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The following fields are added to physical link configuration struct (snd_soc_tplg_link_config) in ABI v5: - name and stream name Topology will use them to find an existing physical link and configure it. - HW configurations Define the types and ABI struct for runtime supported hardware configs of physical DAI links, e.g. audio hardware formats. The default HW config ID will help topology to find the DAI format to set on init. Topology provides this as a fallback if such HW settings are not available in ACPI or device tree, to avoid hard code in drivers. It's only for config items that can be programmed by SW or FW, not for physical things like link connections or GPIO used for HP etc. - flags and private data The flags will be used to configure an existing physical DAI link. The private data is reserved for future extension. NOTE: Current kernel has no support for physical links. A later patch will add support for configuring physical links and make the support backward compatible for ABI v4. Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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