[PATCH v8 14/14] Documentation: power: bq24257: Document exported sysfs entries
From: Andreas Dannenberg <hidden>
Date: 2015-09-28 22:34:02
Also in:
linux-api, linux-pm
Subsystem:
power supply class/subsystem and drivers, the rest · Maintainers:
Sebastian Reichel, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2015-09-29 · Re: [PATCH v8 14/14] Documentation: power: bq24257: Document exported sysfs entries · Krzysztof Kozlowski <hidden>
Document the settings exported by bq24257 charger driver through sysfs entries: - ovp_voltage - in_dpm_voltage - high_impedance_enable - sysoff_enable Signed-off-by: Andreas Dannenberg <redacted> --- Documentation/ABI/testing/sysfs-class-power | 58 +++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 369d2a2..d96b5fc 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power@@ -74,3 +74,61 @@ Description: Valid values: - 0 - 70 (minutes), step by 10 (rounded down) + +What: /sys/class/power_supply/bq24257-charger/ovp_voltage +Date: September 2015 +KernelVersion: 4.3.0 +Contact: Andreas Dannenberg <dannenberg-l0cyMroinI0@public.gmane.org> +Description: + This entry configures the overvoltage protection feature of bq24257- + type charger devices. This feature protects the device and other + components against damage from overvoltage on the input supply. See + device datasheet for details. + + Valid values: + - 6000000, 6500000, 7000000, 8000000, 9000000, 9500000, 10000000, + 10500000 (all uV) + +What: /sys/class/power_supply/bq24257-charger/in_dpm_voltage +Date: September 2015 +KernelVersion: 4.3.0 +Contact: Andreas Dannenberg <dannenberg-l0cyMroinI0@public.gmane.org> +Description: + This entry configures the input dynamic power path management voltage of + bq24257-type charger devices. Once the supply drops to the configured + voltage, the input current limit is reduced down to prevent the further + drop of the supply. When the IC enters this mode, the charge current is + lower than the set value. See device datasheet for details. + + Valid values: + - 4200000, 4280000, 4360000, 4440000, 4520000, 4600000, 4680000, + 4760000 (all uV) + +What: /sys/class/power_supply/bq24257-charger/high_impedance_enable +Date: September 2015 +KernelVersion: 4.3.0 +Contact: Andreas Dannenberg <dannenberg-l0cyMroinI0@public.gmane.org> +Description: + This entry allows enabling the high-impedance mode of bq24257-type + charger devices. If enabled, it places the charger IC into low power + standby mode with the switch mode controller disabled. When disabled, + the charger operates normally. See device datasheet for details. + + Valid values: + - 1: enabled + - 0: disabled + +What: /sys/class/power_supply/bq24257-charger/sysoff_enable +Date: September 2015 +KernelVersion: 4.3.0 +Contact: Andreas Dannenberg <dannenberg-l0cyMroinI0@public.gmane.org> +Description: + This entry allows enabling the sysoff mode of bq24257-type charger + devices. If enabled and the input is removed, the internal battery FET + is turned off in order to reduce the leakage from the BAT pin to less + than 1uA. Note that on some devices/systems this disconnects the battery + from the system. See device datasheet for details. + + Valid values: + - 1: enabled + - 0: disabled
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1.9.1