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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 - 2023 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,tas2781.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TAS2781 SmartAMP
+
+maintainers:
+ - Shenghao Ding <shenghao-ding@ti.com>
+ - Kevin Lu <kevin-lu@ti.com>
+
+description: |
+ The TAS2781 is a mono, digital input Class-D audio amplifier
+ optimized for efficiently driving high peak power into small
+ loudspeakers. Integrated an on-chip DSP supports Texas Instruments
+ Smart Amp speaker protection algorithm. The integrated speaker
+ voltage and current sense provides for real time
+ monitoring of loudspeaker behavior.
+
+properties:
+ compatible:
+ enum:
+ - ti,tas2781
+
+ reg:
+ maxItems: 1
+ description: |
+ I2C address of the device can be in range from 0x38 to 0x40.
+
+ reset-gpios:
+ maxItems: 1
+ description: |
+ A GPIO line handling reset of the chip. As the line is active high,
+ it should be marked GPIO_ACTIVE_HIGH (see ../gpio/gpio.txt)
+
+ interrupts:
+ maxItems: 1
+
+ ti,audio-slots:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 4
+ description: |
+ I2c address of the device for different audio slots,
+ useless in mono case.
+
+ ti,broadcast-addr:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Generic i2c address for all the tas2781 devices in
+ purpose of I2C broadcast during the multi-device
+ writes, useless in mono case.
+
+ '#sound-dai-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ /* example with quad support, such as tablet or pad device */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ quad: codec@38 {
+ compatible = "ti,tas2781";
+ reg = <0x38>;
+ #sound-dai-cells = <1>;
+ reset-gpios = < &gpio1 10 GPIO_ACTIVE_HIGH >;
+ interrupt-parent = <&gpio1>;
+ interrupts = <15>;
+ ti,audio-slots = < 0x38 /* topleft-channel */
+ 0x39 /* topright-channel */
+ 0x3a /* bottomleft-channel */
+ 0x3b /* bottomright-channel */
+ >;
+ ti,broadcast-addr = <0x40>;
+ };
+ };
+...
Create tas2781.yaml for tas2781 driver. Signed-off-by: Shenghao Ding <13916275206@139.com> --- Changes to be committed: new file: Documentation/devicetree/bindings/sound/ti,tas2781.yaml --- .../devicetree/bindings/sound/ti,tas2781.yaml | 87 +++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/ti,tas2781.yaml