linux-toradex.git/include/linux/power_supply.h, branch v4.0-rc1

power_supply: Add no_thermal property to prevent recursive get_temp calls

2014-10-28T02:30:19+00:00

Add a 'no_thermal' property to the power supply class. If true then
thermal zone won't be created for this power supply in
power_supply_register().

Power supply drivers may want to set it if they support
POWER_SUPPLY_PROP_TEMP and they are forwarding this get property call to
other thermal zone.

If they won't set it lockdep may report false positive deadlock for
thermal zone's mutex because of nested calls to thermal_zone_get_temp().
First is the call to thermal_zone_get_temp() of the driver's thermal
zone. Thermal core gets POWER_SUPPLY_PROP_TEMP property from this
driver. The driver then calls other thermal zone thermal_zone_get_temp()
and returns result.

Example of such driver is charger manager.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Sebastian Reichel

power-supply: Forward declare structs together

2014-09-16T09:01:28+00:00

power_supply.h requires to forward declare few structures. One of them is done
at the top of the file and other one just before it is used. Declare them
together for better readability.

Signed-off-by: Viresh Kumar 
Signed-off-by: Sebastian Reichel

power_supply: Add boot and calibration attributes

2014-09-06T19:05:04+00:00

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 
Signed-off-by: Sebastian Reichel

power_supply: Add inlmt,iterm, min/max temp props

2014-07-18T21:40:23+00:00

Add new power supply properties for input current, charge termination
current, min and max temperature

POWER_SUPPLY_PROP_TEMP_MIN - minimum operatable temperature
POWER_SUPPLY_PROP_TEMP_MAX - maximum operatable temperature

POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT - input current limit programmed
by charger. Indicates the input current for a charging source.

POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT - Charge termination current used
to detect the end of charge condition

Signed-off-by: Jenny TC 
Acked-by: Pavel Machek 
Signed-off-by: Sebastian Reichel

power_supply: allow power supply devices registered w/o wakeup source

2014-05-30T11:45:25+00:00

Currently, all the power supply devices are registered with wakeup source,
this results in that every power_supply_changed() invocation brings
the system out of suspend-to-freeze state.

This is overkill as some device drivers, e.g. ACPI battery driver,
have the ability to check the device status and wake up the system
from sleeping only when necessary.

Thus introduce a new API which allows device to be registered
w/o wakeup source.

Signed-off-by: Zhang Rui 
Signed-off-by: Rafael J. Wysocki

power_supply: Add power_supply_get_by_phandle

2013-12-24T02:21:11+00:00

Add method to get power supply by device tree phandle.

Signed-off-by: Sebastian Reichel 
Reviewed-by: Pavel Machek 
Signed-off-by: Anton Vorontsov

power_supply: Add power_supply notifier

2013-12-01T22:27:24+00:00

This patch adds a notifier chain to the power_supply, this helps drivers
in other subsystem to listen to changes in power supply subsystem.

This would help to take some actions in those drivers on changing the
power supply properties. One such scenario is to increase/decrease system
performance based on the battery capacity/voltage. Another scenario is to
adjust the h/w peak current detection voltage/current thresholds based on
battery voltage/capacity. The notifier helps drivers to listen to changes
in power_suppy susbystem without polling the power_supply properties

Signed-off-by: Jenny TC 
Signed-off-by: Pali Rohár 
Acked-by: Jenny TC 
Signed-off-by: Anton Vorontsov

power_supply: Prevent suspend until power supply events are processed

2013-08-28T01:42:48+00:00

This patch, originally authored by Arve Hjonnevag and Todd Poynor,
prevents the system from entering suspend mode until the power supply
plug, unplug, or any other change of state event is fully processed. This
guarantees that the screen lights up and displays the battery charging
state. The implementation uses the power supply wakeup_source object.

Cc: David Woodhouse 
Cc: Arve Hjonnevag 
Cc: Todd Poynor 
Cc: John Stultz 
Signed-off-by: Zoran Markovic 
Signed-off-by: Anton Vorontsov

power_supply: Move of_node out of the #ifdef CONFIG_OF

2013-06-29T01:20:52+00:00

Similar to linux/device.h, move of_node struct member out of the #ifdef
CONFIG_OF so that the drivers won't have to mess with #ifdefs in .c files.

Signed-off-by: Anton Vorontsov

power_supply: Populate supplied_from hierarchy from the device tree

2013-04-17T01:51:16+00:00

With this patch the power_supply_core will try to populate supplied_from
hierarchy from the device tree.

Signed-off-by: Rhyland Klein 
Signed-off-by: Anton Vorontsov