diff options
| author | Subbaraman Narayanamurthy <subbaram@codeaurora.org> | 2016-09-14 14:48:49 -0700 |
|---|---|---|
| committer | Subbaraman Narayanamurthy <subbaram@codeaurora.org> | 2016-10-10 09:44:05 -0700 |
| commit | cdb65a95a8d4ffbc11f890ecdeb7b3a55d47f000 (patch) | |
| tree | b169bbabd94a3d804c1566efdcf5e290b6098008 /Documentation/devicetree | |
| parent | 0edd25653c344358c440dc8a4f97134adfe65e88 (diff) | |
power: qpnp-fg-gen3: add capacity learning feature
Batteries age across the time. Capacity learning is a feature
which uses the hardware autonomous coulomb counter to determine
the actual battery capacity against the advertised full capacity.
This will be useful to determine how much degradation has
happened to the battery. Capacity learning algorithm will start
based on some pre-set conditions like start SOC, battery
temperature and ends when the charging cycle is complete.
Actual capacity will be exposed through charge_full property.
Change-Id: I89cc14d213b0de10bc8d052dd76e1468fe9c30e5
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/power/qcom-charger/qpnp-fg-gen3.txt | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power/qcom-charger/qpnp-fg-gen3.txt b/Documentation/devicetree/bindings/power/qcom-charger/qpnp-fg-gen3.txt index 894924c56947..a3b265cd688a 100644 --- a/Documentation/devicetree/bindings/power/qcom-charger/qpnp-fg-gen3.txt +++ b/Documentation/devicetree/bindings/power/qcom-charger/qpnp-fg-gen3.txt @@ -153,6 +153,55 @@ First Level Node - FG Gen3 device loaded earlier by bootloader doesn't match with the profile available in the device tree. +- qcom,cl-start-capacity + Usage: optional + Value type: <u32> + Definition: Battery SOC threshold to start the capacity learning. + If this is not specified, then the default value used + will be 15. + +- qcom,cl-min-temp + Usage: optional + Value type: <u32> + Definition: Lower limit of battery temperature to start the capacity + learning. If this is not specified, then the default value + used will be 150. Unit is in decidegC. + +- qcom,cl-max-temp + Usage: optional + Value type: <u32> + Definition: Upper limit of battery temperature to start the capacity + learning. If this is not specified, then the default value + used will be 450 (45C). Unit is in decidegC. + +- qcom,cl-max-increment + Usage: optional + Value type: <u32> + Definition: Maximum capacity increment allowed per capacity learning + cycle. If this is not specified, then the default value + used will be 5 (0.5%). Unit is in decipercentage. + +- qcom,cl-max-decrement + Usage: optional + Value type: <u32> + Definition: Maximum capacity decrement allowed per capacity learning + cycle. If this is not specified, then the default value + used will be 100 (10%). Unit is in decipercentage. + +- qcom,cl-min-limit + Usage: optional + Value type: <u32> + Definition: Minimum limit that the capacity cannot go below in a + capacity learning cycle. If this is not specified, then + the default value is 0. Unit is in decipercentage. + +- qcom,cl-max-limit + Usage: optional + Value type: <u32> + Definition: Maximum limit that the capacity cannot go above in a + capacity learning cycle. If this is not specified, then + the default value is 0. Unit is in decipercentage. + ========================================================== Second Level Nodes - Peripherals managed by FG Gen3 driver ========================================================== |