Re: [PATCH v8 14/14] Documentation: power: bq24257: Document exported sysfs entries
From: Krzysztof Kozlowski <hidden>
Date: 2015-09-29 06:22:29
Also in:
linux-devicetree, linux-pm
W dniu 29.09.2015 o 07:34, Andreas Dannenberg pisze:
quoted hunk
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
Date: October 2015 (yes, the future) Kernel 4.4. We are already at 4.3 cycle so it won't go into 4.3. Rest looks good: Reviewed-by: Krzysztof Kozlowski <redacted> Best regards, Krzysztof
+Contact: Andreas Dannenberg [off-list ref] +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 [off-list ref] +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 [off-list ref] +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 [off-list ref] +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