Messages in this thread Patch in this message | | | From | Mark Brown <> | Date | Fri, 16 Oct 2015 18:04:21 +0100 | Subject | Applied "regulator: core: create unlocked version of regulator_set_voltage" to the regulator tree |
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The patch
regulator: core: create unlocked version of regulator_set_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 a9f226bcd9bb1941e581806e83d2c03d4043c367 Mon Sep 17 00:00:00 2001 From: Sascha Hauer <s.hauer@pengutronix.de> Date: Tue, 13 Oct 2015 12:45:25 +0200 Subject: [PATCH] regulator: core: create unlocked version of regulator_set_voltage
The unlocked version will be needed when we start propagating voltage changes to the supply regulators.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org> --- drivers/regulator/core.c | 57 +++++++++++++++++++++++++++++------------------- 1 file changed, 34 insertions(+), 23 deletions(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index f28c133693ad..5d161e11d5e6 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2761,33 +2761,14 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, return ret; } -/** - * regulator_set_voltage - set regulator output voltage - * @regulator: regulator source - * @min_uV: Minimum required voltage in uV - * @max_uV: Maximum acceptable voltage in uV - * - * Sets a voltage regulator to the desired output voltage. This can be set - * during any regulator state. IOW, regulator can be disabled or enabled. - * - * If the regulator is enabled then the voltage will change to the new value - * immediately otherwise if the regulator is disabled the regulator will - * output at the new voltage when enabled. - * - * NOTE: If the regulator is shared between several devices then the lowest - * request voltage that meets the system constraints will be used. - * Regulator system constraints must be set for this regulator before - * calling this function otherwise this call will fail. - */ -int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV) +static int regulator_set_voltage_unlocked(struct regulator *regulator, + int min_uV, int max_uV) { struct regulator_dev *rdev = regulator->rdev; int ret = 0; int old_min_uV, old_max_uV; int current_uV; - mutex_lock(&rdev->mutex); - /* If we're setting the same range as last time the change * should be a noop (some cpufreq implementations use the same * voltage for multiple frequencies, for example). @@ -2835,12 +2816,42 @@ int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV) goto out2; out: - mutex_unlock(&rdev->mutex); return ret; out2: regulator->min_uV = old_min_uV; regulator->max_uV = old_max_uV; - mutex_unlock(&rdev->mutex); + + return ret; +} + +/** + * regulator_set_voltage - set regulator output voltage + * @regulator: regulator source + * @min_uV: Minimum required voltage in uV + * @max_uV: Maximum acceptable voltage in uV + * + * Sets a voltage regulator to the desired output voltage. This can be set + * during any regulator state. IOW, regulator can be disabled or enabled. + * + * If the regulator is enabled then the voltage will change to the new value + * immediately otherwise if the regulator is disabled the regulator will + * output at the new voltage when enabled. + * + * NOTE: If the regulator is shared between several devices then the lowest + * request voltage that meets the system constraints will be used. + * Regulator system constraints must be set for this regulator before + * calling this function otherwise this call will fail. + */ +int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV) +{ + int ret = 0; + + mutex_lock(®ulator->rdev->mutex); + + ret = regulator_set_voltage_unlocked(regulator, min_uV, max_uV); + + mutex_unlock(®ulator->rdev->mutex); + return ret; } EXPORT_SYMBOL_GPL(regulator_set_voltage); -- 2.6.1
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