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Commit cfd2cedb authored by Laxman Dewangan's avatar Laxman Dewangan Committed by Mark Brown
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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: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Acked-by: default avatarRob Herring <robh@kernel.org>

Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d00b7461

Documentation/devicetree/bindings/regulator/regulator.txt

+3 −0
Original line number Original line Diff line number Diff line
@@ -21,6 +21,9 @@ Optional properties: 
  design requires. This property describes the total system ramp time

  design requires. This property describes the total system ramp time

  required due to the combination of internal ramping of the regulator itself,

  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.

  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-soft-start: Enable soft start so that voltage ramps slowly

- regulator-state-mem sub-root node for Suspend-to-RAM mode

- 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,

  : suspend to memory, the device goes to sleep, but all data stored in memory,