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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Liam Girdwood <lrg@ti.com>
Cc: linux-kernel@vger.kernel.org,
	Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: [PATCH] regulator: core: Fast path non-deferred disables
Date: Fri,  7 Sep 2012 11:01:20 +0800	[thread overview]
Message-ID: <1346986880-28846-1-git-send-email-broonie@opensource.wolfsonmicro.com> (raw)

Users (especially framework code) may end up passing in a zero deferral
time depending on runtime conditions or configuration. If they do then
just call regulator_disable() directly to save scheduling.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/regulator/core.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index e6bb1f9..3ddc837 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1749,6 +1749,9 @@ int regulator_disable_deferred(struct regulator *regulator, int ms)
 	if (regulator->always_on)
 		return 0;
 
+	if (!ms)
+		return regulator_disable(regulator);
+
 	mutex_lock(&rdev->mutex);
 	rdev->deferred_disables++;
 	mutex_unlock(&rdev->mutex);
-- 
1.7.10.4


             reply	other threads:[~2012-09-07  3:01 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-07  3:01 Mark Brown [this message]
2012-09-07 15:03 ` [PATCH] regulator: core: Fast path non-deferred disables Liam Girdwood

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