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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <zephyr/dt-bindings/adc/adc.h>
/ {
named-adc-channels {
compatible = "named-adc-channels";
vbus {
enum-name = "ADC_VBUS";
io-channels = <&adc0 1>;
/* Measure VBUS through a 1/10 voltage divider */
mul = <10>;
};
amon_bmon {
enum-name = "ADC_AMON_BMON";
io-channels = <&adc0 2>;
/*
* Adapter current output or battery charging/
* discharging current (uV) 18x amplification on
* charger side.
*/
mul = <1000>;
div = <18>;
};
psys {
enum-name = "ADC_PSYS";
io-channels = <&adc0 3>;
/*
* ISL9238 PSYS output is 1.44 uA/W over 5.6K resistor,
* to read 0.8V @ 99 W, i.e. 124000 uW/mV.
*/
mul = <124000>;
};
};
};
&adc0 {
status = "okay";
pinctrl-0 = <&adc0_chan1_gp44
&adc0_chan2_gp43
&adc0_chan3_gp42>;
pinctrl-names = "default";
};
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