Unverified Commit 9ddaa1e6 authored by Michael Sit Wei Hong's avatar Michael Sit Wei Hong Committed by Mark Brown
Browse files

ASoC: intel, keembay-i2s: Add info for device to use DMA 



Add descriptions for entries needed for audio device to use DMA
channels for audio playback and capture.

Signed-off-by: default avatarMichael Sit Wei Hong <michael.wei.hong.sit@intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210108031248.20520-5-michael.wei.hong.sit@intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 11b943c0

Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml

+14 −0
Original line number Diff line number Diff line
@@ -45,6 +45,18 @@ properties: 
      - const: osc

      - const: apb_clk



  dmas:

    items:

      - description: DMA controller phandle and DMA channel

                     for TX and RX



  dma-names:

    items:

      - description: "tx" for the transmit channel

                     "rx" for the receive channel

      - const: tx

      - const: rx



required:

  - compatible

  - "#sound-dai-cells"
@@ -70,4 +82,6 @@ examples: 
         interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;

         clock-names = "osc", "apb_clk";

         clocks = <&scmi_clk KEEM_BAY_PSS_AUX_I2S3>, <&scmi_clk KEEM_BAY_PSS_I2S3>;

         dmas = <&axi_dma0 29 &axi_dma0 33>;

         dma-names = "tx", "rx";

     };