TDM is not supported by the McBSP driver. The McBSP datasheet does not name explicitly TDM as a supported format but it is possible to configure the McBSP to do TDM if all slots are used by McBSP. Add TDM support. It uses single-phase frame. Slot width is used to compute the McBSP's word length. Implement the set_tdm_slot() hook of snd_soc_dai_ops struct. It only supports TDM if all slots are used by McBSP. The snd_soc_dai_driver's channels_max is updated from 2 to 128. This was tested with BP_FC format on a platform designed off of DAVINCI/OMAP_L138. A check is done in davinci_i2s_set_dai_fmt() to prevent TDM to be used with BC_FC and BC_FP formats. Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> Link: https://msgid.link/r/20240402071213.11671-8-bastien.curutchet@bootlin.com Signed-off-by: Mark Brown <broonie@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 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.
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