| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/sound/fsl,micfil.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: NXP MICFIL Digital Audio Interface (MICFIL) |
| 8 | |
| 9 | maintainers: |
| 10 | - Shengjiu Wang <shengjiu.wang@nxp.com> |
| 11 | |
| 12 | description: | |
| 13 | The MICFIL digital interface provides a 16-bit or 24-bit audio signal |
| 14 | from a PDM microphone bitstream in a configurable output sampling rate. |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 18 | oneOf: |
| 19 | - items: |
| 20 | - enum: |
| 21 | - fsl,imx95-micfil |
| 22 | - const: fsl,imx93-micfil |
| 23 | |
| 24 | - enum: |
| 25 | - fsl,imx8mm-micfil |
| 26 | - fsl,imx8mp-micfil |
| 27 | - fsl,imx93-micfil |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 28 | |
| 29 | reg: |
| 30 | maxItems: 1 |
| 31 | |
| 32 | interrupts: |
| 33 | items: |
| 34 | - description: Digital Microphone interface interrupt |
| 35 | - description: Digital Microphone interface error interrupt |
| 36 | - description: voice activity detector event interrupt |
| 37 | - description: voice activity detector error interrupt |
| 38 | |
| 39 | dmas: |
| 40 | items: |
| 41 | - description: DMA controller phandle and request line for RX |
| 42 | |
| 43 | dma-names: |
| 44 | items: |
| 45 | - const: rx |
| 46 | |
| 47 | clocks: |
| 48 | items: |
| 49 | - description: The ipg clock for register access |
| 50 | - description: internal micfil clock |
| 51 | - description: PLL clock source for 8kHz series |
| 52 | - description: PLL clock source for 11kHz series |
| 53 | - description: External clock 3 |
| 54 | minItems: 2 |
| 55 | |
| 56 | clock-names: |
| 57 | items: |
| 58 | - const: ipg_clk |
| 59 | - const: ipg_clk_app |
| 60 | - const: pll8k |
| 61 | - const: pll11k |
| 62 | - const: clkext3 |
| 63 | minItems: 2 |
| 64 | |
| 65 | "#sound-dai-cells": |
| 66 | const: 0 |
| 67 | |
| 68 | required: |
| 69 | - compatible |
| 70 | - reg |
| 71 | - interrupts |
| 72 | - dmas |
| 73 | - dma-names |
| 74 | - clocks |
| 75 | - clock-names |
| 76 | |
| 77 | additionalProperties: false |
| 78 | |
| 79 | examples: |
| 80 | - | |
| 81 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 82 | #include <dt-bindings/clock/imx8mm-clock.h> |
| 83 | micfil: audio-controller@30080000 { |
| 84 | compatible = "fsl,imx8mm-micfil"; |
| 85 | reg = <0x30080000 0x10000>; |
| 86 | interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>, |
| 87 | <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>, |
| 88 | <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>, |
| 89 | <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>; |
| 90 | clocks = <&clk IMX8MM_CLK_PDM_IPG>, |
| 91 | <&clk IMX8MM_CLK_PDM_ROOT>; |
| 92 | clock-names = "ipg_clk", "ipg_clk_app"; |
| 93 | dmas = <&sdma2 24 25 0>; |
| 94 | dma-names = "rx"; |
| 95 | }; |