On 06/06/2012 12:55 PM, Lars-Peter Clausen wrote:
> Use the new triggered buffer setup helper function to allocate and register
> buffer and pollfunc.
Same comment about the select IIO_TRIGGER
>
> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Acked-by: Jonathan Cameron <jic23@xxxxxxxxxx>
> ---
> drivers/staging/iio/adc/Kconfig | 1 +
> drivers/staging/iio/adc/ad7192.c | 47 ++++----------------------------------
> 2 files changed, 6 insertions(+), 42 deletions(-)
>
> diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
> index 2490dd2..8958fca 100644
> --- a/drivers/staging/iio/adc/Kconfig
> +++ b/drivers/staging/iio/adc/Kconfig
> @@ -137,6 +137,7 @@ config AD7192
> select IIO_BUFFER
> select IIO_KFIFO_BUF
> select IIO_TRIGGER
> + select IIO_TRIGGERED_BUFFER
> help
> Say yes here to build support for Analog Devices AD7190,
> AD7192 or AD7195 SPI analog to digital converters (ADC).
> diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
> index 5eaeaf1..548c8bf 100644
> --- a/drivers/staging/iio/adc/ad7192.c
> +++ b/drivers/staging/iio/adc/ad7192.c
> @@ -542,41 +542,13 @@ static const struct iio_buffer_setup_ops ad7192_ring_setup_ops = {
>
> static int ad7192_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,
> - &ad7192_trigger_handler,
> - IRQF_ONESHOT,
> - indio_dev,
> - "ad7192_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 = &ad7192_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,
> + &ad7192_trigger_handler, &ad7192_ring_setup_ops);
> }
>
> static void ad7192_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);
> }
>
> /**
> @@ -1077,23 +1049,15 @@ static int __devinit ad7192_probe(struct spi_device *spi)
> if (ret)
> goto error_ring_cleanup;
>
> - ret = iio_buffer_register(indio_dev,
> - indio_dev->channels,
> - indio_dev->num_channels);
> - if (ret)
> - goto error_remove_trigger;
> -
> ret = ad7192_setup(st);
> if (ret)
> - goto error_unreg_ring;
> + goto error_remove_trigger;
>
> ret = iio_device_register(indio_dev);
> if (ret < 0)
> - goto error_unreg_ring;
> + goto error_remove_trigger;
> return 0;
>
> -error_unreg_ring:
> - iio_buffer_unregister(indio_dev);
> error_remove_trigger:
> ad7192_remove_trigger(indio_dev);
> error_ring_cleanup:
> @@ -1116,7 +1080,6 @@ static int ad7192_remove(struct spi_device *spi)
> struct ad7192_state *st = iio_priv(indio_dev);
>
> iio_device_unregister(indio_dev);
> - iio_buffer_unregister(indio_dev);
> ad7192_remove_trigger(indio_dev);
> ad7192_ring_cleanup(indio_dev);
>
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