1*3e4ecd6cSShenghao Ding# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*3e4ecd6cSShenghao Ding# Copyright (C) 2022 - 2023 Texas Instruments Incorporated 3*3e4ecd6cSShenghao Ding%YAML 1.2 4*3e4ecd6cSShenghao Ding--- 5*3e4ecd6cSShenghao Ding$id: http://devicetree.org/schemas/sound/ti,tas2781.yaml# 6*3e4ecd6cSShenghao Ding$schema: http://devicetree.org/meta-schemas/core.yaml# 7*3e4ecd6cSShenghao Ding 8*3e4ecd6cSShenghao Dingtitle: Texas Instruments TAS2781 SmartAMP 9*3e4ecd6cSShenghao Ding 10*3e4ecd6cSShenghao Dingmaintainers: 11*3e4ecd6cSShenghao Ding - Shenghao Ding <shenghao-ding@ti.com> 12*3e4ecd6cSShenghao Ding 13*3e4ecd6cSShenghao Dingdescription: 14*3e4ecd6cSShenghao Ding The TAS2781 is a mono, digital input Class-D audio amplifier 15*3e4ecd6cSShenghao Ding optimized for efficiently driving high peak power into small 16*3e4ecd6cSShenghao Ding loudspeakers. An integrated on-chip DSP supports Texas Instruments 17*3e4ecd6cSShenghao Ding Smart Amp speaker protection algorithm. The integrated speaker 18*3e4ecd6cSShenghao Ding voltage and current sense provides for real time 19*3e4ecd6cSShenghao Ding monitoring of loudspeaker behavior. 20*3e4ecd6cSShenghao Ding 21*3e4ecd6cSShenghao DingallOf: 22*3e4ecd6cSShenghao Ding - $ref: dai-common.yaml# 23*3e4ecd6cSShenghao Ding 24*3e4ecd6cSShenghao Dingproperties: 25*3e4ecd6cSShenghao Ding compatible: 26*3e4ecd6cSShenghao Ding enum: 27*3e4ecd6cSShenghao Ding - ti,tas2781 28*3e4ecd6cSShenghao Ding 29*3e4ecd6cSShenghao Ding reg: 30*3e4ecd6cSShenghao Ding description: 31*3e4ecd6cSShenghao Ding I2C address, in multiple tas2781s case, all the i2c address 32*3e4ecd6cSShenghao Ding aggreate as one Audio Device to support multiple audio slots. 33*3e4ecd6cSShenghao Ding maxItems: 8 34*3e4ecd6cSShenghao Ding minItems: 1 35*3e4ecd6cSShenghao Ding items: 36*3e4ecd6cSShenghao Ding minimum: 0x38 37*3e4ecd6cSShenghao Ding maximum: 0x3f 38*3e4ecd6cSShenghao Ding 39*3e4ecd6cSShenghao Ding reset-gpios: 40*3e4ecd6cSShenghao Ding maxItems: 1 41*3e4ecd6cSShenghao Ding 42*3e4ecd6cSShenghao Ding interrupts: 43*3e4ecd6cSShenghao Ding maxItems: 1 44*3e4ecd6cSShenghao Ding 45*3e4ecd6cSShenghao Ding '#sound-dai-cells': 46*3e4ecd6cSShenghao Ding const: 0 47*3e4ecd6cSShenghao Ding 48*3e4ecd6cSShenghao Dingrequired: 49*3e4ecd6cSShenghao Ding - compatible 50*3e4ecd6cSShenghao Ding - reg 51*3e4ecd6cSShenghao Ding 52*3e4ecd6cSShenghao DingadditionalProperties: false 53*3e4ecd6cSShenghao Ding 54*3e4ecd6cSShenghao Dingexamples: 55*3e4ecd6cSShenghao Ding - | 56*3e4ecd6cSShenghao Ding #include <dt-bindings/gpio/gpio.h> 57*3e4ecd6cSShenghao Ding i2c { 58*3e4ecd6cSShenghao Ding /* example with quad tas2781s, such as tablet or pad device */ 59*3e4ecd6cSShenghao Ding #address-cells = <1>; 60*3e4ecd6cSShenghao Ding #size-cells = <0>; 61*3e4ecd6cSShenghao Ding quad_tas2781: tas2781@38 { 62*3e4ecd6cSShenghao Ding compatible = "ti,tas2781"; 63*3e4ecd6cSShenghao Ding reg = <0x38>, /* Audio slot 0 */ 64*3e4ecd6cSShenghao Ding <0x3a>, /* Audio slot 1 */ 65*3e4ecd6cSShenghao Ding <0x39>, /* Audio slot 2 */ 66*3e4ecd6cSShenghao Ding <0x3b>; /* Audio slot 3 */ 67*3e4ecd6cSShenghao Ding 68*3e4ecd6cSShenghao Ding #sound-dai-cells = <0>; 69*3e4ecd6cSShenghao Ding reset-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>; 70*3e4ecd6cSShenghao Ding interrupt-parent = <&gpio1>; 71*3e4ecd6cSShenghao Ding interrupts = <15>; 72*3e4ecd6cSShenghao Ding }; 73*3e4ecd6cSShenghao Ding }; 74*3e4ecd6cSShenghao Ding... 75