43 lines
1.7 KiB
Plaintext
43 lines
1.7 KiB
Plaintext
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* Capella CM3217 ambient light sensor
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nvs_ drivers use the NVidia Sensor (NVS) framework.
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See the nvs.txt documentation for NVS DT capabilities.
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Required properties:
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- compatible: must be "capella,cm3217"
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- reg: i2c address of the device. It should be 0x10.
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Optional properties:
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- illuminance,integration-time: minimum sampling period in nano seconds.
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default: ""480000""
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- illuminance,max-range: maximum range of this sensor's value in SI units.
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default: "78643.2"
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- illuminance,resolution: conversion factor from sensor raw units to lux.
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default: "307"
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- illuminance,power-consumed: rough estimate of this sensor's power consumption in mA.
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default: "1670"
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- status: set to "ok" or "okay" for normal operation. Set to anything else
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to unload the driver without ever communicating with the device.
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Note: The "anything else" above is typically "disabled".
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Since the driver will unload without communicating with the device, the
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device will be left in its POR state.
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This device's POR comes up in an operational mode and will draw power.
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If it is desired to unload the driver leaving the device in a low power
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sleep state, then use the individual sensor disable mechanism below.
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- light_disable: Setting this property to <1> will disable the device and
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unload the driver.
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- vdd-supply: regulator supply for the chip
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Note: This is required if the driver is to control the regulator.
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Example:
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cm3217@10 {
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compatible = "capella,cm3217";
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reg = <0x10>;
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vdd-supply = <&palmas_smps9>;
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illuminance,integration-time = "480000";
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illuminance,max-range = "78643.2";
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illuminance,resolution = "7675";
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illuminance,power-consumed = "1670"; /* milli Watt */
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};
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