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authorLiam Girdwood <liam.r.girdwood@linux.intel.com>2013-09-20 13:19:06 -0400
committerMark Brown <broonie@linaro.org>2013-09-23 07:06:24 -0400
commit3eb012834b28585a37fe0684182828efc1ab0512 (patch)
tree656c11a90a278ba3b125d36415e2b40b8451fa00 /Documentation/sound/alsa
parentda5feefeda496f003a2e909762e72843cb9837a6 (diff)
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>
Diffstat (limited to 'Documentation/sound/alsa')
-rw-r--r--Documentation/sound/alsa/soc/platform.txt19
1 files changed, 16 insertions, 3 deletions
diff --git a/Documentation/sound/alsa/soc/platform.txt b/Documentation/sound/alsa/soc/platform.txt
index d57efad37e0a..3a08a2c9150c 100644
--- a/Documentation/sound/alsa/soc/platform.txt
+++ b/Documentation/sound/alsa/soc/platform.txt
@@ -1,9 +1,9 @@
1ASoC Platform Driver 1ASoC Platform Driver
2==================== 2====================
3 3
4An ASoC platform driver can be divided into audio DMA and SoC DAI configuration 4An ASoC platform driver class can be divided into audio DMA drivers, SoC DAI
5and control. The platform drivers only target the SoC CPU and must have no board 5drivers and DSP drivers. The platform drivers only target the SoC CPU and must
6specific code. 6have no board specific code.
7 7
8Audio DMA 8Audio DMA
9========= 9=========
@@ -64,3 +64,16 @@ Each SoC DAI driver must provide the following features:-
64 5) Suspend and resume (optional) 64 5) Suspend and resume (optional)
65 65
66Please see codec.txt for a description of items 1 - 4. 66Please see codec.txt for a description of items 1 - 4.
67
68
69SoC DSP Drivers
70===============
71
72Each SoC DSP driver usually supplies the following features :-
73
74 1) DAPM graph
75 2) Mixer controls
76 3) DMA IO to/from DSP buffers (if applicable)
77 4) Definition of DSP front end (FE) PCM devices.
78
79Please see DPCM.txt for a description of item 4.