From 74ed964931b1be634bce199ac854dc4ed76679b5 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 18 Jun 2012 18:33:53 +0200 Subject: [PATCH] staging:iio:adc:ad7606: Use new triggered buffer setup helper function Use the new triggered buffer setup helper function to allocate and register buffer and pollfunc. Also as part of the conversion drop scan_timestamp being enabled by default, since it is a left over of an earlier cleanup. Signed-off-by: Lars-Peter Clausen Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/adc/Kconfig | 3 +-- drivers/staging/iio/adc/ad7606_core.c | 9 ------- drivers/staging/iio/adc/ad7606_ring.c | 46 ++++------------------------------- 3 files changed, 6 insertions(+), 52 deletions(-) diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index c5f5651..ca46627 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -25,8 +25,7 @@ config AD7606 tristate "Analog Devices AD7606 ADC driver" depends on GPIOLIB select IIO_BUFFER - select IIO_TRIGGER - select IIO_KFIFO_BUF + select IIO_TRIGGERED_BUFFER help Say yes here to build support for Analog Devices: ad7606, ad7606-6, ad7606-4 analog to digital converters (ADC). diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c index a13afff..ccb97fe 100644 --- a/drivers/staging/iio/adc/ad7606_core.c +++ b/drivers/staging/iio/adc/ad7606_core.c @@ -533,20 +533,12 @@ struct iio_dev *ad7606_probe(struct device *dev, int irq, if (ret) goto error_free_irq; - 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 indio_dev; error_unregister_ring: - iio_buffer_unregister(indio_dev); - -error_cleanup_ring: ad7606_ring_cleanup(indio_dev); error_free_irq: @@ -571,7 +563,6 @@ int ad7606_remove(struct iio_dev *indio_dev, int irq) struct ad7606_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); - iio_buffer_unregister(indio_dev); ad7606_ring_cleanup(indio_dev); free_irq(irq, indio_dev); diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c index 24ce8fc..f15afe4 100644 --- a/drivers/staging/iio/adc/ad7606_ring.c +++ b/drivers/staging/iio/adc/ad7606_ring.c @@ -13,8 +13,8 @@ #include #include -#include #include +#include #include "ad7606.h" @@ -91,54 +91,18 @@ done: kfree(buf); } -static const struct iio_buffer_setup_ops ad7606_ring_setup_ops = { - .preenable = &iio_sw_buffer_preenable, - .postenable = &iio_triggered_buffer_postenable, - .predisable = &iio_triggered_buffer_predisable, -}; - int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev) { struct ad7606_state *st = iio_priv(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(&ad7606_trigger_handler_th_bh, - &ad7606_trigger_handler_th_bh, - 0, - indio_dev, - "%s_consumer%d", - indio_dev->name, - 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 = &ad7606_ring_setup_ops; - indio_dev->buffer->scan_timestamp = true; INIT_WORK(&st->poll_work, &ad7606_poll_bh_to_ring); - /* 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, + &ad7606_trigger_handler_th_bh, &ad7606_trigger_handler_th_bh, + NULL); } void ad7606_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); } -- 2.7.4