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| author | Chancel Liu <chancel.liu@nxp.com> | 2022-09-30 09:44:35 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-10-17 14:48:12 +0300 |
| commit | 3570e6873b1a506bca4b5788d71141944c55132c (patch) | |
| tree | 32c4f98820815c056fe51aca01aaf3f4353378f8 /Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml | |
| parent | 2a9ad0cc15d6b3f2475acdcd091bd0f6757ba7d8 (diff) | |
| download | linux-3570e6873b1a506bca4b5788d71141944c55132c.tar.xz | |
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: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220930064441.2548505-2-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml index d370c98a62c7..e847611a85f7 100644 --- a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml +++ b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml @@ -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"; + }; + +... |