]> git.karo-electronics.de Git - karo-tx-linux.git/commitdiff
iio: adc: ad7476: use iio helper function to guarantee direct mode
authorAlison Schofield <amsfield22@gmail.com>
Tue, 24 May 2016 19:18:06 +0000 (12:18 -0700)
committerJonathan Cameron <jic23@kernel.org>
Sun, 29 May 2016 18:34:40 +0000 (19:34 +0100)
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/ad7476.c

index be85c2a0ad97feeedd9b0a4ac4d61548d236c57b..810c9a9fa62fc1951077192d342b84c5539269cb 100644 (file)
@@ -106,12 +106,11 @@ static int ad7476_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 = ad7476_scan_direct(st);
-               mutex_unlock(&indio_dev->mlock);
+               ret = iio_device_claim_direct_mode(indio_dev);
+               if (ret)
+                       return ret;
+               ret = ad7476_scan_direct(st);
+               iio_device_release_direct_mode(indio_dev);
 
                if (ret < 0)
                        return ret;