From a21f433fab5625c835de9b47b971bc95d2b6e2b1 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 4 Apr 2017 18:59:49 +0530 Subject: 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 Change-Id: Ia88df848c62aecb0e03838a00398655a44dc220f Acked-by: Rob Herring Signed-off-by: Mark Brown Signed-off-by: Tao Huang (cherry picked from commit cfd2cedb482ae29ce13a3db46cc24f0c082ca9cf) --- Documentation/devicetree/bindings/regulator/regulator.txt | 3 +++ 1 file changed, 3 insertions(+) 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, -- cgit v1.2.3