1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 # Copyright (C) 2020 Texas Instruments Incorpo 2 # Copyright (C) 2020 Texas Instruments Incorporated
3 %YAML 1.2 3 %YAML 1.2
4 --- 4 ---
5 $id: http://devicetree.org/schemas/power/suppl !! 5 $id: "http://devicetree.org/schemas/power/supply/bq2515x.yaml#"
6 $schema: http://devicetree.org/meta-schemas/co !! 6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
7 7
8 title: TI bq2515x 500-mA Linear charger family 8 title: TI bq2515x 500-mA Linear charger family
9 9
10 maintainers: 10 maintainers:
11 - Andrew Davis <afd@ti.com> !! 11 - Dan Murphy <dmurphy@ti.com>
>> 12 - Ricardo Rivera-Matos <r-rivera-matos@ti.com>
12 13
13 description: | 14 description: |
14 The BQ2515x family is a highly integrated ba 15 The BQ2515x family is a highly integrated battery charge management IC that
15 integrates the most common functions for wea 16 integrates the most common functions for wearable devices, namely a charger,
16 an output voltage rail, ADC for battery and 17 an output voltage rail, ADC for battery and system monitoring, and
17 push-button controller. 18 push-button controller.
18 19
19 Specifications about the charger can be foun 20 Specifications about the charger can be found at:
20 http://www.ti.com/lit/ds/symlink/bq25150.p 21 http://www.ti.com/lit/ds/symlink/bq25150.pdf
21 http://www.ti.com/lit/ds/symlink/bq25155.p 22 http://www.ti.com/lit/ds/symlink/bq25155.pdf
22 23
23 properties: 24 properties:
24 compatible: 25 compatible:
25 enum: 26 enum:
26 - ti,bq25150 27 - ti,bq25150
27 - ti,bq25155 28 - ti,bq25155
28 29
29 reg: 30 reg:
30 maxItems: 1 31 maxItems: 1
31 description: I2C address of the charger. 32 description: I2C address of the charger.
32 33
33 ac-detect-gpios: 34 ac-detect-gpios:
34 description: | 35 description: |
35 GPIO used for connecting the bq2515x de 36 GPIO used for connecting the bq2515x device PG (AC Detect)
36 pin. 37 pin.
37 maxItems: 1 38 maxItems: 1
38 39
39 reset-gpios: 40 reset-gpios:
40 description: GPIO used for hardware reset. 41 description: GPIO used for hardware reset.
41 maxItems: 1 42 maxItems: 1
42 43
43 powerdown-gpios: 44 powerdown-gpios:
44 description: GPIO used for low power mode 45 description: GPIO used for low power mode of IC.
45 maxItems: 1 46 maxItems: 1
46 47
47 charge-enable-gpios: 48 charge-enable-gpios:
48 description: GPIO used to turn on and off 49 description: GPIO used to turn on and off charging.
49 maxItems: 1 50 maxItems: 1
50 51
51 input-current-limit-microamp: 52 input-current-limit-microamp:
>> 53 $ref: /schemas/types.yaml#/definitions/uint32
52 description: Maximum input current in micr 54 description: Maximum input current in micro Amps.
53 minimum: 50000 55 minimum: 50000
54 maximum: 500000 56 maximum: 500000
55 57
56 monitored-battery: 58 monitored-battery:
57 $ref: /schemas/types.yaml#/definitions/pha 59 $ref: /schemas/types.yaml#/definitions/phandle
58 description: phandle to the battery node b 60 description: phandle to the battery node being monitored
59 61
60 required: 62 required:
61 - compatible 63 - compatible
62 - reg 64 - reg
63 - monitored-battery 65 - monitored-battery
64 66
65 additionalProperties: false 67 additionalProperties: false
66 68
67 examples: 69 examples:
68 - | 70 - |
69 bat: battery { 71 bat: battery {
70 compatible = "simple-battery"; 72 compatible = "simple-battery";
71 constant-charge-current-max-microamp = < 73 constant-charge-current-max-microamp = <50000>;
72 precharge-current-microamp = <2500>; 74 precharge-current-microamp = <2500>;
73 constant-charge-voltage-max-microvolt = 75 constant-charge-voltage-max-microvolt = <4000000>;
74 }; 76 };
75 #include <dt-bindings/gpio/gpio.h> 77 #include <dt-bindings/gpio/gpio.h>
76 i2c { !! 78 i2c0 {
77 #address-cells = <1>; 79 #address-cells = <1>;
78 #size-cells = <0>; 80 #size-cells = <0>;
79 81
80 bq25150: charger@6b { 82 bq25150: charger@6b {
81 compatible = "ti,bq25150"; 83 compatible = "ti,bq25150";
82 reg = <0x6b>; 84 reg = <0x6b>;
83 monitored-battery = <&bat>; 85 monitored-battery = <&bat>;
84 input-current-limit-microamp = <100000 86 input-current-limit-microamp = <100000>;
85 87
86 ac-detect-gpios = <&gpio1 28 GPIO_ACTI 88 ac-detect-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
87 reset-gpios = <&gpio0 14 GPIO_ACTIVE_H 89 reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
88 powerdown-gpios = <&gpio0 15 GPIO_ACTI 90 powerdown-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
89 charge-enable-gpios = <&gpio0 13 GPIO_ 91 charge-enable-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
90 }; 92 };
91 }; 93 };
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