Unverified Commit 3570e687 authored by Chancel Liu's avatar Chancel Liu Committed by Mark Brown
Browse files

ASoC: dt-bindings: fsl_rpmsg: Add a property to assign the rpmsg channel 



Add a string property to assign the rpmsg channel this sound card sits
on. This property can be omitted if there is only one sound card and it
sits on "rpmsg-audio-channel".

Signed-off-by: default avatarChancel Liu <chancel.liu@nxp.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220930064441.2548505-2-chancel.liu@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2a9ad0cc

Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml

+34 −2
Original line number Diff line number Diff line
@@ -11,8 +11,11 @@ maintainers: 


description: |

  fsl_rpmsg is a virtual audio device. Mapping to real hardware devices

  are SAI, DMA controlled by Cortex M core. What we see from Linux

  side is a device which provides audio service by rpmsg channel.

  are SAI, MICFIL, DMA controlled by Cortex M core. What we see from

  Linux side is a device which provides audio service by rpmsg channel.

  We can create different sound cards which access different hardwares

  such as SAI, MICFIL, .etc through building rpmsg channels between

  Cortex-A and Cortex-M.



properties:

  compatible:
@@ -85,6 +88,16 @@ properties: 
      This is a boolean property. If present, the receiving function

      will be enabled.



  fsl,rpmsg-channel-name:

    $ref: /schemas/types.yaml#/definitions/string

    description: |

      A string property to assign rpmsg channel this sound card sits on.

      This property can be omitted if there is only one sound card and it sits

      on "rpmsg-audio-channel".

    enum:

      - rpmsg-audio-channel

      - rpmsg-micfil-channel



required:

  - compatible

  - model
@@ -107,3 +120,22 @@ examples: 
                 <&clk IMX8MN_AUDIO_PLL2_OUT>;

        clock-names = "ipg", "mclk", "dma", "pll8k", "pll11k";

    };



  - |

    #include <dt-bindings/clock/imx8mm-clock.h>



    rpmsg_micfil: audio-controller {

        compatible = "fsl,imx8mm-rpmsg-audio";

        model = "micfil-audio";

        fsl,rpmsg-channel-name = "rpmsg-micfil-channel";

        fsl,enable-lpa;

        fsl,rpmsg-in;

        clocks = <&clk IMX8MM_CLK_PDM_IPG>,

                 <&clk IMX8MM_CLK_PDM_ROOT>,

                 <&clk IMX8MM_CLK_SDMA3_ROOT>,

                 <&clk IMX8MM_AUDIO_PLL1_OUT>,

                 <&clk IMX8MM_AUDIO_PLL2_OUT>;

        clock-names = "ipg", "mclk", "dma", "pll8k", "pll11k";

    };



...