Add DTS discription for tas2781 driver code Signed-off-by: Kevin Lu <luminlong@xxxxxxx> --- .../devicetree/bindings/sound/tas2781.yaml | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/tas2781.yaml diff --git a/Documentation/devicetree/bindings/sound/tas2781.yaml b/Documentation/devicetree/bindings/sound/tas2781.yaml new file mode 100644 index 000000000..96fa45bf6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/tas2781.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2022 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/sound/tas2781.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Texas Instruments TAS2781 Smart PA + +maintainers: + - Shenghao Ding <shenghao-ding@xxxxxx> + - Kevin Lu <kevin-lu@xxxxxx> + +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 + - ti,audev + description: | + ti,audev will disable the irq of tas2781. + reg: + maxItems: 1 + description: | + I2C address of the device can be between 0x38 to 0x40. + + reset-gpioN: + maxItems: 4 + description: GPIO used to reset the device. + + ti,topleft-channel: + maxItems: 1 + description: I2C Address for each specific device. + + ti,topright-channel: + maxItems: 1 + + ti,bottomleft-channel: + maxItems: 1 + + ti,bottomright-channel: + maxItems: 1 + + ti,global-address: + maxItems: 1 + description: This item is not mandatory. if the device support gloabel mode, this item should be active. + + ti,irq-gpio: + maxItems: 1 + description: GPIO used to interrupt the device. + + '#sound-dai-cells': + const: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + codec: codec@38 { + compatible = "ti,tas2781"; + reg = <0x38>; + #sound-dai-cells = <1>; + ti,topleft-channel = <0x38>; + ti,topright-channel = <0x39>; + ti,bottomright-channel = <0x3a>; + ti,bottomright-channel = <0x3b>; + ti,global-address = <0x40>; + ti,reset-gpio0 = <&gpio1 10 GPIO_ACTIVE_HIGH>; + ti,reset-gpio1 = <&gpio1 11 GPIO_ACTIVE_HIGH>; + ti,reset-gpio2 = <&gpio1 12 GPIO_ACTIVE_HIGH>; + ti,reset-gpio3 = <&gpio1 13 GPIO_ACTIVE_HIGH>; + ti,irq-gpio = <&gpio1 15 0>; + }; + }; +... -- 2.17.1
