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ASoC: dmaengine_pcm: document process callback
Add missing description of process callback.
Fixes: 78648092ef
("ASoC: dmaengine_pcm: add processing support")
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -118,6 +118,8 @@ void snd_dmaengine_pcm_set_config_from_dai_data(
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* PCM substream. Will be called from the PCM drivers hwparams callback.
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* @compat_request_channel: Callback to request a DMA channel for platforms
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* which do not use devicetree.
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* @process: Callback used to apply processing on samples transferred from/to
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* user space.
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* @compat_filter_fn: Will be used as the filter function when requesting a
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* channel for platforms which do not use devicetree. The filter parameter
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* will be the DAI's DMA data.
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