| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/power/supply/richtek,rt9467.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Richtek RT9467 Switching Battery Charger with Power Path Management |
| 8 | |
| 9 | maintainers: |
| 10 | - ChiYuan Huang <cy_huang@richtek.com> |
| 11 | - ChiaEn Wu <chiaen_wu@richtek.com> |
| 12 | |
| 13 | description: | |
| 14 | RT9467 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for |
| 15 | portable applications. It integrates a synchronous PWM controller, power |
| 16 | MOSFETs, input current sensing and regulation, high-accuracy voltage |
| 17 | regulation, and charge termination. The charge current is regulated through |
| 18 | integrated sensing resistors. |
| 19 | |
| 20 | The RT9467 also features USB On-The-Go (OTG) support. It also integrates |
| 21 | D+/D- pin for USB host/charging port detection. |
| 22 | |
| 23 | Datasheet is available at |
| 24 | https://www.richtek.com/assets/product_file/RT9467/DS9467-01.pdf |
| 25 | |
| 26 | properties: |
| 27 | compatible: |
| 28 | const: richtek,rt9467 |
| 29 | |
| 30 | reg: |
| 31 | maxItems: 1 |
| 32 | |
| 33 | wakeup-source: true |
| 34 | |
| 35 | interrupts: |
| 36 | maxItems: 1 |
| 37 | |
| 38 | charge-enable-gpios: |
| 39 | description: GPIO is used to turn on and off charging. |
| 40 | maxItems: 1 |
| 41 | |
| 42 | usb-otg-vbus-regulator: |
| 43 | type: object |
| 44 | description: OTG boost regulator. |
| 45 | unevaluatedProperties: false |
| 46 | $ref: /schemas/regulator/regulator.yaml# |
| 47 | |
| 48 | properties: |
| 49 | enable-gpios: true |
| 50 | |
| 51 | required: |
| 52 | - compatible |
| 53 | - reg |
| 54 | - wakeup-source |
| 55 | - interrupts |
| 56 | |
| 57 | additionalProperties: false |
| 58 | |
| 59 | examples: |
| 60 | - | |
| 61 | #include <dt-bindings/interrupt-controller/irq.h> |
| 62 | #include <dt-bindings/gpio/gpio.h> |
| 63 | i2c { |
| 64 | #address-cells = <1>; |
| 65 | #size-cells = <0>; |
| 66 | |
| 67 | charger@5b { |
| 68 | compatible = "richtek,rt9467"; |
| 69 | reg = <0x5b>; |
| 70 | wakeup-source; |
| 71 | interrupts-extended = <&gpio_intc 32 IRQ_TYPE_LEVEL_LOW>; |
| 72 | charge-enable-gpios = <&gpio26 1 GPIO_ACTIVE_LOW>; |
| 73 | |
| 74 | rt9467_otg_vbus: usb-otg-vbus-regulator { |
| 75 | regulator-name = "rt9467-usb-otg-vbus"; |
| 76 | regulator-min-microvolt = <4425000>; |
| 77 | regulator-max-microvolt = <5825000>; |
| 78 | regulator-min-microamp = <500000>; |
| 79 | regulator-max-microamp = <3000000>; |
| 80 | }; |
| 81 | }; |
| 82 | }; |