| 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-classd.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Atmel ClassD Amplifier |
| 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 | The Audio Class D Amplifier (CLASSD) is a digital input, Pulse Width |
| 17 | Modulated (PWM) output stereo Class D amplifier. |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 21 | oneOf: |
| 22 | - items: |
| 23 | - const: atmel,sama5d2-classd |
| 24 | - items: |
| 25 | - const: microchip,sam9x7-classd |
| 26 | - const: atmel,sama5d2-classd |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 27 | |
| 28 | reg: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | interrupts: |
| 32 | maxItems: 1 |
| 33 | |
| 34 | dmas: |
| 35 | maxItems: 1 |
| 36 | |
| 37 | dma-names: |
| 38 | const: tx |
| 39 | |
| 40 | clocks: |
| 41 | maxItems: 2 |
| 42 | |
| 43 | clock-names: |
| 44 | items: |
| 45 | - const: pclk |
| 46 | - const: gclk |
| 47 | |
| 48 | atmel,model: |
| 49 | $ref: /schemas/types.yaml#/definitions/string |
| 50 | default: CLASSD |
| 51 | description: The user-visible name of this sound complex. |
| 52 | |
| 53 | atmel,pwm-type: |
| 54 | $ref: /schemas/types.yaml#/definitions/string |
| 55 | enum: |
| 56 | - single |
| 57 | - diff |
| 58 | default: single |
| 59 | description: PWM modulation type. |
| 60 | |
| 61 | atmel,non-overlap-time: |
| 62 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 63 | enum: |
| 64 | - 5 |
| 65 | - 10 |
| 66 | - 15 |
| 67 | - 20 |
| 68 | default: 10 |
| 69 | description: |
| 70 | Set non-overlapping time, the unit is nanosecond(ns). |
| 71 | Non-overlapping will be disabled if not specified. |
| 72 | |
| 73 | required: |
| 74 | - compatible |
| 75 | - reg |
| 76 | - interrupts |
| 77 | - dmas |
| 78 | - dma-names |
| 79 | - clock-names |
| 80 | - clocks |
| 81 | |
| 82 | additionalProperties: false |
| 83 | |
| 84 | examples: |
| 85 | - | |
| 86 | #include <dt-bindings/dma/at91.h> |
| 87 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 88 | |
| 89 | classd: sound@fc048000 { |
| 90 | compatible = "atmel,sama5d2-classd"; |
| 91 | reg = <0xfc048000 0x100>; |
| 92 | interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>; |
| 93 | dmas = <&dma0 |
| 94 | (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
| 95 | | AT91_XDMAC_DT_PERID(47))>; |
| 96 | dma-names = "tx"; |
| 97 | clocks = <&classd_clk>, <&classd_gclk>; |
| 98 | clock-names = "pclk", "gclk"; |
| 99 | assigned-clocks = <&classd_gclk>; |
| 100 | pinctrl-names = "default"; |
| 101 | pinctrl-0 = <&pinctrl_classd_default>; |
| 102 | atmel,model = "classd @ SAMA5D2-Xplained"; |
| 103 | atmel,pwm-type = "diff"; |
| 104 | atmel,non-overlap-time = <10>; |
| 105 | }; |