7253ddc6a3
The High Performance Direct Memory Access (HPDMA) controller is used to perform programmable data transfers between memory-mapped peripherals and memories (or between memories) via linked-lists. There are 3 instances of HPDMA on stm32mp251, using stm32-dma3 driver, with 16 channels per instance and with one interrupt per channel. Channels 0 to 7 are implemented with a FIFO of 8 bytes. Channels 8 to 11 are implemented with a FIFO of 32 bytes. Channels 12 to 15 are implemented with a FIFO of 128 bytes. Thanks to stm32-dma3 bindings, the user can ask for a channel with specific FIFO size. Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.