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Commit 6169588f authored by Andreas Dannenberg's avatar Andreas Dannenberg Committed by Sebastian Reichel
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Documentation: power: bq24257: Document exported sysfs entries 



Document the settings exported by bq24257 charger driver through sysfs
entries:
- ovp_voltage
- in_dpm_voltage
- high_impedance_enable
- sysoff_enable

Signed-off-by: default avatarAndreas Dannenberg <dannenberg@ti.com>
Reviewed-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: default avatarSebastian Reichel <sre@kernel.org>
parent 007ee5f6

Documentation/ABI/testing/sysfs-class-power

+58 −0
Original line number Diff line number Diff line
@@ -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:		October 2015

KernelVersion:	4.4.0

Contact:	Andreas Dannenberg <dannenberg@ti.com>

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:		October 2015

KernelVersion:	4.4.0

Contact:	Andreas Dannenberg <dannenberg@ti.com>

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:		October 2015

KernelVersion:	4.4.0

Contact:	Andreas Dannenberg <dannenberg@ti.com>

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:		October 2015

KernelVersion:	4.4.0

Contact:	Andreas Dannenberg <dannenberg@ti.com>

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