99 lines
2.5 KiB
YAML
99 lines
2.5 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/sc27xx-fg.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Spreadtrum SC27XX PMICs Fuel Gauge Unit Power Supply
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maintainers:
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- Sebastian Reichel <sre@kernel.org>
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allOf:
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- $ref: power-supply.yaml#
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properties:
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compatible:
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enum:
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- sprd,sc2720-fgu
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- sprd,sc2721-fgu
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- sprd,sc2723-fgu
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- sprd,sc2730-fgu
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- sprd,sc2731-fgu
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reg:
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maxItems: 1
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battery-detect-gpios:
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maxItems: 1
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io-channels:
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items:
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- description: Battery Temperature ADC
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- description: Battery Charge Voltage ADC
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io-channel-names:
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items:
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- const: bat-temp
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- const: charge-vol
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nvmem-cells:
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maxItems: 1
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description: Calibration cells provided by eFuse device
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nvmem-cell-names:
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const: fgu_calib
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sprd,calib-resistance-micro-ohms:
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description: real resistance of coulomb counter chip in micro Ohms
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monitored-battery: true
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required:
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- compatible
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- reg
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- battery-detect-gpios
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- io-channels
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- io-channel-names
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- nvmem-cells
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- nvmem-cell-names
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- sprd,calib-resistance-micro-ohms
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- monitored-battery
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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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bat: battery {
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compatible = "simple-battery";
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charge-full-design-microamp-hours = <1900000>;
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constant-charge-voltage-max-microvolt = <4350000>;
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ocv-capacity-celsius = <20>;
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ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>,
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<4022000 85>, <3983000 80>, <3949000 75>,
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<3917000 70>, <3889000 65>, <3864000 60>,
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<3835000 55>, <3805000 50>, <3787000 45>,
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<3777000 40>, <3773000 35>, <3770000 30>,
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<3765000 25>, <3752000 20>, <3724000 15>,
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<3680000 10>, <3605000 5>, <3400000 0>;
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// ...
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};
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pmic {
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#address-cells = <1>;
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#size-cells = <0>;
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battery@a00 {
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compatible = "sprd,sc2731-fgu";
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reg = <0xa00>;
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battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
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io-channels = <&pmic_adc 5>, <&pmic_adc 14>;
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io-channel-names = "bat-temp", "charge-vol";
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nvmem-cells = <&fgu_calib>;
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nvmem-cell-names = "fgu_calib";
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monitored-battery = <&bat>;
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sprd,calib-resistance-micro-ohms = <21500>;
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};
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};
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