staging:iio:adc:ad7887: Use new triggered buffer setup helper function

Use the new triggered buffer setup helper function to allocate and register
buffer and pollfunc.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index 4fcc4be..e3fdb84 100644 (file)
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -86,8 +86,7 @@ config AD7887
        tristate "Analog Devices AD7887 ADC driver"
        depends on SPI
        select IIO_BUFFER
-       select IIO_KFIFO_BUF
-       select IIO_TRIGGER
+       select IIO_TRIGGERED_BUFFER
        help
          Say yes here to build support for Analog Devices
          AD7887 SPI analog to digital converter (ADC).

diff --git a/drivers/staging/iio/adc/ad7887_core.c b/drivers/staging/iio/adc/ad7887_core.c
index 7186074..397b849 100644 (file)
--- a/drivers/staging/iio/adc/ad7887_core.c
+++ b/drivers/staging/iio/adc/ad7887_core.c
@@ -201,20 +201,12 @@ static int __devinit ad7887_probe(struct spi_device *spi)
        if (ret)
                goto error_disable_reg;
 
-       ret = iio_buffer_register(indio_dev,
-                                 indio_dev->channels,
-                                 indio_dev->num_channels);
-       if (ret)
-               goto error_cleanup_ring;
-
        ret = iio_device_register(indio_dev);
        if (ret)
                goto error_unregister_ring;
 
        return 0;
 error_unregister_ring:
-       iio_buffer_unregister(indio_dev);
-error_cleanup_ring:
        ad7887_ring_cleanup(indio_dev);
 error_disable_reg:
        if (!IS_ERR(st->reg))
@@ -233,7 +225,6 @@ static int ad7887_remove(struct spi_device *spi)
        struct ad7887_state *st = iio_priv(indio_dev);
 
        iio_device_unregister(indio_dev);
-       iio_buffer_unregister(indio_dev);
        ad7887_ring_cleanup(indio_dev);
        if (!IS_ERR(st->reg)) {
                regulator_disable(st->reg);

diff --git a/drivers/staging/iio/adc/ad7887_ring.c b/drivers/staging/iio/adc/ad7887_ring.c
index fd91384..1c406da 100644 (file)
--- a/drivers/staging/iio/adc/ad7887_ring.c
+++ b/drivers/staging/iio/adc/ad7887_ring.c
@@ -14,8 +14,8 @@
 
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
-#include <linux/iio/kfifo_buf.h>
 #include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
 
 #include "ad7887.h"
 
@@ -112,38 +112,11 @@ static const struct iio_buffer_setup_ops ad7887_ring_setup_ops = {
 
 int ad7887_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 {
-       int ret;
-
-       indio_dev->buffer = iio_kfifo_allocate(indio_dev);
-       if (!indio_dev->buffer) {
-               ret = -ENOMEM;
-               goto error_ret;
-       }
-       indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
-                                                &ad7887_trigger_handler,
-                                                IRQF_ONESHOT,
-                                                indio_dev,
-                                                "ad7887_consumer%d",
-                                                indio_dev->id);
-       if (indio_dev->pollfunc == NULL) {
-               ret = -ENOMEM;
-               goto error_deallocate_kfifo;
-       }
-       /* Ring buffer functions - here trigger setup related */
-       indio_dev->setup_ops = &ad7887_ring_setup_ops;
-
-       /* Flag that polled ring buffering is possible */
-       indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
-       return 0;
-
-error_deallocate_kfifo:
-       iio_kfifo_free(indio_dev->buffer);
-error_ret:
-       return ret;
+       return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+                       &ad7887_trigger_handler, &ad7887_ring_setup_ops);
 }
 
 void ad7887_ring_cleanup(struct iio_dev *indio_dev)
 {
-       iio_dealloc_pollfunc(indio_dev->pollfunc);
-       iio_kfifo_free(indio_dev->buffer);
+       iio_triggered_buffer_cleanup(indio_dev);
 }