diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2017-04-04 18:59:49 +0530 |
|---|---|---|
| committer | Tao Huang <huangtao@rock-chips.com> | 2018-03-22 11:14:38 +0800 |
| commit | a21f433fab5625c835de9b47b971bc95d2b6e2b1 (patch) | |
| tree | cfe3f346180a2cd8afb049ed295fc3727527527f | |
| parent | 3c27fb4c5132c18b50eb618d6d825f79fccfb64e (diff) | |
UPSTREAM: regulator: DT: Add settling time property for non-linear voltage change
Some regulators (some PWM regulators) have the voltage transition
exponentially. On such cases, the settling time for voltage change
is treated as constant time.
Add DT property for providing the settling time for any level of
voltage change for non-linear voltage change.
signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Change-Id: Ia88df848c62aecb0e03838a00398655a44dc220f
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from commit cfd2cedb482ae29ce13a3db46cc24f0c082ca9cf)
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/regulator.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 1d112fc456aa..a7ab1f9486c5 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -21,6 +21,9 @@ Optional properties: design requires. This property describes the total system ramp time required due to the combination of internal ramping of the regulator itself, and board design issues such as trace capacitance and load on the supply. +- regulator-settling-time-us: Settling time, in microseconds, for voltage + change if regulator have the constant time for any level voltage change. + This is useful when regulator have exponential voltage change. - regulator-soft-start: Enable soft start so that voltage ramps slowly - regulator-state-mem sub-root node for Suspend-to-RAM mode : suspend to memory, the device goes to sleep, but all data stored in memory, |