path: root/Documentation/power
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authorRamakrishna Pallala <ramakrishna.pallala@intel.com>2014-08-27 23:44:08 +0530
committerSebastian Reichel <sre@kernel.org>2014-09-06 21:05:04 +0200
commita8adcc9012d8502e06ba7b3f966bad8f2c58edc3 (patch)
treeb48ccc27bb9d4cf11dea461a09ab424e18b7ebfb /Documentation/power
parentb1022e247872dc87a6ffd6f9aa6a92e0b67cdf00 (diff)
power_supply: Add boot and calibration attributes
Usually PMIC's come with coulomb counting mechanism which can be used to implement a Fuel Gauginig solution in Software itself. One of key input to these SW Fuel Gauge solutioons is the boot up parameters like boot voltage and boot current. This patch adds the VOLTAGE_BOOT and CURRENT_BOOT power supply attributes to report bootup voltage and current. This patch also adds CALIBRATE power supply attribute which useful is for calibrating the battery/coulomb counter. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'Documentation/power')
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/power/power_supply_class.txt b/Documentation/power/power_supply_class.txt
index 48cff881cb8a..82dacc06e355 100644
--- a/Documentation/power/power_supply_class.txt
+++ b/Documentation/power/power_supply_class.txt
@@ -101,6 +101,10 @@ VOLTAGE_MAX, VOLTAGE_MIN - same as _DESIGN voltage values except that
these ones should be used if hardware could only guess (measure and
retain) the thresholds of a given power supply.
+VOLTAGE_BOOT - Reports the voltage measured during boot
+CURRENT_BOOT - Reports the current measured during boot
CHARGE_FULL_DESIGN, CHARGE_EMPTY_DESIGN - design charge values, when
battery considered full/empty.
@@ -123,6 +127,8 @@ the current drawn from a charging source.
CHARGE_TERM_CURRENT - Charge termination current used to detect the end of charge
+CALIBRATE - battery or coulomb counter calibration status
CONSTANT_CHARGE_VOLTAGE - constant charge voltage programmed by charger.
CONSTANT_CHARGE_VOLTAGE_MAX - maximum charge voltage supported by the
power supply object.

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