18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 28c2ecf20Sopenharmony_ci%YAML 1.2 38c2ecf20Sopenharmony_ci--- 48c2ecf20Sopenharmony_ci$id: http://devicetree.org/schemas/sound/nvidia,tegra210-dmic.yaml# 58c2ecf20Sopenharmony_ci$schema: http://devicetree.org/meta-schemas/core.yaml# 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_cititle: Tegra210 DMIC Controller Device Tree Bindings 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_cidescription: | 108c2ecf20Sopenharmony_ci The Digital MIC (DMIC) Controller is used to interface with Pulse 118c2ecf20Sopenharmony_ci Density Modulation (PDM) input devices. It converts PDM signals to 128c2ecf20Sopenharmony_ci Pulse Coded Modulation (PCM) signals. DMIC can be viewed as a PDM 138c2ecf20Sopenharmony_ci receiver. 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_cimaintainers: 168c2ecf20Sopenharmony_ci - Jon Hunter <jonathanh@nvidia.com> 178c2ecf20Sopenharmony_ci - Sameer Pujar <spujar@nvidia.com> 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ciproperties: 208c2ecf20Sopenharmony_ci $nodename: 218c2ecf20Sopenharmony_ci pattern: "^dmic@[0-9a-f]*$" 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci compatible: 248c2ecf20Sopenharmony_ci oneOf: 258c2ecf20Sopenharmony_ci - const: nvidia,tegra210-dmic 268c2ecf20Sopenharmony_ci - items: 278c2ecf20Sopenharmony_ci - enum: 288c2ecf20Sopenharmony_ci - nvidia,tegra194-dmic 298c2ecf20Sopenharmony_ci - nvidia,tegra186-dmic 308c2ecf20Sopenharmony_ci - const: nvidia,tegra210-dmic 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci reg: 338c2ecf20Sopenharmony_ci maxItems: 1 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci clocks: 368c2ecf20Sopenharmony_ci maxItems: 1 378c2ecf20Sopenharmony_ci 388c2ecf20Sopenharmony_ci clock-names: 398c2ecf20Sopenharmony_ci const: dmic 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci assigned-clocks: 428c2ecf20Sopenharmony_ci maxItems: 1 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ci assigned-clock-parents: 458c2ecf20Sopenharmony_ci maxItems: 1 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ci assigned-clock-rates: 488c2ecf20Sopenharmony_ci maxItems: 1 498c2ecf20Sopenharmony_ci 508c2ecf20Sopenharmony_ci sound-name-prefix: 518c2ecf20Sopenharmony_ci pattern: "^DMIC[1-9]$" 528c2ecf20Sopenharmony_ci $ref: /schemas/types.yaml#/definitions/string 538c2ecf20Sopenharmony_ci description: 548c2ecf20Sopenharmony_ci used as prefix for sink/source names of the component. Must be a 558c2ecf20Sopenharmony_ci unique string among multiple instances of the same component. 568c2ecf20Sopenharmony_ci The name can be "DMIC1" or "DMIC2" ... "DMICx", where x depends 578c2ecf20Sopenharmony_ci on the maximum available instances on a Tegra SoC. 588c2ecf20Sopenharmony_ci 598c2ecf20Sopenharmony_cirequired: 608c2ecf20Sopenharmony_ci - compatible 618c2ecf20Sopenharmony_ci - reg 628c2ecf20Sopenharmony_ci - clocks 638c2ecf20Sopenharmony_ci - clock-names 648c2ecf20Sopenharmony_ci - assigned-clocks 658c2ecf20Sopenharmony_ci - assigned-clock-parents 668c2ecf20Sopenharmony_ci 678c2ecf20Sopenharmony_ciadditionalProperties: false 688c2ecf20Sopenharmony_ci 698c2ecf20Sopenharmony_ciexamples: 708c2ecf20Sopenharmony_ci - | 718c2ecf20Sopenharmony_ci #include<dt-bindings/clock/tegra210-car.h> 728c2ecf20Sopenharmony_ci 738c2ecf20Sopenharmony_ci dmic@702d4000 { 748c2ecf20Sopenharmony_ci compatible = "nvidia,tegra210-dmic"; 758c2ecf20Sopenharmony_ci reg = <0x702d4000 0x100>; 768c2ecf20Sopenharmony_ci clocks = <&tegra_car TEGRA210_CLK_DMIC1>; 778c2ecf20Sopenharmony_ci clock-names = "dmic"; 788c2ecf20Sopenharmony_ci assigned-clocks = <&tegra_car TEGRA210_CLK_DMIC1>; 798c2ecf20Sopenharmony_ci assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>; 808c2ecf20Sopenharmony_ci assigned-clock-rates = <3072000>; 818c2ecf20Sopenharmony_ci sound-name-prefix = "DMIC1"; 828c2ecf20Sopenharmony_ci }; 838c2ecf20Sopenharmony_ci 848c2ecf20Sopenharmony_ci... 85