diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad7192.c')
-rw-r--r-- | drivers/staging/iio/adc/ad7192.c | 59 |
1 files changed, 8 insertions, 51 deletions
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index 5eaeaf1f0ae8..22c3923d55eb 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -20,9 +20,9 @@ #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/buffer.h> -#include <linux/iio/kfifo_buf.h> #include <linux/iio/trigger.h> #include <linux/iio/trigger_consumer.h> +#include <linux/iio/triggered_buffer.h> #include "ad7192.h" @@ -146,7 +146,6 @@ struct ad7192_state { u32 mode; u32 conf; u32 scale_avail[8][2]; - long available_scan_masks[9]; u8 gpocon; u8 devid; /* @@ -538,45 +537,18 @@ static const struct iio_buffer_setup_ops ad7192_ring_setup_ops = { .postenable = &iio_triggered_buffer_postenable, .predisable = &iio_triggered_buffer_predisable, .postdisable = &ad7192_ring_postdisable, + .validate_scan_mask = &iio_validate_scan_mask_onehot, }; 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); } /** @@ -1012,7 +984,7 @@ static int __devinit ad7192_probe(struct spi_device *spi) struct ad7192_platform_data *pdata = spi->dev.platform_data; struct ad7192_state *st; struct iio_dev *indio_dev; - int ret, i , voltage_uv = 0; + int ret , voltage_uv = 0; if (!pdata) { dev_err(&spi->dev, "no platform data?\n"); @@ -1056,17 +1028,11 @@ static int __devinit ad7192_probe(struct spi_device *spi) indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = ad7192_channels; indio_dev->num_channels = ARRAY_SIZE(ad7192_channels); - indio_dev->available_scan_masks = st->available_scan_masks; if (st->devid == ID_AD7195) indio_dev->info = &ad7195_info; else indio_dev->info = &ad7192_info; - for (i = 0; i < indio_dev->num_channels; i++) - st->available_scan_masks[i] = (1 << i) | (1 << - indio_dev->channels[indio_dev->num_channels - 1]. - scan_index); - init_waitqueue_head(&st->wq_data_avail); ret = ad7192_register_ring_funcs_and_init(indio_dev); @@ -1077,23 +1043,15 @@ 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 +1074,6 @@ 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); |