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| author | Vinod Koul <vinod.koul@intel.com> | 2014-07-28 13:56:36 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2014-07-28 13:56:36 +0200 |
| commit | db0e7018191e1deb33e3ed8bb8ed89e5a4ae1ba1 (patch) | |
| tree | 97dbc5853a1849bcd72c06f4191452b2adab167b /Documentation | |
| parent | dmaengine: edma: Serve cyclic (audio) channels with high priority queue (diff) | |
| parent | dma: rcar-audmapp: add DT support (diff) | |
| download | linux-db0e7018191e1deb33e3ed8bb8ed89e5a4ae1ba1.tar.xz linux-db0e7018191e1deb33e3ed8bb8ed89e5a4ae1ba1.zip | |
Merge commit 'renesas-rcar-audmapp-for-v3.17' into for-linus
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/rcar-audmapp.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/rcar-audmapp.txt b/Documentation/devicetree/bindings/dma/rcar-audmapp.txt new file mode 100644 index 000000000000..9f1d750d76de --- /dev/null +++ b/Documentation/devicetree/bindings/dma/rcar-audmapp.txt @@ -0,0 +1,29 @@ +* R-Car Audio DMAC peri peri Device Tree bindings + +Required properties: +- compatible: should be "renesas,rcar-audmapp" +- #dma-cells: should be <1>, see "dmas" property below + +Example: + audmapp: audio-dma-pp@0xec740000 { + compatible = "renesas,rcar-audmapp"; + #dma-cells = <1>; + + reg = <0 0xec740000 0 0x200>; + }; + + +* DMA client + +Required properties: +- dmas: a list of <[DMA multiplexer phandle] [SRS/DRS value]> pairs, + where SRS/DRS values are fixed handles, specified in the SoC + manual as the value that would be written into the PDMACHCR. +- dma-names: a list of DMA channel names, one per "dmas" entry + +Example: + + dmas = <&audmapp 0x2d00 + &audmapp 0x3700>; + dma-names = "src0_ssiu0", + "dvc0_ssiu0"; |