From: Laxman Dewangan Date: Tue, 4 Apr 2017 13:29:49 +0000 (+0530) Subject: regulator: DT: Add settling time property for non-linear voltage change X-Git-Tag: v4.12-rc1~111^2~1^4~1 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cfd2cedb482ae29ce13a3db46cc24f0c082ca9cf;p=karo-tx-linux.git 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 Acked-by: Rob Herring Signed-off-by: Mark Brown --- diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 6ab5aef619d9..d18edb075e1c 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,