| # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/sound/marvell,mmp-sspa.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Marvel SSPA Digital Audio Interface Bindings |
| |
| maintainers: |
| - Lubomir Rintel <lkundrak@v3.sk> |
| |
| properties: |
| $nodename: |
| pattern: "^audio-controller(@.*)?$" |
| |
| compatible: |
| const: marvell,mmp-sspa |
| |
| reg: |
| items: |
| - description: RX block |
| - description: TX block |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| items: |
| - description: Clock for the Audio block |
| - description: I2S bit clock |
| |
| clock-names: |
| items: |
| - const: audio |
| - const: bitclk |
| |
| power-domains: |
| maxItems: 1 |
| |
| '#sound-dai-cells': |
| const: 0 |
| |
| dmas: |
| items: |
| - description: TX DMA Channel |
| - description: RX DMA Channel |
| |
| dma-names: |
| items: |
| - const: tx |
| - const: rx |
| |
| port: |
| type: object |
| |
| properties: |
| endpoint: |
| type: object |
| |
| properties: |
| remote-endpoint: true |
| |
| frame-master: |
| type: boolean |
| description: SoC generates the frame clock |
| |
| bitclock-master: |
| type: boolean |
| description: SoC generates the bit clock |
| |
| dai-format: |
| $ref: /schemas/types.yaml#/definitions/string |
| description: The digital audio format |
| const: i2s |
| |
| required: |
| - remote-endpoint |
| |
| required: |
| - endpoint |
| |
| additionalProperties: false |
| |
| required: |
| - "#sound-dai-cells" |
| - compatible |
| - reg |
| - interrupts |
| - clocks |
| - clock-names |
| - dmas |
| - dma-names |
| - port |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/clock/marvell,mmp2.h> |
| |
| audio-controller@d42a0c00 { |
| compatible = "marvell,mmp-sspa"; |
| reg = <0xd42a0c00 0x30>, |
| <0xd42a0c80 0x30>; |
| interrupts = <2>; |
| clock-names = "audio", "bitclk"; |
| clocks = <&soc_clocks 127>, |
| <&audio_clk 1>; |
| #sound-dai-cells = <0>; |
| dmas = <&adma0 0>, <&adma0 1>; |
| dma-names = "tx", "rx"; |
| port { |
| endpoint { |
| remote-endpoint = <&rt5631_0>; |
| frame-master; |
| bitclock-master; |
| dai-format = "i2s"; |
| }; |
| }; |
| }; |
| |
| ... |
