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authorJyri Sarha <jsarha@ti.com>2013-10-18 18:37:43 +0300
committerMark Brown <broonie@linaro.org>2013-10-22 12:03:21 +0100
commit4023fe6ff2192d6050647571ea54f5497b2ec8f6 (patch)
treef853cf5add0ab7ce1d371aec5fc2a7156f95561b /Documentation
parent256ba181cb2ddeef8e0a9b0540b09e0f77bf5540 (diff)
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ASoC: davinci-mcasp: Extract DMA channels directly from DT
Extract DMA channels directly from DT as they can not be found from platform resources anymore. This is a work-around until davinci audio driver is updated to use dmaengine. Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index c2ab869..c3ccde7 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -18,6 +18,11 @@ Required properties:
- serial-dir : A list of serializer pin mode. The list number should be equal
to "num-serializer" parameter. Each entry is a number indication
serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
+- dmas: two element list of DMA controller phandles 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. The dma
+ identifiers must be "rx" and "tx".
Optional properties:
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