linux-kernel - Applied "regulator: Deprecate regulator_can_change

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Message-Id: <E1alLVK-0005I5-Ex@finisterre>
Date:	Wed, 30 Mar 2016 12:10:10 -0700
From:	Mark Brown <broonie@...nel.org>
To:	Mark Brown <broonie@...nel.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Applied "regulator: Deprecate regulator_can_change_voltage()" to the regulator tree

The patch

   regulator: Deprecate regulator_can_change_voltage()

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 6a0028b3dd67b86d7265ed873c8738743adec855 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@...nel.org>
Date: Wed, 30 Mar 2016 12:04:30 -0700
Subject: [PATCH] regulator: Deprecate regulator_can_change_voltage()

All current users of regulator_can_change_voltage() are abusing it,
using it to wrap a call to regulator_set_voltage() on probe without any
alternative handling for fixed voltages.  Drivers should only be using
regulator_set_voltage() if they need to vary voltages at runtime, fixed
voltages should normally be set via machine constraints, and calling
regulator_set_voltage() on a regulator which can't be varied will
succeed if the current voltage is within the range requested so users
shouldn't worry if they have permission to vary normally.

Deprecate the API to try to stop any new users appearing while we fix
the current callers.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 include/linux/regulator/consumer.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 48603506f8de..80dc4e51d14a 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -224,7 +224,7 @@ int regulator_bulk_force_disable(int num_consumers,
 void regulator_bulk_free(int num_consumers,
 			 struct regulator_bulk_data *consumers);

-int regulator_can_change_voltage(struct regulator *regulator);
+int __deprecated regulator_can_change_voltage(struct regulator *regulator);
 int regulator_count_voltages(struct regulator *regulator);
 int regulator_list_voltage(struct regulator *regulator, unsigned selector);
 int regulator_is_supported_voltage(struct regulator *regulator,
@@ -436,7 +436,7 @@ static inline void regulator_bulk_free(int num_consumers,
 {
 }

-static inline int regulator_can_change_voltage(struct regulator *regulator)
+static inline int __deprecated regulator_can_change_voltage(struct regulator *regulator)
 {
 	return 0;
 }
-- 
2.8.0.rc3