diff options
| author | Ramakrishna Pallala <ramakrishna.pallala@intel.com> | 2014-08-27 22:14:08 +0400 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2014-09-06 23:05:04 +0400 |
| commit | a8adcc9012d8502e06ba7b3f966bad8f2c58edc3 (patch) | |
| tree | b48ccc27bb9d4cf11dea461a09ab424e18b7ebfb | |
| parent | b1022e247872dc87a6ffd6f9aa6a92e0b67cdf00 (diff) | |
| download | linux-a8adcc9012d8502e06ba7b3f966bad8f2c58edc3.tar.xz | |
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>
| -rw-r--r-- | Documentation/power/power_supply_class.txt | 6 | ||||
| -rw-r--r-- | drivers/power/power_supply_sysfs.c | 3 | ||||
| -rw-r--r-- | include/linux/power_supply.h | 5 |
3 files changed, 14 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 condition. +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. diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index 750a20275664..7e4726d37211 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -149,9 +149,11 @@ static struct device_attribute power_supply_attrs[] = { POWER_SUPPLY_ATTR(voltage_now), POWER_SUPPLY_ATTR(voltage_avg), POWER_SUPPLY_ATTR(voltage_ocv), + POWER_SUPPLY_ATTR(voltage_boot), POWER_SUPPLY_ATTR(current_max), POWER_SUPPLY_ATTR(current_now), POWER_SUPPLY_ATTR(current_avg), + POWER_SUPPLY_ATTR(current_boot), POWER_SUPPLY_ATTR(power_now), POWER_SUPPLY_ATTR(power_avg), POWER_SUPPLY_ATTR(charge_full_design), @@ -193,6 +195,7 @@ static struct device_attribute power_supply_attrs[] = { POWER_SUPPLY_ATTR(type), POWER_SUPPLY_ATTR(scope), POWER_SUPPLY_ATTR(charge_term_current), + POWER_SUPPLY_ATTR(calibrate), /* Properties of type `const char *' */ POWER_SUPPLY_ATTR(model_name), POWER_SUPPLY_ATTR(manufacturer), diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index f3dea41dbcd2..de59a28b1b5b 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -102,9 +102,11 @@ enum power_supply_property { POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_VOLTAGE_AVG, POWER_SUPPLY_PROP_VOLTAGE_OCV, + POWER_SUPPLY_PROP_VOLTAGE_BOOT, POWER_SUPPLY_PROP_CURRENT_MAX, POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CURRENT_AVG, + POWER_SUPPLY_PROP_CURRENT_BOOT, POWER_SUPPLY_PROP_POWER_NOW, POWER_SUPPLY_PROP_POWER_AVG, POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, @@ -146,6 +148,7 @@ enum power_supply_property { POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */ POWER_SUPPLY_PROP_SCOPE, POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, + POWER_SUPPLY_PROP_CALIBRATE, /* Properties of type `const char *' */ POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, @@ -291,6 +294,7 @@ static inline bool power_supply_is_amp_property(enum power_supply_property psp) case POWER_SUPPLY_PROP_CURRENT_MAX: case POWER_SUPPLY_PROP_CURRENT_NOW: case POWER_SUPPLY_PROP_CURRENT_AVG: + case POWER_SUPPLY_PROP_CURRENT_BOOT: return 1; default: break; @@ -315,6 +319,7 @@ static inline bool power_supply_is_watt_property(enum power_supply_property psp) case POWER_SUPPLY_PROP_VOLTAGE_NOW: case POWER_SUPPLY_PROP_VOLTAGE_AVG: case POWER_SUPPLY_PROP_VOLTAGE_OCV: + case POWER_SUPPLY_PROP_VOLTAGE_BOOT: case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: case POWER_SUPPLY_PROP_POWER_NOW: |