linux-kernel - Applied "regulator: core: Define regulator_set_voltage

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Date:	Mon, 17 Aug 2015 13:07:00 -0700
From:	Mark Brown <broonie@...nel.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>,
	Mark Brown <broonie@...nel.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Applied "regulator: core: Define regulator_set_voltage_triplet()" to the regulator tree

The patch

   regulator: core: Define regulator_set_voltage_triplet()

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 30f93ca8323f0c21b789bea0f7db8e8e3a7915c6 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@...aro.org>
Date: Mon, 17 Aug 2015 08:16:51 +0530
Subject: [PATCH] regulator: core: Define regulator_set_voltage_triplet()

Voltage tolerance isn't necessarily same on both sides of the target
voltage and regulator_set_voltage_tol() wouldn't be suitable in such
cases.

Add another routine regulator_set_voltage_triplet(), which accepts
target, min and max voltages as arguments.

This first tries to set the voltage between the target voltage and the
upper limit, then fall back on the full range. The idea behind this is
to set regulator's voltage as close to the target voltage, as possible.

Based on regulator_set_voltage_tol().

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 include/linux/regulator/consumer.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index f8a689e..e325d46 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -552,6 +552,16 @@ static inline int regulator_count_voltages(struct regulator *regulator)
 }
 #endif

+static inline int regulator_set_voltage_triplet(struct regulator *regulator,
+						int min_uV, int target_uV,
+						int max_uV)
+{
+	if (regulator_set_voltage(regulator, target_uV, max_uV) == 0)
+		return 0;
+
+	return regulator_set_voltage(regulator, min_uV, max_uV);
+}
+
 static inline int regulator_set_voltage_tol(struct regulator *regulator,
 					    int new_uV, int tol_uV)
 {
-- 
2.5.0

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