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