| Message ID | f7edc4078b2d6f44ed5ad47c14dd58da5cc50f21.1555670768.git.baolin.wang@linaro.org |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
| Series | [1/2] dt-bindings: soc: sprd: Add Spreadtrum MCDT documentation | expand |
| Context | Check | Description |
|---|---|---|
| robh/checkpatch | success |
Hi Mark, On Fri, 19 Apr 2019 at 22:50, Mark Brown <broonie@kernel.org> wrote: > > On Fri, Apr 19, 2019 at 06:54:32PM +0800, Baolin Wang wrote: > > On Spreadtrum platform, the audio subsystem will use the multi-channel > > data transfer controller to transfer sound stream between audio subsystem > > and other AP/CP subsystem. > > > > It can support 10 DAC channel and 10 ADC channel, and each channel has > > 512 bytes depth data fifo. Moreover each channel can be used DMA mode > > or interrupt mode to transfer data. > > Acked-by: Mark Brown <broonie@kernel.org> Thanks for your reviewing. > > However if there's no non-audio users of this DSP then it's probably > better to just move the driver into sound/soc. Yes, only audio will use this driver. OK, I will move it into sound/soc if no other objections. Thanks.
diff --git a/Documentation/devicetree/bindings/soc/sprd/sprd-mcdt.txt b/Documentation/devicetree/bindings/soc/sprd/sprd-mcdt.txt new file mode 100644 index 0000000..274ba0a --- /dev/null +++ b/Documentation/devicetree/bindings/soc/sprd/sprd-mcdt.txt @@ -0,0 +1,19 @@ +Spreadtrum Multi-Channel Data Transfer Binding + +The Multi-channel data transfer controller is used for sound stream +transmission between audio subsystem and other AP/CP subsystem. It +supports 10 DAC channel and 10 ADC channel, and each channel can be +configured with DMA mode or interrupt mode. + +Required properties: +- compatible: Should be "sprd,sc9860-mcdt". +- reg: Should contain registers address and length. +- interrupts: Should contain one interrupt shared by all channel. + +Example: + +mcdt@41490000 { + compatible = "sprd,sc9860-mcdt"; + reg = <0 0x41490000 0 0x170>; + interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; +};
Add documentation for Spreadtrum multi-channel data transfer controller, which is used for sound stream transmission between audio subsystem and other AP/CP subsystems. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> --- .../devicetree/bindings/soc/sprd/sprd-mcdt.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/sprd/sprd-mcdt.txt