| 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/qcom,pm8916-lbc.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Qualcomm Linear Battery Charger |
| 8 | |
| 9 | maintainers: |
| 10 | - Nikita Travkin <nikita@trvn.ru> |
| 11 | |
| 12 | description: |
| 13 | Linear Battery Charger hardware block, found in some Qualcomm PMICs |
| 14 | such as pm8916. Implements a simple, autonomous CC/CV charger. |
| 15 | |
| 16 | allOf: |
| 17 | - $ref: power-supply.yaml# |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | const: qcom,pm8916-lbc |
| 22 | |
| 23 | reg: |
| 24 | items: |
| 25 | - description: Charger |
| 26 | - description: Battery |
| 27 | - description: USB |
| 28 | - description: MISC |
| 29 | |
| 30 | reg-names: |
| 31 | items: |
| 32 | - const: chgr |
| 33 | - const: bat_if |
| 34 | - const: usb |
| 35 | - const: misc |
| 36 | |
| 37 | interrupts: |
| 38 | items: |
| 39 | - description: Battery detection |
| 40 | - description: Fast charging |
| 41 | - description: Charging failed |
| 42 | - description: Charging done |
| 43 | - description: Battery present |
| 44 | - description: Battery temperature OK |
| 45 | - description: USB coarse detection |
| 46 | - description: USB IN valid |
| 47 | - description: Charger gone |
| 48 | - description: Overtemperature |
| 49 | |
| 50 | interrupt-names: |
| 51 | items: |
| 52 | - const: vbat_det |
| 53 | - const: fast_chg |
| 54 | - const: chg_fail |
| 55 | - const: chg_done |
| 56 | - const: bat_pres |
| 57 | - const: temp_ok |
| 58 | - const: coarse_det |
| 59 | - const: usb_vbus |
| 60 | - const: chg_gone |
| 61 | - const: overtemp |
| 62 | |
| 63 | qcom,fast-charge-safe-voltage: |
| 64 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 65 | minimum: 4000000 |
| 66 | maximum: 4775000 |
| 67 | description: |
| 68 | Maximum safe battery voltage in uV; May be pre-set by bootloader, |
| 69 | in which case, setting this will harmlessly fail. |
| 70 | |
| 71 | qcom,fast-charge-safe-current: |
| 72 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 73 | minimum: 90000 |
| 74 | maximum: 1440000 |
| 75 | description: |
| 76 | Maximum safe battery charge current in uA; May be pre-set by |
| 77 | bootloader, in which case setting this will harmlessly fail. |
| 78 | |
| 79 | monitored-battery: true |
| 80 | |
| 81 | required: |
| 82 | - compatible |
| 83 | - reg |
| 84 | - interrupts |
| 85 | - interrupt-names |
| 86 | - qcom,fast-charge-safe-voltage |
| 87 | - qcom,fast-charge-safe-current |
| 88 | |
| 89 | additionalProperties: false |
| 90 | |
| 91 | examples: |
| 92 | - | |
| 93 | #include <dt-bindings/interrupt-controller/irq.h> |
| 94 | pmic { |
| 95 | #address-cells = <1>; |
| 96 | #size-cells = <0>; |
| 97 | |
| 98 | charger@1000 { |
| 99 | compatible = "qcom,pm8916-lbc"; |
| 100 | reg = <0x1000>, <0x1200>, <0x1300>, <0x1600>; |
| 101 | reg-names = "chgr", "bat_if", "usb", "misc"; |
| 102 | |
| 103 | interrupts = <0x0 0x10 0 IRQ_TYPE_EDGE_BOTH>, |
| 104 | <0x0 0x10 5 IRQ_TYPE_EDGE_BOTH>, |
| 105 | <0x0 0x10 6 IRQ_TYPE_EDGE_BOTH>, |
| 106 | <0x0 0x10 7 IRQ_TYPE_EDGE_BOTH>, |
| 107 | <0x0 0x12 0 IRQ_TYPE_EDGE_BOTH>, |
| 108 | <0x0 0x12 1 IRQ_TYPE_EDGE_BOTH>, |
| 109 | <0x0 0x13 0 IRQ_TYPE_EDGE_BOTH>, |
| 110 | <0x0 0x13 1 IRQ_TYPE_EDGE_BOTH>, |
| 111 | <0x0 0x13 2 IRQ_TYPE_EDGE_BOTH>, |
| 112 | <0x0 0x13 4 IRQ_TYPE_EDGE_BOTH>; |
| 113 | interrupt-names = "vbat_det", |
| 114 | "fast_chg", |
| 115 | "chg_fail", |
| 116 | "chg_done", |
| 117 | "bat_pres", |
| 118 | "temp_ok", |
| 119 | "coarse_det", |
| 120 | "usb_vbus", |
| 121 | "chg_gone", |
| 122 | "overtemp"; |
| 123 | monitored-battery = <&battery>; |
| 124 | |
| 125 | qcom,fast-charge-safe-current = <900000>; |
| 126 | qcom,fast-charge-safe-voltage = <4300000>; |
| 127 | }; |
| 128 | }; |