Conor Dooley | bc4c9d8 | 2022-07-01 20:22:49 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/sound/snps,designware-i2s.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: DesignWare I2S controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Jose Abreu <joabreu@synopsys.com> |
| 11 | |
| 12 | properties: |
| 13 | compatible: |
| 14 | oneOf: |
| 15 | - items: |
| 16 | - const: canaan,k210-i2s |
| 17 | - const: snps,designware-i2s |
| 18 | - enum: |
| 19 | - snps,designware-i2s |
| 20 | |
| 21 | reg: |
| 22 | maxItems: 1 |
| 23 | |
| 24 | interrupts: |
| 25 | description: | |
| 26 | The interrupt line number for the I2S controller. Add this |
| 27 | parameter if the I2S controller that you are using does not |
| 28 | support DMA. |
| 29 | maxItems: 1 |
| 30 | |
| 31 | clocks: |
| 32 | description: Sampling rate reference clock |
| 33 | maxItems: 1 |
| 34 | |
| 35 | clock-names: |
| 36 | const: i2sclk |
| 37 | |
| 38 | resets: |
| 39 | maxItems: 1 |
| 40 | |
| 41 | dmas: |
| 42 | items: |
| 43 | - description: TX DMA Channel |
| 44 | - description: RX DMA Channel |
| 45 | minItems: 1 |
| 46 | |
| 47 | dma-names: |
| 48 | items: |
| 49 | - const: tx |
| 50 | - const: rx |
| 51 | minItems: 1 |
| 52 | |
Krzysztof Kozlowski | 58ae9a2 | 2022-12-03 17:04:41 +0100 | [diff] [blame] | 53 | allOf: |
| 54 | - $ref: dai-common.yaml# |
| 55 | - if: |
| 56 | properties: |
| 57 | compatible: |
| 58 | contains: |
| 59 | const: canaan,k210-i2s |
| 60 | then: |
| 61 | properties: |
| 62 | "#sound-dai-cells": |
| 63 | const: 1 |
| 64 | else: |
| 65 | properties: |
| 66 | "#sound-dai-cells": |
| 67 | const: 0 |
Conor Dooley | bc4c9d8 | 2022-07-01 20:22:49 +0100 | [diff] [blame] | 68 | |
| 69 | required: |
| 70 | - compatible |
| 71 | - reg |
| 72 | - clocks |
| 73 | - clock-names |
| 74 | |
| 75 | oneOf: |
| 76 | - required: |
| 77 | - dmas |
| 78 | - dma-names |
| 79 | - required: |
| 80 | - interrupts |
| 81 | |
| 82 | unevaluatedProperties: false |
| 83 | |
| 84 | examples: |
| 85 | - | |
| 86 | soc_i2s: i2s@7ff90000 { |
| 87 | compatible = "snps,designware-i2s"; |
| 88 | reg = <0x7ff90000 0x1000>; |
| 89 | clocks = <&scpi_i2sclk 0>; |
| 90 | clock-names = "i2sclk"; |
| 91 | #sound-dai-cells = <0>; |
| 92 | dmas = <&dma0 5>; |
| 93 | dma-names = "tx"; |
| 94 | }; |