| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/power/supply/qcom,pm8941-charger.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Qualcomm Switch-Mode Battery Charger and Boost |
| |
| maintainers: |
| - Sebastian Reichel <sre@kernel.org> |
| |
| properties: |
| compatible: |
| const: qcom,pm8941-charger |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| items: |
| - description: charge done |
| - description: charge fast mode |
| - description: charge trickle mode |
| - description: battery temperature ok |
| - description: battery present |
| - description: charger disconnected |
| - description: USB-in valid |
| - description: DC-in valid |
| |
| interrupt-names: |
| items: |
| - const: chg-done |
| - const: chg-fast |
| - const: chg-trkl |
| - const: bat-temp-ok |
| - const: bat-present |
| - const: chg-gone |
| - const: usb-valid |
| - const: dc-valid |
| |
| qcom,fast-charge-current-limit: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 100000 |
| maximum: 3000000 |
| description: Maximum charge current in uA; May be clamped to safety limits; Defaults to 1A |
| |
| qcom,fast-charge-low-threshold-voltage: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 2100000 |
| maximum: 3600000 |
| description: | |
| Battery voltage limit in uV above which fast charging may operate; Defaults to 3.2V |
| Below this value linear or switch-mode auto-trickle-charging will operate. |
| |
| qcom,fast-charge-high-threshold-voltage: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 3240000 |
| maximum: 5000000 |
| description: | |
| Battery voltage limit in uV below which fast charging may operate; Defaults to 4.2V |
| The fast charger will attempt to charge the battery to this voltage. |
| May be clamped to safety limits. |
| |
| qcom,fast-charge-safe-voltage: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 3240000 |
| maximum: 5000000 |
| description: | |
| Maximum safe battery voltage in uV; May be pre-set by bootloader, in which case, |
| setting this will harmlessly fail. The property 'fast-charge-high-watermark' will |
| be clamped by this value. Defaults to 4.2V. |
| |
| qcom,fast-charge-safe-current: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 100000 |
| maximum: 3000000 |
| description: | |
| Maximum safe battery charge current in uA; May pre-set by bootloader, in which case, |
| setting this will harmlessly fail. The property 'qcom,fast-charge-current-limit' |
| will be clamped by this value. Defaults to 1A. |
| |
| qcom,auto-recharge-threshold-voltage: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 3240000 |
| maximum: 5000000 |
| description: | |
| Battery voltage limit in uV below which auto-recharge functionality will restart charging |
| after end-of-charge; The high cutoff limit for auto-recharge is 5% above this value. |
| Defaults to 4.1V. |
| |
| qcom,minimum-input-voltage: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 4200000 |
| maximum: 9600000 |
| description: | |
| Input voltage level in uV above which charging may operate. Defaults to 4.3V. |
| |
| qcom,dc-current-limit: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 100000 |
| maximum: 2500000 |
| description: | |
| Default DC charge current limit in uA. Defaults to 100mA. |
| |
| qcom,disable-dc: |
| type: boolean |
| description: Disable DC charger |
| |
| qcom,jeita-extended-temp-range: |
| type: boolean |
| description: | |
| Enable JEITA extended temperature range; This does *not* adjust the maximum charge |
| voltage or current in the extended temperature range. It only allows charging when |
| the battery is in the extended temperature range. Voltage/current regulation must |
| be done externally to fully comply with the JEITA safety guidelines if this flag |
| is set. |
| |
| usb-otg-in-supply: |
| description: Reference to the regulator supplying power to the USB_OTG_IN pin. |
| |
| otg-vbus: |
| type: object |
| description: | |
| This node defines a regulator used to control the direction of VBUS voltage. |
| Specifically whether to supply voltage to VBUS for host mode operation of the OTG port, |
| or allow input voltage from external VBUS for charging. In the hardware, the supply for |
| this regulator comes from usb_otg_in-supply. |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - interrupt-names |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/irq.h> |
| pmic { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| charger@1000 { |
| compatible = "qcom,pm8941-charger"; |
| reg = <0x1000>; |
| interrupts = <0x0 0x10 7 IRQ_TYPE_EDGE_BOTH>, |
| <0x0 0x10 5 IRQ_TYPE_EDGE_BOTH>, |
| <0x0 0x10 4 IRQ_TYPE_EDGE_BOTH>, |
| <0x0 0x12 1 IRQ_TYPE_EDGE_BOTH>, |
| <0x0 0x12 0 IRQ_TYPE_EDGE_BOTH>, |
| <0x0 0x13 2 IRQ_TYPE_EDGE_BOTH>, |
| <0x0 0x13 1 IRQ_TYPE_EDGE_BOTH>, |
| <0x0 0x14 1 IRQ_TYPE_EDGE_BOTH>; |
| interrupt-names = "chg-done", |
| "chg-fast", |
| "chg-trkl", |
| "bat-temp-ok", |
| "bat-present", |
| "chg-gone", |
| "usb-valid", |
| "dc-valid"; |
| qcom,fast-charge-current-limit = <1000000>; |
| qcom,dc-current-limit = <1000000>; |
| usb-otg-in-supply = <&pm8941_5vs1>; |
| |
| otg-vbus {}; |
| }; |
| }; |