73 lines
1.8 KiB
YAML
73 lines
1.8 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/richtek,rt9756.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Richtek RT9756 Smart Cap Divider Charger
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maintainers:
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- ChiYuan Huang <cy_huang@richtek.com>
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description: |
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The RT9756/RT9757 is a high efficiency and high charge current charger.
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The efficiency is up to 98.2% when VBAT = 4V, IBAT = 2A in DIV2 mode and 99.1%
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when VBAT=4V, IBAT=1A in bypass mode. The maximum charger current is up to 8A
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in DIV2 mode and 5A in bypass mode. The device integrates smart cap divider
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topology, direct charging mode, external over-voltage protection control, an
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input reverse blocking NFET and 2-way regulation, a dual phase charge pump
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core, 8-Channel high speed ADCs and USB BC 1.2 detection.
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RT9770 is almost the same with RT9756/57, only BC 1.2 detection function is
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removed to shrink the die size.
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allOf:
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- $ref: power-supply.yaml#
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properties:
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compatible:
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oneOf:
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- enum:
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- richtek,rt9756
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- richtek,rt9770
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- items:
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- enum:
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- richtek,rt9757
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- const: richtek,rt9756
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reg:
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maxItems: 1
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wakeup-source: true
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interrupts:
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maxItems: 1
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shunt-resistor-micro-ohms:
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description: Battery current sense resistor mounted.
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default: 2000
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required:
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- compatible
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- reg
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- interrupts
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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charger@6f {
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compatible = "richtek,rt9756";
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reg = <0x6f>;
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wakeup-source;
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interrupts-extended = <&gpio_intc 32 IRQ_TYPE_EDGE_FALLING>;
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shunt-resistor-micro-ohms = <5000>;
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};
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};
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