diff options
Diffstat (limited to 'dts/Bindings/sound/fsl,rpmsg.yaml')
| -rw-r--r-- | dts/Bindings/sound/fsl,rpmsg.yaml | 54 |
1 files changed, 39 insertions, 15 deletions
diff --git a/dts/Bindings/sound/fsl,rpmsg.yaml b/dts/Bindings/sound/fsl,rpmsg.yaml index d370c98a62..188f38badd 100644 --- a/dts/Bindings/sound/fsl,rpmsg.yaml +++ b/dts/Bindings/sound/fsl,rpmsg.yaml @@ -11,8 +11,14 @@ 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. + +allOf: + - $ref: sound-card-common.yaml# properties: compatible: @@ -22,10 +28,7 @@ properties: - fsl,imx8mm-rpmsg-audio - fsl,imx8mp-rpmsg-audio - fsl,imx8ulp-rpmsg-audio - - model: - $ref: /schemas/types.yaml#/definitions/string - description: User specified audio sound card name + - fsl,imx93-rpmsg-audio clocks: items: @@ -62,13 +65,6 @@ properties: $ref: /schemas/types.yaml#/definitions/phandle description: The phandle to a node of audio codec - audio-routing: - $ref: /schemas/types.yaml#/definitions/non-unique-string-array - description: | - A list of the connections between audio components. Each entry is a - pair of strings, the first being the connection's sink, the second - being the connection's source. - fsl,enable-lpa: $ref: /schemas/types.yaml#/definitions/flag description: enable low power audio path. @@ -85,11 +81,20 @@ 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 -additionalProperties: false +unevaluatedProperties: false examples: - | @@ -107,3 +112,22 @@ 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"; + }; + +... |