user/sven/linux.git/include/linux/iio/buffer-dmaengine.h, branch v4.9.5Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v4.9.52015-10-25T13:55:32Ziio: Add a DMAengine framework based buffer2015-10-25T13:55:32ZLars-Peter Clausenlars@metafoo.de2015-10-13T16:10:29Zurn:sha1:2d6ca60f328450ff5c7802d0857d12e3711348ce
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>