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From: Sundar Iyer on 17 May 2010 10:50
From: Sundar R Iyer <sundar.iyer(a)stericsson.com>

Cc: Liam Girdwood <lrg(a)slimlogic.co.uk>
Cc: Mark Brown <broonie(a)opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij(a)stericsson.com>
Signed-off-by: Sundar R Iyer <sundar.iyer(a)stericsson.com>
---
drivers/regulator/core.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 98e5d14..5054add 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1599,6 +1599,7 @@ int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV)
{
struct regulator_dev *rdev = regulator->rdev;
int ret;
+ int regulator_curr_mode;

mutex_lock(&rdev->mutex);

@@ -1754,6 +1755,13 @@ int regulator_set_mode(struct regulator *regulator, unsigned int mode)
goto out;
}

+ /* return if the same mode is requested */
+ regulator_curr_mode = rdev->desc->ops->get_mode(rdev);
+ if (regulator_curr_mode == mode) {
+ ret = 0;
+ goto out;
+ }
+
/* constraints check */
ret = regulator_check_mode(rdev, mode);
if (ret < 0)
--
1.7.0

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Next: [PATCH] Typo in drivers/base/core.c