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Commit | Line | Data |
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24af3202 DM |
1 | What: /sys/class/power/ds2760-battery.*/charge_now |
2 | Date: May 2010 | |
3 | KernelVersion: 2.6.35 | |
4 | Contact: Daniel Mack <daniel@caiaq.de> | |
5 | Description: | |
6 | This file is writeable and can be used to set the current | |
7 | coloumb counter value inside the battery monitor chip. This | |
8 | is needed for unavoidable corrections of aging batteries. | |
9 | A userspace daemon can monitor the battery charging logic | |
10 | and once the counter drops out of considerable bounds, take | |
11 | appropriate action. | |
12 | ||
13 | What: /sys/class/power/ds2760-battery.*/charge_full | |
14 | Date: May 2010 | |
15 | KernelVersion: 2.6.35 | |
16 | Contact: Daniel Mack <daniel@caiaq.de> | |
17 | Description: | |
18 | This file is writeable and can be used to set the assumed | |
19 | battery 'full level'. As batteries age, this value has to be | |
20 | amended over time. | |
d6cc1f58 KK |
21 | |
22 | What: /sys/class/power_supply/max14577-charger/device/fast_charge_timer | |
c8c5ebcc | 23 | Date: October 2014 |
d6cc1f58 | 24 | KernelVersion: 3.18.0 |
1c4593ed | 25 | Contact: Krzysztof Kozlowski <krzk@kernel.org> |
d6cc1f58 KK |
26 | Description: |
27 | This entry shows and sets the maximum time the max14577 | |
28 | charger operates in fast-charge mode. When the timer expires | |
29 | the device will terminate fast-charge mode (charging current | |
30 | will drop to 0 A) and will trigger interrupt. | |
31 | ||
32 | Valid values: | |
33 | - 5, 6 or 7 (hours), | |
34 | - 0: disabled. | |
6b23becd KK |
35 | |
36 | What: /sys/class/power_supply/max77693-charger/device/fast_charge_timer | |
37 | Date: January 2015 | |
38 | KernelVersion: 3.19.0 | |
1c4593ed | 39 | Contact: Krzysztof Kozlowski <krzk@kernel.org> |
6b23becd KK |
40 | Description: |
41 | This entry shows and sets the maximum time the max77693 | |
42 | charger operates in fast-charge mode. When the timer expires | |
43 | the device will terminate fast-charge mode (charging current | |
44 | will drop to 0 A) and will trigger interrupt. | |
45 | ||
46 | Valid values: | |
47 | - 4 - 16 (hours), step by 2 (rounded down) | |
48 | - 0: disabled. | |
49 | ||
50 | What: /sys/class/power_supply/max77693-charger/device/top_off_threshold_current | |
51 | Date: January 2015 | |
52 | KernelVersion: 3.19.0 | |
1c4593ed | 53 | Contact: Krzysztof Kozlowski <krzk@kernel.org> |
6b23becd KK |
54 | Description: |
55 | This entry shows and sets the charging current threshold for | |
56 | entering top-off charging mode. When charging current in fast | |
57 | charge mode drops below this value, the charger will trigger | |
58 | interrupt and start top-off charging mode. | |
59 | ||
60 | Valid values: | |
61 | - 100000 - 200000 (microamps), step by 25000 (rounded down) | |
62 | - 200000 - 350000 (microamps), step by 50000 (rounded down) | |
63 | - 0: disabled. | |
64 | ||
65 | What: /sys/class/power_supply/max77693-charger/device/top_off_timer | |
66 | Date: January 2015 | |
67 | KernelVersion: 3.19.0 | |
1c4593ed | 68 | Contact: Krzysztof Kozlowski <krzk@kernel.org> |
6b23becd KK |
69 | Description: |
70 | This entry shows and sets the maximum time the max77693 | |
71 | charger operates in top-off charge mode. When the timer expires | |
72 | the device will terminate top-off charge mode (charging current | |
73 | will drop to 0 A) and will trigger interrupt. | |
74 | ||
75 | Valid values: | |
76 | - 0 - 70 (minutes), step by 10 (rounded down) | |
6169588f AD |
77 | |
78 | What: /sys/class/power_supply/bq24257-charger/ovp_voltage | |
79 | Date: October 2015 | |
80 | KernelVersion: 4.4.0 | |
81 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
82 | Description: | |
83 | This entry configures the overvoltage protection feature of bq24257- | |
84 | type charger devices. This feature protects the device and other | |
85 | components against damage from overvoltage on the input supply. See | |
86 | device datasheet for details. | |
87 | ||
88 | Valid values: | |
89 | - 6000000, 6500000, 7000000, 8000000, 9000000, 9500000, 10000000, | |
90 | 10500000 (all uV) | |
91 | ||
92 | What: /sys/class/power_supply/bq24257-charger/in_dpm_voltage | |
93 | Date: October 2015 | |
94 | KernelVersion: 4.4.0 | |
95 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
96 | Description: | |
97 | This entry configures the input dynamic power path management voltage of | |
98 | bq24257-type charger devices. Once the supply drops to the configured | |
99 | voltage, the input current limit is reduced down to prevent the further | |
100 | drop of the supply. When the IC enters this mode, the charge current is | |
101 | lower than the set value. See device datasheet for details. | |
102 | ||
103 | Valid values: | |
104 | - 4200000, 4280000, 4360000, 4440000, 4520000, 4600000, 4680000, | |
105 | 4760000 (all uV) | |
106 | ||
107 | What: /sys/class/power_supply/bq24257-charger/high_impedance_enable | |
108 | Date: October 2015 | |
109 | KernelVersion: 4.4.0 | |
110 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
111 | Description: | |
112 | This entry allows enabling the high-impedance mode of bq24257-type | |
113 | charger devices. If enabled, it places the charger IC into low power | |
114 | standby mode with the switch mode controller disabled. When disabled, | |
115 | the charger operates normally. See device datasheet for details. | |
116 | ||
117 | Valid values: | |
118 | - 1: enabled | |
119 | - 0: disabled | |
120 | ||
121 | What: /sys/class/power_supply/bq24257-charger/sysoff_enable | |
122 | Date: October 2015 | |
123 | KernelVersion: 4.4.0 | |
124 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
125 | Description: | |
126 | This entry allows enabling the sysoff mode of bq24257-type charger | |
127 | devices. If enabled and the input is removed, the internal battery FET | |
128 | is turned off in order to reduce the leakage from the BAT pin to less | |
129 | than 1uA. Note that on some devices/systems this disconnects the battery | |
130 | from the system. See device datasheet for details. | |
131 | ||
132 | Valid values: | |
133 | - 1: enabled | |
134 | - 0: disabled |