From 397b85dd860db633e73fd5c1daf995431d5f6f7e Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 18 Jun 2012 18:33:52 +0200 Subject: [PATCH] staging:iio:adc:ad7476: 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/ad7476_core.c | 9 ------- drivers/staging/iio/adc/ad7476_ring.c | 46 +++-------------------------------- 3 files changed, 5 insertions(+), 53 deletions(-) diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index bb6fffd..c5f5651 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -73,8 +73,7 @@ config AD7476 tristate "Analog Devices AD7475/6/7/8 AD7466/7/8 and AD7495 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 AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, AD7495 diff --git a/drivers/staging/iio/adc/ad7476_core.c b/drivers/staging/iio/adc/ad7476_core.c index be1c260..4d30a79 100644 --- a/drivers/staging/iio/adc/ad7476_core.c +++ b/drivers/staging/iio/adc/ad7476_core.c @@ -177,20 +177,12 @@ static int __devinit ad7476_probe(struct spi_device *spi) if (ret) goto error_disable_reg; - ret = iio_buffer_register(indio_dev, - st->chip_info->channel, - ARRAY_SIZE(st->chip_info->channel)); - if (ret) - goto error_cleanup_ring; - ret = iio_device_register(indio_dev); if (ret) goto error_ring_unregister; return 0; error_ring_unregister: - iio_buffer_unregister(indio_dev); -error_cleanup_ring: ad7476_ring_cleanup(indio_dev); error_disable_reg: if (!IS_ERR(st->reg)) @@ -210,7 +202,6 @@ static int ad7476_remove(struct spi_device *spi) struct ad7476_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); - iio_buffer_unregister(indio_dev); ad7476_ring_cleanup(indio_dev); if (!IS_ERR(st->reg)) { regulator_disable(st->reg); diff --git a/drivers/staging/iio/adc/ad7476_ring.c b/drivers/staging/iio/adc/ad7476_ring.c index 383611b..10f8b8d 100644 --- a/drivers/staging/iio/adc/ad7476_ring.c +++ b/drivers/staging/iio/adc/ad7476_ring.c @@ -15,8 +15,8 @@ #include #include -#include #include +#include #include "ad7476.h" @@ -52,51 +52,13 @@ done: return IRQ_HANDLED; } -static const struct iio_buffer_setup_ops ad7476_ring_setup_ops = { - .preenable = &iio_sw_buffer_preenable, - .postenable = &iio_triggered_buffer_postenable, - .predisable = &iio_triggered_buffer_predisable, -}; - int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev) { - struct ad7476_state *st = iio_priv(indio_dev); - int ret = 0; - - indio_dev->buffer = iio_kfifo_allocate(indio_dev); - if (!indio_dev->buffer) { - ret = -ENOMEM; - goto error_ret; - } - indio_dev->pollfunc - = iio_alloc_pollfunc(NULL, - &ad7476_trigger_handler, - IRQF_ONESHOT, - indio_dev, - "%s_consumer%d", - spi_get_device_id(st->spi)->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 = &ad7476_ring_setup_ops; - indio_dev->buffer->scan_timestamp = true; - - /* 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, NULL, + &ad7476_trigger_handler, NULL); } void ad7476_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