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|
# 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:
enum:
- qcom,pm8226-charger
- 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-charge-current-limit:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 100000
maximum: 2500000
description: |
Default USB charge current limit in uA.
usb-otg-in-supply:
description: Reference to the regulator supplying power to the USB_OTG_IN pin.
otg-vbus:
$ref: /schemas/regulator/regulator.yaml#
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 {};
};
};
|
