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authorNick Crews <ncrews@chromium.org>2019-04-18 10:43:13 -0600
committerSebastian Reichel <sre@kernel.org>2019-05-02 01:11:32 +0200
commit813cab8f3994250e136819ae48fbd1c95d980466 (patch)
tree96e4922d1df5ceea63e9fbc914929595c58350a8 /Documentation
parentba6cc85084178e5bce50f6a00411e457c21c47df (diff)
power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties
Add POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties, to expand the existing CHARGE_CONTROL_* properties. I am adding them in order to support a new Chrome OS device, but these properties should be general enough that they can be used on other devices. When the charge_type is "Custom", the charge controller uses the POWER_SUPPLY_PROP_CHARGE_CONTROL_* properties as configuration for some other algorithm. For example, in the use case that I am supporting, this means the battery begins charging when the percentage level drops below POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and charging ceases when the percentage level goes above POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD. v5 changes: - Add the other missing CHARGE_CONTROL_* properties documentation in a separate commit - Split up adding the charge types and adding the POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties into two different commits. v4 changes: - Add documentation for the new properties, and add documentation for the the previously missing charge_control_limit and charge_control_limit_max properties. Signed-off-by: Nick Crews <ncrews@chromium.org> Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-class-power20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 544c4e0ef8b6..a5b144f61de8 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -114,6 +114,26 @@ Description:
Access: Read
Valid values: Represented in microamps
+What: /sys/class/power_supply/<supply_name>/charge_control_start_threshold
+Date: April 2019
+Contact: linux-pm@vger.kernel.org
+Description:
+ Represents a battery percentage level, below which charging will
+ begin.
+
+ Access: Read, Write
+ Valid values: 0 - 100 (percent)
+
+What: /sys/class/power_supply/<supply_name>/charge_control_end_threshold
+Date: April 2019
+Contact: linux-pm@vger.kernel.org
+Description:
+ Represents a battery percentage level, above which charging will
+ stop.
+
+ Access: Read, Write
+ Valid values: 0 - 100 (percent)
+
What: /sys/class/power_supply/<supply_name>/charge_type
Date: July 2009
Contact: linux-pm@vger.kernel.org