ASoC: Docs: Platform update
Update the platform class driver documentation and bring it up to date with the current code base. This includes multi component and DSP. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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ASoC Platform Driver
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ASoC Platform Driver
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====================
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====================
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An ASoC platform driver can be divided into audio DMA and SoC DAI configuration
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An ASoC platform driver class can be divided into audio DMA drivers, SoC DAI
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and control. The platform drivers only target the SoC CPU and must have no board
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drivers and DSP drivers. The platform drivers only target the SoC CPU and must
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specific code.
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have no board specific code.
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Audio DMA
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Audio DMA
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=========
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=========
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@ -64,3 +64,16 @@ Each SoC DAI driver must provide the following features:-
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5) Suspend and resume (optional)
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5) Suspend and resume (optional)
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Please see codec.txt for a description of items 1 - 4.
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Please see codec.txt for a description of items 1 - 4.
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SoC DSP Drivers
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===============
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Each SoC DSP driver usually supplies the following features :-
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1) DAPM graph
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2) Mixer controls
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3) DMA IO to/from DSP buffers (if applicable)
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4) Definition of DSP front end (FE) PCM devices.
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Please see DPCM.txt for a description of item 4.
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