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Groups > linux.kernel > #1642734

[PATCH v3 1/2] regulator: DT: Add properties for asymmetric settling times

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Some regulators have different settling times for voltage increases and
decreases. Add DT properties to define separate settling times for up-
and downward voltage changes.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Changes in v3:
- none

 Documentation/devicetree/bindings/regulator/regulator.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index d18edb075e1c..378f6dc8b8bd 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -24,6 +24,14 @@ Optional properties:
 - 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-settling-time-up-us: Settling time, in microseconds, for voltage
+  increase if the regulator needs a constant time to settle after voltage
+  increases of any level. This is useful for regulators with exponential
+  voltage changes.
+- regulator-settling-time-down-us: Settling time, in microseconds, for voltage
+  decrease if the regulator needs a constant time to settle after voltage
+  decreases of any level. This is useful for regulators with exponential
+  voltage changes.
 - 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,
-- 
2.13.0.303.g4ebf302169-goog

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[PATCH v3 1/2] regulator: DT: Add properties for asymmetric settling times Matthias Kaehlcke <mka@chromium.org> - 2017-05-16 20:50 +0200
  [PATCH v3 2/2] regulator: Allow for asymmetric settling times Matthias Kaehlcke <mka@chromium.org> - 2017-05-16 20:50 +0200
    Applied "regulator: Allow for asymmetric settling times" to the regulator tree Mark Brown <broonie@kernel.org> - 2017-05-17 12:00 +0200

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