| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/sound/cirrus,ep9301-i2s.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Cirrus EP93xx I2S Controller |
| |
| description: | |
| The I2S controller is used to stream serial audio data between the external |
| I2S CODECs’, ADCs/DACs, and the ARM Core. The controller supports I2S, Left- |
| and Right-Justified DSP formats. |
| |
| maintainers: |
| - Alexander Sverdlin <alexander.sverdlin@gmail.com> |
| |
| allOf: |
| - $ref: dai-common.yaml# |
| |
| properties: |
| compatible: |
| const: cirrus,ep9301-i2s |
| |
| '#sound-dai-cells': |
| const: 0 |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| minItems: 3 |
| maxItems: 3 |
| |
| clock-names: |
| items: |
| - const: mclk |
| - const: sclk |
| - const: lrclk |
| |
| dmas: |
| items: |
| - description: out DMA channel |
| - description: in DMA channel |
| |
| dma-names: |
| items: |
| - const: tx |
| - const: rx |
| |
| port: |
| $ref: audio-graph-port.yaml# |
| unevaluatedProperties: false |
| |
| required: |
| - compatible |
| - '#sound-dai-cells' |
| - reg |
| - clocks |
| - clock-names |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| i2s: i2s@80820000 { |
| compatible = "cirrus,ep9301-i2s"; |
| #sound-dai-cells = <0>; |
| reg = <0x80820000 0x100>; |
| interrupt-parent = <&vic1>; |
| interrupts = <28>; |
| clocks = <&syscon 29>, |
| <&syscon 30>, |
| <&syscon 31>; |
| clock-names = "mclk", "sclk", "lrclk"; |
| dmas = <&dma0 0 1>, <&dma0 0 2>; |
| dma-names = "tx", "rx"; |
| }; |
| |
| ... |
