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| author | Hebbar, Gururaja <gururaja.hebbar@ti.com> | 2012-08-27 18:56:42 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-08-27 11:12:09 -0700 |
| commit | 3e3b8c3415b15adb5a7ffcbfbeb360e7c9f5f4f7 (patch) | |
| tree | 92c7bd6e3fe950d0aa521545d884bf19a55b663c /Documentation/devicetree | |
| parent | 896f66b7de293644e65cf62600e4933af954dcf2 (diff) | |
| download | blackbird-op-linux-3e3b8c3415b15adb5a7ffcbfbeb360e7c9f5f4f7.tar.gz blackbird-op-linux-3e3b8c3415b15adb5a7ffcbfbeb360e7c9f5f4f7.zip | |
ASoC: Davinci: McASP: add device tree support for McASP
Add device tree probe for McASP driver.
Note:
DMA parameters are not populated from DT and will be done later.
Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt new file mode 100644 index 000000000000..e6148eca2942 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt @@ -0,0 +1,44 @@ +Texas Instruments McASP controller + +Required properties: +- compatible : + "ti,dm646x-mcasp-audio" : for DM646x platforms + "ti,da830-mcasp-audio" : for both DA830 & DA850 platforms + +- reg : Should contain McASP registers offset and length +- interrupts : Interrupt number for McASP +- op-mode : I2S/DIT ops mode. +- tdm-slots : Slots for TDM operation. +- num-serializer : Serializers used by McASP. +- 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) + + +Optional properties: + +- ti,hwmods : Must be "mcasp<n>", n is controller instance starting 0 +- tx-num-evt : FIFO levels. +- rx-num-evt : FIFO levels. +- sram-size-playback : size of sram to be allocated during playback +- sram-size-capture : size of sram to be allocated during capture + +Example: + +mcasp0: mcasp0@1d00000 { + compatible = "ti,da830-mcasp-audio"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x100000 0x3000>; + interrupts = <82 83>; + op-mode = <0>; /* MCASP_IIS_MODE */ + tdm-slots = <2>; + num-serializer = <16>; + serial-dir = < + 0 0 0 0 /* 0: INACTIVE, 1: TX, 2: RX */ + 0 0 0 0 + 0 0 0 1 + 2 0 0 0 >; + tx-num-evt = <1>; + rx-num-evt = <1>; +}; |
