diff options
| author | Jonathan Cameron <jic23@kernel.org> | 2011-12-05 22:18:20 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-12-08 12:11:10 -0800 |
| commit | 78c32ed39e26ef3a65d94072c9a845eefe84d4d9 (patch) | |
| tree | 7d29ebf1f48100c53c58adb6ba4a6e472e23c5ff /drivers | |
| parent | 389ac488330d9946a0f7dd572acd790e41486a9e (diff) | |
staging:iio:adc:ad7606 remove buffer access for sysfs interfaces.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/iio/adc/ad7476.h | 5 | ||||
| -rw-r--r-- | drivers/staging/iio/adc/ad7476_core.c | 2 | ||||
| -rw-r--r-- | drivers/staging/iio/adc/ad7476_ring.c | 24 |
3 files changed, 1 insertions, 30 deletions
diff --git a/drivers/staging/iio/adc/ad7476.h b/drivers/staging/iio/adc/ad7476.h index 60142926565f..27f696c75cc4 100644 --- a/drivers/staging/iio/adc/ad7476.h +++ b/drivers/staging/iio/adc/ad7476.h @@ -50,14 +50,9 @@ enum ad7476_supported_device_ids { }; #ifdef CONFIG_IIO_BUFFER -int ad7476_scan_from_ring(struct iio_dev *indio_dev); int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev); void ad7476_ring_cleanup(struct iio_dev *indio_dev); #else /* CONFIG_IIO_BUFFER */ -static inline int ad7476_scan_from_ring(struct iio_dev *indio_dev) -{ - return 0; -} static inline int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev) diff --git a/drivers/staging/iio/adc/ad7476_core.c b/drivers/staging/iio/adc/ad7476_core.c index a42dd19e640f..be0297903c62 100644 --- a/drivers/staging/iio/adc/ad7476_core.c +++ b/drivers/staging/iio/adc/ad7476_core.c @@ -46,7 +46,7 @@ static int ad7476_read_raw(struct iio_dev *indio_dev, case 0: mutex_lock(&indio_dev->mlock); if (iio_buffer_enabled(indio_dev)) - ret = ad7476_scan_from_ring(indio_dev); + ret = -EBUSY; else ret = ad7476_scan_direct(st); mutex_unlock(&indio_dev->mlock); diff --git a/drivers/staging/iio/adc/ad7476_ring.c b/drivers/staging/iio/adc/ad7476_ring.c index ff0656a13445..4e298b2a05b2 100644 --- a/drivers/staging/iio/adc/ad7476_ring.c +++ b/drivers/staging/iio/adc/ad7476_ring.c @@ -20,30 +20,6 @@ #include "ad7476.h" -int ad7476_scan_from_ring(struct iio_dev *indio_dev) -{ - struct iio_buffer *ring = indio_dev->buffer; - int ret; - u8 *ring_data; - - ring_data = kmalloc(ring->access->get_bytes_per_datum(ring), - GFP_KERNEL); - if (ring_data == NULL) { - ret = -ENOMEM; - goto error_ret; - } - ret = ring->access->read_last(ring, ring_data); - if (ret) - goto error_free_ring_data; - - ret = (ring_data[0] << 8) | ring_data[1]; - -error_free_ring_data: - kfree(ring_data); -error_ret: - return ret; -} - /** * ad7476_ring_preenable() setup the parameters of the ring before enabling * |