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