diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2015-10-13 18:10:29 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-10-25 13:55:32 +0000 |
| commit | 2d6ca60f328450ff5c7802d0857d12e3711348ce (patch) | |
| tree | 1e3f39956aef3539819429946cbabf429a7fa1a1 /drivers/iio/buffer/Kconfig | |
| parent | 670b19ae9bfdbcb4ce2c2ffb2ec1659a7f4a2074 (diff) | |
iio: Add a DMAengine framework based buffer
Add a generic fully device independent DMA buffer implementation that uses
the DMAegnine framework to perform the DMA transfers. This can be used by
converter drivers that whish to provide a DMA buffer for converters that
are connected to a DMA core that implements the DMAengine API.
Apart from allocating the buffer using iio_dmaengine_buffer_alloc() and
freeing it using iio_dmaengine_buffer_free() no additional converter driver
specific code is required when using this DMA buffer implementation.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/buffer/Kconfig')
| -rw-r--r-- | drivers/iio/buffer/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/iio/buffer/Kconfig b/drivers/iio/buffer/Kconfig index b2fda1afc03e..4ffd3db7817f 100644 --- a/drivers/iio/buffer/Kconfig +++ b/drivers/iio/buffer/Kconfig @@ -18,6 +18,17 @@ config IIO_BUFFER_DMA Should be selected by drivers that want to use the generic DMA buffer infrastructure. +config IIO_BUFFER_DMAENGINE + tristate + select IIO_BUFFER_DMA + help + Provides a bonding of the generic IIO DMA buffer infrastructure with the + DMAengine framework. This can be used by converter drivers with a DMA port + connected to an external DMA controller which is supported by the + DMAengine framework. + + Should be selected by drivers that want to use this functionality. + config IIO_KFIFO_BUF tristate "Industrial I/O buffering based on kfifo" help |