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.
28 - description: Digital Microphone interface interrupt
29 - description: Digital Microphone interface error interrupt
30 - description: voice activity detector event interrupt
31 - description: voice activity detector error interrupt
35 - description: DMA controller phandle and request line for RX
43 - description: The ipg clock for register access
44 - description: internal micfil clock
45 - description: PLL clock source for 8kHz series
46 - description: PLL clock source for 11kHz series
47 - description: External clock 3
71 additionalProperties: false
75 #include <dt-bindings/interrupt-controller/arm-gic.h>
76 #include <dt-bindings/clock/imx8mm-clock.h>
77 micfil: audio-controller@30080000 {
78 compatible = "fsl,imx8mm-micfil";
79 reg = <0x30080000 0x10000>;
80 interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
81 <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
82 <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
83 <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
84 clocks = <&clk IMX8MM_CLK_PDM_IPG>,
85 <&clk IMX8MM_CLK_PDM_ROOT>;
86 clock-names = "ipg_clk", "ipg_clk_app";
87 dmas = <&sdma2 24 25 0>;