diff options
| author |   Lars-Peter Clausen <lars@metafoo.de> | 2012-06-18 18:33:49 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-18 17:26:09 -0700 |
| commit | 90032e4e9cc40e2933259190b670d70ddd149e68 (patch) | |
| tree | 92bd743b87aa7d722eba306790155143e08fa129 /drivers/iio | |
| parent | iio: Add helper function for initializing triggered buffers (diff) | |
| download | linux-dev-90032e4e9cc40e2933259190b670d70ddd149e68.tar.xz linux-dev-90032e4e9cc40e2933259190b670d70ddd149e68.zip | |
iio:adc:at91: Use new triggered buffer setup helper
Use the new triggered buffer setup helper function to allocate and register
buffer and pollfunc.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/iio/adc/at91_adc.c | 51 |
2 files changed, 5 insertions, 49 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 9a0df8123cc4..4f7f584cfd61 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -7,8 +7,7 @@ config AT91_ADC tristate "Atmel AT91 ADC" depends on ARCH_AT91 select IIO_BUFFER - select IIO_KFIFO_BUF - select IIO_TRIGGER + select IIO_TRIGGERED_BUFFER select SYSFS help Say yes here to build support for Atmel AT91 ADC. diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index f18a95d80255..6a084695b77e 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -26,9 +26,9 @@ #include <linux/iio/iio.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 <mach/at91_adc.h> @@ -318,58 +318,15 @@ static void at91_adc_trigger_remove(struct iio_dev *idev) } } -static const struct iio_buffer_setup_ops at91_adc_buffer_ops = { - .preenable = &iio_sw_buffer_preenable, - .postenable = &iio_triggered_buffer_postenable, - .predisable = &iio_triggered_buffer_predisable, -}; - static int at91_adc_buffer_init(struct iio_dev *idev) { - int ret; - - idev->buffer = iio_kfifo_allocate(idev); - if (!idev->buffer) { - ret = -ENOMEM; - goto error_ret; - } - - idev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, - &at91_adc_trigger_handler, - IRQF_ONESHOT, - idev, - "%s-consumer%d", - idev->name, - idev->id); - if (idev->pollfunc == NULL) { - ret = -ENOMEM; - goto error_pollfunc; - } - - idev->setup_ops = &at91_adc_buffer_ops; - idev->modes |= INDIO_BUFFER_TRIGGERED; - - ret = iio_buffer_register(idev, - idev->channels, - idev->num_channels); - if (ret) - goto error_register; - - return 0; - -error_register: - iio_dealloc_pollfunc(idev->pollfunc); -error_pollfunc: - iio_kfifo_free(idev->buffer); -error_ret: - return ret; + return iio_triggered_buffer_setup(idev, &iio_pollfunc_store_time, + &at91_adc_trigger_handler, NULL); } static void at91_adc_buffer_remove(struct iio_dev *idev) { - iio_buffer_unregister(idev); - iio_dealloc_pollfunc(idev->pollfunc); - iio_kfifo_free(idev->buffer); + iio_triggered_buffer_cleanup(idev); } static int at91_adc_read_raw(struct iio_dev *idev, |