107 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/sound/fsl,easrc.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: NXP Asynchronous Sample Rate Converter (ASRC) Controller8 9maintainers:10 - Shengjiu Wang <shengjiu.wang@nxp.com>11 12properties:13 $nodename:14 pattern: "^easrc@.*"15 16 compatible:17 oneOf:18 - enum:19 - fsl,imx8mn-easrc20 - items:21 - enum:22 - fsl,imx8mp-easrc23 - const: fsl,imx8mn-easrc24 25 reg:26 maxItems: 127 28 interrupts:29 maxItems: 130 31 clocks:32 items:33 - description: Peripheral clock34 35 clock-names:36 items:37 - const: mem38 39 dmas:40 maxItems: 841 42 dma-names:43 items:44 - const: ctx0_rx45 - const: ctx0_tx46 - const: ctx1_rx47 - const: ctx1_tx48 - const: ctx2_rx49 - const: ctx2_tx50 - const: ctx3_rx51 - const: ctx3_tx52 53 firmware-name:54 items:55 - const: imx/easrc/easrc-imx8mn.bin56 description: The coefficient table for the filters57 58 fsl,asrc-rate:59 $ref: /schemas/types.yaml#/definitions/uint3260 minimum: 800061 maximum: 19200062 description: Defines a mutual sample rate used by DPCM Back Ends63 64 fsl,asrc-format:65 $ref: /schemas/types.yaml#/definitions/uint3266 enum: [2, 6, 10, 32, 36]67 default: 268 description:69 Defines a mutual sample format used by DPCM Back Ends70 71required:72 - compatible73 - reg74 - interrupts75 - clocks76 - clock-names77 - dmas78 - dma-names79 - firmware-name80 - fsl,asrc-rate81 - fsl,asrc-format82 83additionalProperties: false84 85examples:86 - |87 #include <dt-bindings/clock/imx8mn-clock.h>88 89 easrc: easrc@300c0000 {90 compatible = "fsl,imx8mn-easrc";91 reg = <0x300c0000 0x10000>;92 interrupts = <0x0 122 0x4>;93 clocks = <&clk IMX8MN_CLK_ASRC_ROOT>;94 clock-names = "mem";95 dmas = <&sdma2 16 23 0> , <&sdma2 17 23 0>,96 <&sdma2 18 23 0> , <&sdma2 19 23 0>,97 <&sdma2 20 23 0> , <&sdma2 21 23 0>,98 <&sdma2 22 23 0> , <&sdma2 23 23 0>;99 dma-names = "ctx0_rx", "ctx0_tx",100 "ctx1_rx", "ctx1_tx",101 "ctx2_rx", "ctx2_tx",102 "ctx3_rx", "ctx3_tx";103 firmware-name = "imx/easrc/easrc-imx8mn.bin";104 fsl,asrc-rate = <8000>;105 fsl,asrc-format = <2>;106 };107