diff options
author | Mark Brown <broonie@linaro.org> | 2013-10-24 06:24:05 -0400 |
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committer | Mark Brown <broonie@linaro.org> | 2013-10-24 06:24:05 -0400 |
commit | 9f7a949fb909b017e054574c96c4ebb44f5ff3fa (patch) | |
tree | 58aa069ba011a9ef626f30a61cfcdd1ac520b1b8 /Documentation/sound/alsa/soc/platform.txt | |
parent | 70e0db2f7434961c778466708c032e76775b7f1e (diff) | |
parent | 469b7bc4e6dbfdb173f0901f746e9277f6740ba7 (diff) |
Merge remote-tracking branch 'asoc/topic/doc' into asoc-next
Diffstat (limited to 'Documentation/sound/alsa/soc/platform.txt')
-rw-r--r-- | Documentation/sound/alsa/soc/platform.txt | 19 |
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 @@ | |||
1 | ASoC Platform Driver | 1 | ASoC Platform Driver |
2 | ==================== | 2 | ==================== |
3 | 3 | ||
4 | An ASoC platform driver can be divided into audio DMA and SoC DAI configuration | 4 | An ASoC platform driver class can be divided into audio DMA drivers, SoC DAI |
5 | and control. The platform drivers only target the SoC CPU and must have no board | 5 | drivers and DSP drivers. The platform drivers only target the SoC CPU and must |
6 | specific code. | 6 | have no board specific code. |
7 | 7 | ||
8 | Audio DMA | 8 | Audio 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 | ||
66 | Please see codec.txt for a description of items 1 - 4. | 66 | Please see codec.txt for a description of items 1 - 4. |
67 | |||
68 | |||
69 | SoC DSP Drivers | ||
70 | =============== | ||
71 | |||
72 | Each 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 | |||
79 | Please see DPCM.txt for a description of item 4. | ||