Acked-by: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
drivers/iio/adc/ad7923.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c
index 45e29ccd824f2..ff444c19d7499 100644
--- a/drivers/iio/adc/ad7923.c
+++ b/drivers/iio/adc/ad7923.c
@@ -233,12 +233,11 @@ static int ad7923_read_raw(struct iio_dev *indio_dev,
switch (m) {
case IIO_CHAN_INFO_RAW:
- mutex_lock(&indio_dev->mlock);
- if (iio_buffer_enabled(indio_dev))
- ret = -EBUSY;
- else
- ret = ad7923_scan_direct(st, chan->address);
- mutex_unlock(&indio_dev->mlock);
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
+ ret = ad7923_scan_direct(st, chan->address);
+ iio_device_release_direct_mode(indio_dev);
if (ret < 0)
return ret;
--
GitLab