1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/power/suppl !! 4 $id: "http://devicetree.org/schemas/power/supply/sc27xx-fg.yaml#"
5 $schema: http://devicetree.org/meta-schemas/co !! 5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
6 6
7 title: Spreadtrum SC27XX PMICs Fuel Gauge Unit !! 7 title: Spreadtrum SC27XX PMICs Fuel Gauge Unit Power Supply Bindings
8 8
9 maintainers: 9 maintainers:
10 - Sebastian Reichel <sre@kernel.org> 10 - Sebastian Reichel <sre@kernel.org>
11 11
12 allOf: 12 allOf:
13 - $ref: power-supply.yaml# 13 - $ref: power-supply.yaml#
14 14
15 properties: 15 properties:
16 compatible: 16 compatible:
17 enum: 17 enum:
18 - sprd,sc2720-fgu 18 - sprd,sc2720-fgu
19 - sprd,sc2721-fgu 19 - sprd,sc2721-fgu
20 - sprd,sc2723-fgu 20 - sprd,sc2723-fgu
21 - sprd,sc2730-fgu 21 - sprd,sc2730-fgu
22 - sprd,sc2731-fgu 22 - sprd,sc2731-fgu
23 23
24 reg: 24 reg:
25 maxItems: 1 25 maxItems: 1
26 26
27 battery-detect-gpios: 27 battery-detect-gpios:
28 maxItems: 1 28 maxItems: 1
29 29
30 interrupts: <<
31 maxItems: 1 <<
32 <<
33 io-channels: 30 io-channels:
34 items: 31 items:
35 - description: Battery Temperature ADC 32 - description: Battery Temperature ADC
36 - description: Battery Charge Voltage AD 33 - description: Battery Charge Voltage ADC
37 34
38 io-channel-names: 35 io-channel-names:
39 items: 36 items:
40 - const: bat-temp 37 - const: bat-temp
41 - const: charge-vol 38 - const: charge-vol
42 39
43 nvmem-cells: 40 nvmem-cells:
44 maxItems: 1 41 maxItems: 1
45 description: Calibration cells provided by 42 description: Calibration cells provided by eFuse device
46 43
47 nvmem-cell-names: 44 nvmem-cell-names:
48 const: fgu_calib 45 const: fgu_calib
49 46
50 sprd,calib-resistance-micro-ohms: 47 sprd,calib-resistance-micro-ohms:
51 description: real resistance of coulomb co 48 description: real resistance of coulomb counter chip in micro Ohms
52 49
53 monitored-battery: true 50 monitored-battery: true
54 51
55 required: 52 required:
56 - compatible 53 - compatible
57 - reg 54 - reg
58 - battery-detect-gpios 55 - battery-detect-gpios
59 - interrupts <<
60 - io-channels 56 - io-channels
61 - io-channel-names 57 - io-channel-names
62 - nvmem-cells 58 - nvmem-cells
63 - nvmem-cell-names 59 - nvmem-cell-names
64 - sprd,calib-resistance-micro-ohms 60 - sprd,calib-resistance-micro-ohms
65 - monitored-battery 61 - monitored-battery
66 62
67 additionalProperties: false 63 additionalProperties: false
68 64
69 examples: 65 examples:
70 - | 66 - |
71 #include <dt-bindings/gpio/gpio.h> 67 #include <dt-bindings/gpio/gpio.h>
72 bat: battery { 68 bat: battery {
73 compatible = "simple-battery"; 69 compatible = "simple-battery";
74 charge-full-design-microamp-hours = <190 70 charge-full-design-microamp-hours = <1900000>;
75 constant-charge-voltage-max-microvolt = 71 constant-charge-voltage-max-microvolt = <4350000>;
76 ocv-capacity-celsius = <20>; 72 ocv-capacity-celsius = <20>;
77 ocv-capacity-table-0 = <4185000 100>, <4 73 ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>,
78 <4022000 85>, <39 74 <4022000 85>, <3983000 80>, <3949000 75>,
79 <3917000 70>, <38 75 <3917000 70>, <3889000 65>, <3864000 60>,
80 <3835000 55>, <38 76 <3835000 55>, <3805000 50>, <3787000 45>,
81 <3777000 40>, <37 77 <3777000 40>, <3773000 35>, <3770000 30>,
82 <3765000 25>, <37 78 <3765000 25>, <3752000 20>, <3724000 15>,
83 <3680000 10>, <36 79 <3680000 10>, <3605000 5>, <3400000 0>;
84 // ... 80 // ...
85 }; 81 };
86 82
87 pmic { 83 pmic {
88 #address-cells = <1>; 84 #address-cells = <1>;
89 #size-cells = <0>; 85 #size-cells = <0>;
90 86
91 battery@a00 { 87 battery@a00 {
92 compatible = "sprd,sc2731-fgu"; 88 compatible = "sprd,sc2731-fgu";
93 reg = <0xa00>; 89 reg = <0xa00>;
94 battery-detect-gpios = <&pmic_eic 9 GP 90 battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
95 interrupt-parent = <&sc2731_pmic>; <<
96 interrupts = <4>; <<
97 io-channels = <&pmic_adc 5>, <&pmic_ad 91 io-channels = <&pmic_adc 5>, <&pmic_adc 14>;
98 io-channel-names = "bat-temp", "charge 92 io-channel-names = "bat-temp", "charge-vol";
99 nvmem-cells = <&fgu_calib>; 93 nvmem-cells = <&fgu_calib>;
100 nvmem-cell-names = "fgu_calib"; 94 nvmem-cell-names = "fgu_calib";
101 monitored-battery = <&bat>; 95 monitored-battery = <&bat>;
102 sprd,calib-resistance-micro-ohms = <21 96 sprd,calib-resistance-micro-ohms = <21500>;
103 }; 97 };
104 }; 98 };
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