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Some BH1750 sensors require a hardware reset via GPIO before they can be properly detected on the I2C bus. Add a new reset-gpios property to the binding to support this functionality. The reset-gpios property allows specifying a GPIO that will be toggled during driver initialization to reset the sensor. Signed-off-by: Sergio Perez <sergio@pereznus.es> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20250324135920.6802-1-sergio@pereznus.es Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
52 lines
917 B
YAML
52 lines
917 B
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/light/bh1750.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ROHM BH1750 ambient light sensor
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maintainers:
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- Tomasz Duszynski <tduszyns@gmail.com>
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description: |
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Ambient light sensor with an i2c interface.
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properties:
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compatible:
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enum:
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- rohm,bh1710
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- rohm,bh1715
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- rohm,bh1721
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- rohm,bh1750
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- rohm,bh1751
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reg:
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maxItems: 1
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reset-gpios:
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description: GPIO connected to the DVI reset pin (active low)
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maxItems: 1
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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light-sensor@23 {
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compatible = "rohm,bh1750";
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reg = <0x23>;
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reset-gpios = <&gpio2 17 GPIO_ACTIVE_LOW>;
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};
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};
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...
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