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| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
| %YAML 1.2
| ---
| $id: http://devicetree.org/schemas/sound/fsl,easrc.yaml#
| $schema: http://devicetree.org/meta-schemas/core.yaml#
|
| title: NXP Asynchronous Sample Rate Converter (ASRC) Controller
|
| maintainers:
| - Shengjiu Wang <shengjiu.wang@nxp.com>
|
| properties:
| $nodename:
| pattern: "^easrc@.*"
|
| compatible:
| const: fsl,imx8mn-easrc
|
| reg:
| maxItems: 1
|
| interrupts:
| maxItems: 1
|
| clocks:
| items:
| - description: Peripheral clock
|
| clock-names:
| items:
| - const: mem
|
| dmas:
| maxItems: 8
|
| dma-names:
| items:
| - const: ctx0_rx
| - const: ctx0_tx
| - const: ctx1_rx
| - const: ctx1_tx
| - const: ctx2_rx
| - const: ctx2_tx
| - const: ctx3_rx
| - const: ctx3_tx
|
| firmware-name:
| $ref: /schemas/types.yaml#/definitions/string
| const: imx/easrc/easrc-imx8mn.bin
| description: The coefficient table for the filters
|
| fsl,asrc-rate:
| $ref: /schemas/types.yaml#/definitions/uint32
| minimum: 8000
| maximum: 192000
| description: Defines a mutual sample rate used by DPCM Back Ends
|
| fsl,asrc-format:
| $ref: /schemas/types.yaml#/definitions/uint32
| enum: [2, 6, 10, 32, 36]
| default: 2
| description:
| Defines a mutual sample format used by DPCM Back Ends
|
| required:
| - compatible
| - reg
| - interrupts
| - clocks
| - clock-names
| - dmas
| - dma-names
| - firmware-name
| - fsl,asrc-rate
| - fsl,asrc-format
|
| additionalProperties: false
|
| examples:
| - |
| #include <dt-bindings/clock/imx8mn-clock.h>
|
| easrc: easrc@300c0000 {
| compatible = "fsl,imx8mn-easrc";
| reg = <0x300c0000 0x10000>;
| interrupts = <0x0 122 0x4>;
| clocks = <&clk IMX8MN_CLK_ASRC_ROOT>;
| clock-names = "mem";
| dmas = <&sdma2 16 23 0> , <&sdma2 17 23 0>,
| <&sdma2 18 23 0> , <&sdma2 19 23 0>,
| <&sdma2 20 23 0> , <&sdma2 21 23 0>,
| <&sdma2 22 23 0> , <&sdma2 23 23 0>;
| dma-names = "ctx0_rx", "ctx0_tx",
| "ctx1_rx", "ctx1_tx",
| "ctx2_rx", "ctx2_tx",
| "ctx3_rx", "ctx3_tx";
| firmware-name = "imx/easrc/easrc-imx8mn.bin";
| fsl,asrc-rate = <8000>;
| fsl,asrc-format = <2>;
| };
|
|
