linux-kernel - Applied "regulator: DT: Add settling time property for non-linear voltage change" to the regulator tree

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Date:   Wed, 05 Apr 2017 18:31:20 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Laxman Dewangan <ldewangan@...dia.com>
Cc:     Rob Herring <robh@...nel.org>, Mark Brown <broonie@...nel.org>,
        broonie@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
        lgirdwood@...il.com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        Aleksandr Frid <afrid@...dia.com>, linux-kernel@...r.kernel.org
Subject: Applied "regulator: DT: Add settling time property for non-linear voltage change" to the regulator tree

The patch

   regulator: DT: Add settling time property for non-linear voltage change

has been applied to the regulator tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From cfd2cedb482ae29ce13a3db46cc24f0c082ca9cf Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@...dia.com>
Date: Tue, 4 Apr 2017 18:59:49 +0530
Subject: [PATCH] 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@...dia.com>
Acked-by: Rob Herring <robh@...nel.org>

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 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 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,
-- 
2.11.0