From: ChiYuan Huang <cy_huang@xxxxxxxxxxx> Add initial bindings for Richtek rt9120 audio amplifier. Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx> --- .../devicetree/bindings/sound/richtek,rt9120.yaml | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/richtek,rt9120.yaml diff --git a/Documentation/devicetree/bindings/sound/richtek,rt9120.yaml b/Documentation/devicetree/bindings/sound/richtek,rt9120.yaml new file mode 100644 index 00000000..5655ca5 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/richtek,rt9120.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/richtek,rt9120.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Richtek RT9120 Class-D audio amplifier + +maintainers: + - ChiYuan Huang <cy_huang@xxxxxxxxxxx> + +description: | + The RT9120 is a high efficiency, I2S-input, stereo audio power amplifier + delivering 2*20W into 8 Ohm BTL speaker loads. It supports the wide input + voltage range from 4.5V to 26.4V to meet the need on most common + applications like as TV, monitors. home entertainment, electronic music + equipment. + +properties: + compatible: + enum: + - richtek,rt9120 + + reg: + description: I2C device address + maxItems: 1 + + pwdnn-gpios: + description: GPIO used for power down, low active + maxItems: 1 + + dvdd-supply: + description: | + Supply for the default on DVDD power, voltage domain must be 3P3V or 1P8V + + '#sound-dai-cells': + const: 0 + +required: + - compatible + - reg + - dvdd-supply + - '#sound-dai-cells' + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + rt9120@1a { + compatible = "richtek,rt9120"; + reg = <0x1a>; + pwdnn-gpios = <&gpio26 2 0>; + dvdd-supply = <&vdd_io_reg>; + #sound-dai-cells = <0>; + }; + }; -- 2.7.4
