From 82796edca9ba014aa09cc158240c23b5b3f9326d Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 18 Jun 2012 18:33:54 +0200 Subject: [PATCH] staging:iio:adc:ad7793: 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 Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/adc/Kconfig | 3 +- drivers/staging/iio/adc/ad7793.c | 49 ++++---------------------------- 2 files changed, 7 insertions(+), 45 deletions(-) diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index ca466275024..4fcc4be044e 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -112,8 +112,7 @@ config AD7793 tristate "Analog Devices AD7792 AD7793 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 AD7792 and AD7793 SPI analog to digital converters (ADC). diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c index b36556fa295..2bb9f68d66a 100644 --- a/drivers/staging/iio/adc/ad7793.c +++ b/drivers/staging/iio/adc/ad7793.c @@ -21,9 +21,9 @@ #include #include #include -#include #include #include +#include #include "ad7793.h" @@ -407,41 +407,13 @@ static const struct iio_buffer_setup_ops ad7793_ring_setup_ops = { static int ad7793_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, - &ad7793_trigger_handler, - IRQF_ONESHOT, - indio_dev, - "ad7793_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 = &ad7793_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, + &ad7793_trigger_handler, &ad7793_ring_setup_ops); } static void ad7793_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); } /** @@ -959,24 +931,16 @@ static int __devinit ad7793_probe(struct spi_device *spi) if (ret) goto error_unreg_ring; - ret = iio_buffer_register(indio_dev, - indio_dev->channels, - indio_dev->num_channels); - if (ret) - goto error_remove_trigger; - ret = ad7793_setup(st); if (ret) - goto error_uninitialize_ring; + goto error_remove_trigger; ret = iio_device_register(indio_dev); if (ret) - goto error_uninitialize_ring; + goto error_remove_trigger; return 0; -error_uninitialize_ring: - iio_buffer_unregister(indio_dev); error_remove_trigger: ad7793_remove_trigger(indio_dev); error_unreg_ring: @@ -999,7 +963,6 @@ static int ad7793_remove(struct spi_device *spi) struct ad7793_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); - iio_buffer_unregister(indio_dev); ad7793_remove_trigger(indio_dev); ad7793_ring_cleanup(indio_dev); -- 2.43.2