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The existing function k3_udma_glue_request_tx_chn() supports requesting a TX DMA channel by its name. Add a new function to request TX DMA channel for a given thread ID, named k3_udma_glue_request_tx_chn_for_thread_id(). Also, export it for use by drivers which are probed by alternate methods (non device-tree) but still wish to make use of the existing DMA APIs. Such drivers could be informed about the thread ID corresponding to the TX DMA channel by RPMsg for example. Since the new function k3_udma_glue_request_tx_chn_for_thread_id() reuses most of the code in k3_udma_glue_request_tx_chn(), create a new function for the common code, named k3_udma_glue_request_tx_chn_common(). Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> Link: https://lore.kernel.org/r/20240124124319.820002-4-s-vadapalli@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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 Restructured Text 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.