From 375bb4df23cda4edac75e46c813c630b6859aa54 Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Thu, 18 Mar 2021 20:16:52 +0800 Subject: [PATCH 399/469] dt-bindings: iio: magnetometer: add DT binding for Voltafield AF8133J Voltafield AF8133J is a quite simple magnetometer produced by Voltafield Technology Corp, with dual power supplies (one for core and one for IO) and a active-low reset pin, but without interrupts. Add a device tree binding for it. Signed-off-by: Icenowy Zheng --- .../iio/magnetometer/voltafield,af8133j.yaml | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/magnetometer/voltafield,af8133j.yaml diff --git a/Documentation/devicetree/bindings/iio/magnetometer/voltafield,af8133j.yaml b/Documentation/devicetree/bindings/iio/magnetometer/voltafield,af8133j.yaml new file mode 100644 index 000000000000..51e1be85c68b --- /dev/null +++ b/Documentation/devicetree/bindings/iio/magnetometer/voltafield,af8133j.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/magnetometer/asahi-kasei,ak8975.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Voltafield AF8133J magnetometer sensor + +maintainers: + - Icenowy Zheng + +properties: + compatible: + - voltafield,af8133j + + reg: + maxItems: 1 + + reset-gpios: + description: | + an pin needed for AF8133J to set the reset state. This should be usually + active low. + + avdd-supply: + description: | + an optional regulator that needs to be on to provide AVDD power (Working + power, usually 3.3V) to the sensor. + + avdd-supply: + description: | + an optional regulator that needs to be on to provide DVDD power (Digital + IO power, 1.8V~AVDD) to the sensor. + + mount-matrix: + description: an optional 3x3 mounting rotation matrix. + +required: + - compatible + - reg + - reset-gpios + +additionalProperties: false + +examples: + - | + #include + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + magnetometer@1c { + compatible = "voltafield,af8133j"; + reg = <0x1c>; + avdd-supply = <®_dldo1>; + dvdd-supply = <®_dldo1>; + reset-gpios = <&pio 1 1 GPIO_ACTIVE_LOW>; + }; + }; -- 2.34.1