From 70ba14cf6dfd7ebd1275562bb9637b8d0ddb8f49 Mon Sep 17 00:00:00 2001 From: Vincent Knecht Date: Mon, 20 Dec 2021 20:37:24 +0100 Subject: [PATCH] ASoC: dt-bindings: codecs: Add bindings for ak4375 AK4375 is an audio DAC with headphones amplifier controlled via I2C. Add simple device tree bindings that describe how to set it up. Reviewed-by: Rob Herring Signed-off-by: Vincent Knecht Link: https://lore.kernel.org/r/20211220193725.2650356-1-vincent.knecht@mailoo.org Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/ak4375.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/ak4375.yaml diff --git a/Documentation/devicetree/bindings/sound/ak4375.yaml b/Documentation/devicetree/bindings/sound/ak4375.yaml new file mode 100644 index 000000000000..f1d5074a024d --- /dev/null +++ b/Documentation/devicetree/bindings/sound/ak4375.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/ak4375.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AK4375 DAC and headphones amplifier Device Tree Bindings + +maintainers: + - Vincent Knecht + +properties: + compatible: + const: asahi-kasei,ak4375 + + reg: + maxItems: 1 + + '#sound-dai-cells': + const: 0 + + avdd-supply: + description: regulator phandle for the AVDD power supply. + + tvdd-supply: + description: regulator phandle for the TVDD power supply. + + pdn-gpios: + description: optional GPIO to set the PDN pin. + +required: + - compatible + - reg + - '#sound-dai-cells' + - avdd-supply + - tvdd-supply + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + headphones: audio-codec@10 { + compatible = "asahi-kasei,ak4375"; + reg = <0x10>; + avdd-supply = <®_headphones_avdd>; + tvdd-supply = <&pm8916_l6>; + pdn-gpios = <&msmgpio 114 GPIO_ACTIVE_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&headphones_pdn_default>; + #sound-dai-cells = <0>; + }; + }; -- 2.20.1