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Merge "dt-bindings: batterydata: Add bindings for properties used by QBG"
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@ -39,6 +39,13 @@ Profile data node required properties:
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of coefficients used in hardware state machines and thus
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influencing the final output of the state of charge read
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by software.
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- qcom,capacity : Maximum capacity of the battery (in mAH).
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- qcom,checksum : Checksum used to determine if loaded battery profile is valid.
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- qcom,recharge-soc-delta : Percentage of SOC delta dropped after end of charge
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to enable recharge.
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- qcom,recharge-vflt-delta : Delta in Vfloat dropped from regular vfloat in
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recharge.
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- qcom,recharge-iterm-ma : Termination current (in mA) in recharge.
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Profile data node optional properties:
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- qcom,chg-rslow-comp-c1 : A constant for rslow compensation in the fuel gauge.
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@ -198,6 +205,16 @@ Lookup table required properties:
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the size of qcom,lut-row-legend if it's a 2-dimensional
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table. The data should be in a flattened row-major
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representation.
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- qcom,bp-c-table0 : LUT table of the battery used for PON SOC estimation
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during battery charge.
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- qcom,bp-d-table0 : LUT table of the battery used for PON SOC estimation
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during battery discharge.
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- qcom,bp-c-table-X : LUT tables of the battery at different temperatures
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used for SOC estimation during battery charge. Value
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of X starts from 1.
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- qcom,bp-d-table-X : LUT tables of the battery at different temperatures
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used for SOC estimation during battery charge. Value
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of X starts from 1.
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Lookup table optional properties:
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- qcom,lut-row-legend : An array that encodes the legend of the lookup table's rows.
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110
bindings/power/supply/qcom/qcom,qbg.yaml
Normal file
110
bindings/power/supply/qcom/qcom,qbg.yaml
Normal file
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@ -0,0 +1,110 @@
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/bindings/power/supply/qcom/qcom,qbg.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Technologies, Inc. Battery Gauge (QBG) binding
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maintainers:
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- Shyam Kumar Thella <sthella@qti.qualcomm.com>
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description: |
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Qualcomm Technologies, Inc. Battery Gauge (QBG) uses the periodic samples of
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battery voltage and current to determine the battery state-of-charge (SOC)
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and supports other battery management features.
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properties:
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compatible:
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const: qcom,qbg
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reg:
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description: Base address of QBG MAIN peripheral.
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maxItems: 1
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interrupts:
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description: Specifies the interrupts for nvmem devices used by QBG.
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maxItems: 1
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interrupt-names:
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description: Specifies the interrupt names for nvmem devices used by QBG.
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minItems: 1
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items:
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- const: qbg-sdam
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$ref: /schemas/types.yaml#/definitions/string-array
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qcom,num-data-sdams:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Number of SDAMs used for storing QBG FIFO data.
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qcom,sdam-base:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Base address of QBG SDAM peripheral.
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qcom,vbat-cutoff-mv:
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allOf:
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- $ref: "/schemas/types.yaml#/definitions/uint32"
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description: The battery voltage threshold (in mV) at which the battery
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power cuts off. The SOC is forced to 0 when battery voltage reaches
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this value.
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default: 3100
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qcom,ibat-cutoff-ma:
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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description: The battery current threshold (in mA) at which the battery
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power cuts off. The SOC is forced to 0 when battery current reaches
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this value.
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default: 150
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qcom,vph-min-mv:
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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description: Minimum sustainable system power (in mV).
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default: 2700
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qcom,iterm-ma:
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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description: The battery current (in mA) at which the QBG algorithm
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converges the SOC to 100% during charging and can be used to terminate
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charging.
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default: 100
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qcom,rconn-mohm:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Resistance of the battery connector in mOhms.
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required:
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- compatible
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- reg
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- interrupt-names
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- interrupts
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- qcom,num-data-sdams
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- qcom,sdam-base
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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spmi_bus {
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#address-cells = <2>;
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#size-cells = <0>;
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interrupt-controller;
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#interrupt-cells = <4>;
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qcom,pm5100@0 {
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#address-cells = <1>;
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#size-cells = <0>;
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qbg@4f00 {
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compatible = "qcom,qbg";
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reg = <0x4f00>;
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#address-cells = <1>;
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#size-cells = <1>;
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interrupt-names = "qbg-sdam";
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interrupts = <0x0 0x76 0x1 IRQ_TYPE_EDGE_RISING>;
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qcom,num-data-sdams = <6>;
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qcom,sdam-base = <0x7600>;
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};
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};
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};
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...
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