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 <dannenb...@ti.com>
---
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 <dannenb...@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: September 2015
+KernelVersion: 4.3.0
+Contact: Andreas Dannenberg <dannenb...@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: September 2015
+KernelVersion: 4.3.0
+Contact: Andreas Dannenberg <dannenb...@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: September 2015
+KernelVersion: 4.3.0
+Contact: Andreas Dannenberg <dannenb...@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
--
1.9.1
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