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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/sound/davinci-mcasp-audio.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: McASP Controller for TI SoCs maintainers: - Jayesh Choudhary <j-choudhary@ti.com> properties: compatible: enum: - ti,dm646x-mcasp-audio - ti,da830-mcasp-audio - ti,am33xx-mcasp-audio - ti,dra7-mcasp-audio - ti,omap4-mcasp-audio reg: minItems: 1 items: - description: CFG registers - description: data registers reg-names: minItems: 1 items: - const: mpu - const: dat op-mode: $ref: /schemas/types.yaml#/definitions/uint32 description: 0 - I2S or 1 - DIT operation mode enum: - 0 - 1 tdm-slots: $ref: /schemas/types.yaml#/definitions/uint32 description: number of channels over one serializer the property is ignored in DIT mode minimum: 2 maximum: 32 serial-dir: description: A list of serializer configuration Entry is indication for serializer pin direction 0 - Inactive, 1 - TX, 2 - RX All AXR pins should be present in the array even if inactive $ref: /schemas/types.yaml#/definitions/uint32-array minItems: 1 maxItems: 25 items: minimum: 0 maximum: 2 dmas: minItems: 1 items: - description: transmission DMA channel - description: reception DMA channel dma-names: minItems: 1 items: - const: tx - const: rx ti,hwmods: $ref: /schemas/types.yaml#/definitions/string description: Name of hwmod associated with McASP maxItems: 1 deprecated: true tx-num-evt: $ref: /schemas/types.yaml#/definitions/uint32 description: configures WFIFO threshold 0 disables the FIFO use if property is missing, then also FIFO use is disabled rx-num-evt: $ref: /schemas/types.yaml#/definitions/uint32 description: configures RFIFO threshold 0 disables the FIFO use if property is missing, then also FIFO use is disabled dismod: $ref: /schemas/types.yaml#/definitions/uint32 description: specify the drive on TX pin during inactive time slots 0 - 3-state, 2 - logic low, 3 - logic high enum: - 0 - 2 - 3 default: 2 interrupts: anyOf: - minItems: 1 items: - description: TX interrupt - description: RX interrupt - items: - description: common/combined interrupt interrupt-names: oneOf: - minItems: 1 items: - const: tx - const: rx - const: common fck_parent: $ref: /schemas/types.yaml#/definitions/string description: parent clock name for McASP fck maxItems: 1 auxclk-fs-ratio: $ref: /schemas/types.yaml#/definitions/uint32 description: ratio of AUCLK and FS rate if applicable gpio-controller: true "#gpio-cells": const: 2 clocks: minItems: 1 items: - description: functional clock - description: module specific optional ahclkx clock - description: module specific optional ahclkr clock clock-names: minItems: 1 items: - const: fck - const: ahclkx - const: ahclkr power-domains: description: phandle to the corresponding power-domain maxItems: 1 "#sound-dai-cells": const: 0 port: description: connection for when McASP is used via graph card type: object required: - compatible - reg - reg-names - dmas - dma-names - interrupts - interrupt-names allOf: - $ref: dai-common.yaml# - if: properties: opmode: enum: - 0 then: required: - tdm-slots unevaluatedProperties: false examples: - | mcasp0: mcasp0@1d00000 { compatible = "ti,da830-mcasp-audio"; reg = <0x100000 0x3000>; reg-names = "mpu"; interrupts = <82>, <83>; interrupt-names = "tx", "rx"; op-mode = <0>; /* MCASP_IIS_MODE */ tdm-slots = <2>; dmas = <&main_udmap 0xc400>, <&main_udmap 0x4400>; dma-names = "tx", "rx"; serial-dir = < 0 0 0 0 /* 0: INACTIVE, 1: TX, 2: RX */ 0 0 0 0 0 0 0 1 2 0 0 0 >; tx-num-evt = <1>; rx-num-evt = <1>; }; |