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

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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>
This commit is contained in:
Chancel Liu 2022-09-30 14:44:35 +08:00 committed by Mark Brown
parent 2a9ad0cc15
commit 3570e6873b
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GPG Key ID: 24D68B725D5487D0
1 changed files with 34 additions and 2 deletions
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36
Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml
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@ -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";
};
...