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1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)2# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries3%YAML 1.24---5$id: http://devicetree.org/schemas/sound/atmel,sama5d2-pdmic.yaml#6$schema: http://devicetree.org/meta-schemas/core.yaml#7 8title: Atmel PDMIC decoder9 10maintainers:11 - Claudiu Beznea <claudiu.beznea@microchip.com>12 13description:14 Atmel Pulse Density Modulation Interface Controller15 (PDMIC) peripheral is a mono PDM decoder module16 that decodes an incoming PDM sample stream.17 18properties:19 compatible:20 const: atmel,sama5d2-pdmic21 22 reg:23 maxItems: 124 25 interrupts:26 maxItems: 127 28 clocks:29 items:30 - description: peripheral clock31 - description: generated clock32 33 clock-names:34 items:35 - const: pclk36 - const: gclk37 38 dmas:39 maxItems: 140 41 dma-names:42 const: rx43 44 atmel,mic-min-freq:45 $ref: /schemas/types.yaml#/definitions/uint3246 description:47 The minimal frequency that the microphone supports.48 49 atmel,mic-max-freq:50 $ref: /schemas/types.yaml#/definitions/uint3251 description:52 The maximal frequency that the microphone supports.53 54 atmel,model:55 $ref: /schemas/types.yaml#/definitions/string56 default: PDMIC57 description: The user-visible name of this sound card.58 59 atmel,mic-offset:60 $ref: /schemas/types.yaml#/definitions/int3261 default: 062 description: The offset that should be added.63 64required:65 - compatible66 - reg67 - interrupts68 - dmas69 - dma-names70 - clock-names71 - clocks72 - atmel,mic-min-freq73 - atmel,mic-max-freq74 75additionalProperties: false76 77examples:78 - |79 #include <dt-bindings/dma/at91.h>80 #include <dt-bindings/interrupt-controller/arm-gic.h>81 82 pdmic: sound@f8018000 {83 compatible = "atmel,sama5d2-pdmic";84 reg = <0xf8018000 0x124>;85 interrupts = <48 IRQ_TYPE_LEVEL_HIGH 7>;86 dmas = <&dma087 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)88 | AT91_XDMAC_DT_PERID(50))>;89 dma-names = "rx";90 clocks = <&pdmic_clk>, <&pdmic_gclk>;91 clock-names = "pclk", "gclk";92 pinctrl-names = "default";93 pinctrl-0 = <&pinctrl_pdmic_default>;94 atmel,model = "PDMIC@sama5d2_xplained";95 atmel,mic-min-freq = <1000000>;96 atmel,mic-max-freq = <3246000>;97 atmel,mic-offset = <0x0>;98 };99