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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/mediatek,mt6370-charger.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek MT6370 Battery Charger
maintainers:
- ChiaEn Wu <chiaen_wu@richtek.com>
description: |
This module is part of the MT6370 MFD device.
Provides Battery Charger, Boost for OTG devices and BC1.2 detection.
properties:
compatible:
const: mediatek,mt6370-charger
interrupts:
description: |
Specify what irqs are needed to be handled by MT6370 Charger driver.
We need to use the IRQ "MT6370_IRQ_OVPCTRL_UVP_D" to know when USB
is plugged in, and then the driver will enable BC1.2 detection.
After the hardware of MT6370 completes the BC1.2 detection,
IRQ "MT6370_IRQ_ATTACH" will be triggered, and the driver will know
the result of BC1.2 detection.
When the IRQ "MT6370_IRQ_CHG_MIVR" is triggered, it means that the
hardware enters the "Minimum Input Voltage Regulation loop" and
a workaround needs to be applied at this time.
In summary, "MT6370_IRQ_OVPCTRL_UVP_D", "MT6370_IRQ_ATTACH" and
"MT6370_IRQ_CHG_MIVR" are required in this charger driver.
items:
- description: irq of "USB is plugged in"
- description: irq of "BC1.2 is done"
- description: irq of "Minimum Input Voltage Regulation loop is active"
interrupt-names:
items:
- const: uvp_d_evt
- const: attach_i
- const: mivr
io-channels:
description: |
Use ADC channel to read VBUS, IBUS, IBAT, etc., info.
minItems: 1
items:
- description: |
VBUS voltage with lower accuracy (+-75mV) but higher measure
range (1~22V)
- description: |
VBUS voltage with higher accuracy (+-30mV) but lower measure
range (1~9.76V)
- description: the main system input voltage
- description: battery voltage
- description: battery temperature-sense input voltage
- description: IBUS current (required)
- description: battery current
- description: |
regulated output voltage to supply for the PWM low-side gate driver
and the bootstrap capacitor
- description: IC junction temperature
io-channel-names:
minItems: 1
items:
- const: vbusdiv5
- const: vbusdiv2
- const: vsys
- const: vbat
- const: ts_bat
- const: ibus
- const: ibat
- const: chg_vddp
- const: temp_jc
usb-otg-vbus-regulator:
type: object
description: OTG boost regulator.
unevaluatedProperties: false
$ref: /schemas/regulator/regulator.yaml#
properties:
enable-gpios:
maxItems: 1
required:
- compatible
- interrupts
- interrupt-names
- io-channels
additionalProperties: false
...
|
