1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/sound/fsl,micfil.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NXP MICFIL Digital Audio Interface (MICFIL)
10 - Shengjiu Wang <shengjiu.wang@nxp.com>
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.
27 - description: Digital Microphone interface interrupt
28 - description: Digital Microphone interface error interrupt
29 - description: voice activity detector event interrupt
30 - description: voice activity detector error interrupt
34 - description: DMA controller phandle and request line for RX
42 - description: The ipg clock for register access
43 - description: internal micfil clock
44 - description: PLL clock source for 8kHz series
45 - description: PLL clock source for 11kHz series
46 - description: External clock 3
67 additionalProperties: false
71 #include <dt-bindings/interrupt-controller/arm-gic.h>
72 #include <dt-bindings/clock/imx8mm-clock.h>
73 micfil: audio-controller@30080000 {
74 compatible = "fsl,imx8mm-micfil";
75 reg = <0x30080000 0x10000>;
76 interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
77 <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
78 <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
79 <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
80 clocks = <&clk IMX8MM_CLK_PDM_IPG>,
81 <&clk IMX8MM_CLK_PDM_ROOT>;
82 clock-names = "ipg_clk", "ipg_clk_app";
83 dmas = <&sdma2 24 25 0>;