1*ca0e30b1SRyan Wanner# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2*ca0e30b1SRyan Wanner# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries 3*ca0e30b1SRyan Wanner%YAML 1.2 4*ca0e30b1SRyan Wanner--- 5*ca0e30b1SRyan Wanner$id: http://devicetree.org/schemas/sound/atmel,sama5d2-pdmic.yaml# 6*ca0e30b1SRyan Wanner$schema: http://devicetree.org/meta-schemas/core.yaml# 7*ca0e30b1SRyan Wanner 8*ca0e30b1SRyan Wannertitle: Atmel PDMIC decoder 9*ca0e30b1SRyan Wanner 10*ca0e30b1SRyan Wannermaintainers: 11*ca0e30b1SRyan Wanner - Claudiu Beznea <claudiu.beznea@microchip.com> 12*ca0e30b1SRyan Wanner 13*ca0e30b1SRyan Wannerdescription: 14*ca0e30b1SRyan Wanner Atmel Pulse Density Modulation Interface Controller 15*ca0e30b1SRyan Wanner (PDMIC) peripheral is a mono PDM decoder module 16*ca0e30b1SRyan Wanner that decodes an incoming PDM sample stream. 17*ca0e30b1SRyan Wanner 18*ca0e30b1SRyan Wannerproperties: 19*ca0e30b1SRyan Wanner compatible: 20*ca0e30b1SRyan Wanner const: atmel,sama5d2-pdmic 21*ca0e30b1SRyan Wanner 22*ca0e30b1SRyan Wanner reg: 23*ca0e30b1SRyan Wanner maxItems: 1 24*ca0e30b1SRyan Wanner 25*ca0e30b1SRyan Wanner interrupts: 26*ca0e30b1SRyan Wanner maxItems: 1 27*ca0e30b1SRyan Wanner 28*ca0e30b1SRyan Wanner clocks: 29*ca0e30b1SRyan Wanner items: 30*ca0e30b1SRyan Wanner - description: peripheral clock 31*ca0e30b1SRyan Wanner - description: generated clock 32*ca0e30b1SRyan Wanner 33*ca0e30b1SRyan Wanner clock-names: 34*ca0e30b1SRyan Wanner items: 35*ca0e30b1SRyan Wanner - const: pclk 36*ca0e30b1SRyan Wanner - const: gclk 37*ca0e30b1SRyan Wanner 38*ca0e30b1SRyan Wanner dmas: 39*ca0e30b1SRyan Wanner maxItems: 1 40*ca0e30b1SRyan Wanner 41*ca0e30b1SRyan Wanner dma-names: 42*ca0e30b1SRyan Wanner const: rx 43*ca0e30b1SRyan Wanner 44*ca0e30b1SRyan Wanner atmel,mic-min-freq: 45*ca0e30b1SRyan Wanner $ref: /schemas/types.yaml#/definitions/uint32 46*ca0e30b1SRyan Wanner description: 47*ca0e30b1SRyan Wanner The minimal frequency that the microphone supports. 48*ca0e30b1SRyan Wanner 49*ca0e30b1SRyan Wanner atmel,mic-max-freq: 50*ca0e30b1SRyan Wanner $ref: /schemas/types.yaml#/definitions/uint32 51*ca0e30b1SRyan Wanner description: 52*ca0e30b1SRyan Wanner The maximal frequency that the microphone supports. 53*ca0e30b1SRyan Wanner 54*ca0e30b1SRyan Wanner atmel,model: 55*ca0e30b1SRyan Wanner $ref: /schemas/types.yaml#/definitions/string 56*ca0e30b1SRyan Wanner default: PDMIC 57*ca0e30b1SRyan Wanner description: The user-visible name of this sound card. 58*ca0e30b1SRyan Wanner 59*ca0e30b1SRyan Wanner atmel,mic-offset: 60*ca0e30b1SRyan Wanner $ref: /schemas/types.yaml#/definitions/int32 61*ca0e30b1SRyan Wanner default: 0 62*ca0e30b1SRyan Wanner description: The offset that should be added. 63*ca0e30b1SRyan Wanner 64*ca0e30b1SRyan Wannerrequired: 65*ca0e30b1SRyan Wanner - compatible 66*ca0e30b1SRyan Wanner - reg 67*ca0e30b1SRyan Wanner - interrupts 68*ca0e30b1SRyan Wanner - dmas 69*ca0e30b1SRyan Wanner - dma-names 70*ca0e30b1SRyan Wanner - clock-names 71*ca0e30b1SRyan Wanner - clocks 72*ca0e30b1SRyan Wanner - atmel,mic-min-freq 73*ca0e30b1SRyan Wanner - atmel,mic-max-freq 74*ca0e30b1SRyan Wanner 75*ca0e30b1SRyan WanneradditionalProperties: false 76*ca0e30b1SRyan Wanner 77*ca0e30b1SRyan Wannerexamples: 78*ca0e30b1SRyan Wanner - | 79*ca0e30b1SRyan Wanner #include <dt-bindings/dma/at91.h> 80*ca0e30b1SRyan Wanner #include <dt-bindings/interrupt-controller/arm-gic.h> 81*ca0e30b1SRyan Wanner 82*ca0e30b1SRyan Wanner pdmic: sound@f8018000 { 83*ca0e30b1SRyan Wanner compatible = "atmel,sama5d2-pdmic"; 84*ca0e30b1SRyan Wanner reg = <0xf8018000 0x124>; 85*ca0e30b1SRyan Wanner interrupts = <48 IRQ_TYPE_LEVEL_HIGH 7>; 86*ca0e30b1SRyan Wanner dmas = <&dma0 87*ca0e30b1SRyan Wanner (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) 88*ca0e30b1SRyan Wanner | AT91_XDMAC_DT_PERID(50))>; 89*ca0e30b1SRyan Wanner dma-names = "rx"; 90*ca0e30b1SRyan Wanner clocks = <&pdmic_clk>, <&pdmic_gclk>; 91*ca0e30b1SRyan Wanner clock-names = "pclk", "gclk"; 92*ca0e30b1SRyan Wanner pinctrl-names = "default"; 93*ca0e30b1SRyan Wanner pinctrl-0 = <&pinctrl_pdmic_default>; 94*ca0e30b1SRyan Wanner atmel,model = "PDMIC@sama5d2_xplained"; 95*ca0e30b1SRyan Wanner atmel,mic-min-freq = <1000000>; 96*ca0e30b1SRyan Wanner atmel,mic-max-freq = <3246000>; 97*ca0e30b1SRyan Wanner atmel,mic-offset = <0x0>; 98*ca0e30b1SRyan Wanner }; 99