diff options
| author | Baolin Wang <baolin.wang@linaro.org> | 2019-01-29 16:04:44 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-01-29 18:08:13 +0000 |
| commit | 27e27e6555d3a1dd3c906796af6d8e7eb538857f (patch) | |
| tree | 2662ab708183c600ddc70efd5dc7e441052d8992 /Documentation/devicetree/bindings/sound/sprd-pcm.txt | |
| parent | 7df04ea7a31eaa75bdad2905f07cc097b15558ee (diff) | |
dt-bindings: ASoC: Add Spreadtrum DMA platform documentation
Add documentation for Spreadtrum DMA platform driver.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/sprd-pcm.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/sprd-pcm.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/sprd-pcm.txt b/Documentation/devicetree/bindings/sound/sprd-pcm.txt new file mode 100644 index 000000000000..4b23e84b2e57 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sprd-pcm.txt @@ -0,0 +1,23 @@ +* Spreadtrum DMA platfrom bindings + +Required properties: +- compatible: Should be "sprd,pcm-platform". +- dmas: Specify the list of DMA controller phandle and DMA request line ordered pairs. +- dma-names: Identifier string for each DMA request line in the dmas property. + These strings correspond 1:1 with the ordered pairs in dmas. + +Example: + + audio_platform:platform@0 { + compatible = "sprd,pcm-platform"; + dmas = <&agcp_dma 1 1>, <&agcp_dma 2 2>, + <&agcp_dma 3 3>, <&agcp_dma 4 4>, + <&agcp_dma 5 5>, <&agcp_dma 6 6>, + <&agcp_dma 7 7>, <&agcp_dma 8 8>, + <&agcp_dma 9 9>, <&agcp_dma 10 10>; + dma-names = "normal_p_l", "normal_p_r", + "normal_c_l", "normal_c_r", + "voice_c", "fast_p", + "loop_c", "loop_p", + "voip_c", "voip_p"; + }; |