| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/sound/atmel,sama5d2-i2s.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Atmel I2S controller |
| 9 | |
| 10 | maintainers: |
| 11 | - Nicolas Ferre <nicolas.ferre@microchip.com> |
| 12 | - Alexandre Belloni <alexandre.belloni@bootlin.com> |
| 13 | - Claudiu Beznea <claudiu.beznea@microchip.com> |
| 14 | |
| 15 | description: |
| 16 | Atmel I2S (Inter-IC Sound Controller) bus is the standard |
| 17 | interface for connecting audio devices, such as audio codecs. |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | const: atmel,sama5d2-i2s |
| 22 | |
| 23 | reg: |
| 24 | maxItems: 1 |
| 25 | |
| 26 | interrupts: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | clocks: |
| 30 | items: |
| 31 | - description: Peripheral clock |
| 32 | - description: Generated clock (Optional) |
| 33 | - description: I2S mux clock (Optional). Set |
| 34 | with gclk when Master Mode is required. |
| 35 | minItems: 1 |
| 36 | |
| 37 | clock-names: |
| 38 | items: |
| 39 | - const: pclk |
| 40 | - const: gclk |
| 41 | - const: muxclk |
| 42 | minItems: 1 |
| 43 | |
| 44 | dmas: |
| 45 | items: |
| 46 | - description: TX DMA Channel |
| 47 | - description: RX DMA Channel |
| 48 | |
| 49 | dma-names: |
| 50 | items: |
| 51 | - const: tx |
| 52 | - const: rx |
| 53 | |
| 54 | required: |
| 55 | - compatible |
| 56 | - reg |
| 57 | - interrupts |
| 58 | - dmas |
| 59 | - dma-names |
| 60 | - clocks |
| 61 | - clock-names |
| 62 | |
| 63 | additionalProperties: false |
| 64 | |
| 65 | examples: |
| 66 | - | |
| 67 | #include <dt-bindings/dma/at91.h> |
| 68 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 69 | |
| 70 | i2s@f8050000 { |
| 71 | compatible = "atmel,sama5d2-i2s"; |
| 72 | reg = <0xf8050000 0x300>; |
| 73 | interrupts = <54 IRQ_TYPE_LEVEL_HIGH 7>; |
| 74 | dmas = <&dma0 |
| 75 | (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | |
| 76 | AT91_XDMAC_DT_PERID(31))>, |
| 77 | <&dma0 |
| 78 | (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | |
| 79 | AT91_XDMAC_DT_PERID(32))>; |
| 80 | dma-names = "tx", "rx"; |
| 81 | clocks = <&i2s0_clk>, <&i2s0_gclk>, <&i2s0muxck>; |
| 82 | clock-names = "pclk", "gclk", "muxclk"; |
| 83 | pinctrl-names = "default"; |
| 84 | pinctrl-0 = <&pinctrl_i2s0_default>; |
| 85 | }; |