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From: Maciej Purski <m.purski@samsung.com>
To: Mark Brown <broonie@kernel.org>, Tony Lindgren <tony@atomide.com>
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
	Carlos Hernandez <ceh@ti.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Maciej Purski <m.purski@samsung.com>
Subject: [PATCH 6/7] regulator: core: Lock dependent regulators on regulator_enable()
Date: Mon, 04 Jun 2018 15:59:23 +0200	[thread overview]
Message-ID: <1528120764-14316-7-git-send-email-m.purski@samsung.com> (raw)
In-Reply-To: <1528120764-14316-1-git-send-email-m.purski@samsung.com>

Since regulator_enable() might now call regulator_balance_voltage(),
it should also lock its coupled regulators and suppliers.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
---
 drivers/regulator/core.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7c57268..2a7ffb7 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2305,9 +2305,9 @@ int regulator_enable(struct regulator *regulator)
 			return ret;
 	}
 
-	regulator_lock(rdev);
+	regulator_lock_dependent(rdev);
 	ret = _regulator_enable(rdev);
-	regulator_unlock(rdev);
+	regulator_unlock_dependent(rdev);
 
 	if (ret != 0 && rdev->supply)
 		regulator_disable(rdev->supply);
@@ -2415,9 +2415,9 @@ int regulator_disable(struct regulator *regulator)
 	if (regulator->always_on)
 		return 0;
 
-	regulator_lock(rdev);
+	regulator_lock_dependent(rdev);
 	ret = _regulator_disable(rdev);
-	regulator_unlock(rdev);
+	regulator_unlock_dependent(rdev);
 
 	if (ret == 0 && rdev->supply)
 		regulator_disable(rdev->supply);
@@ -2467,10 +2467,10 @@ int regulator_force_disable(struct regulator *regulator)
 	struct regulator_dev *rdev = regulator->rdev;
 	int ret;
 
-	regulator_lock(rdev);
+	regulator_lock_dependent(rdev);
 	regulator->uA_load = 0;
 	ret = _regulator_force_disable(regulator->rdev);
-	regulator_unlock(rdev);
+	regulator_unlock_dependent(rdev);
 
 	if (rdev->supply)
 		while (rdev->open_count--)
-- 
2.7.4

WARNING: multiple messages have this Message-ID (diff)
From: m.purski@samsung.com (Maciej Purski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/7] regulator: core: Lock dependent regulators on regulator_enable()
Date: Mon, 04 Jun 2018 15:59:23 +0200	[thread overview]
Message-ID: <1528120764-14316-7-git-send-email-m.purski@samsung.com> (raw)
In-Reply-To: <1528120764-14316-1-git-send-email-m.purski@samsung.com>

Since regulator_enable() might now call regulator_balance_voltage(),
it should also lock its coupled regulators and suppliers.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
---
 drivers/regulator/core.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7c57268..2a7ffb7 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2305,9 +2305,9 @@ int regulator_enable(struct regulator *regulator)
 			return ret;
 	}
 
-	regulator_lock(rdev);
+	regulator_lock_dependent(rdev);
 	ret = _regulator_enable(rdev);
-	regulator_unlock(rdev);
+	regulator_unlock_dependent(rdev);
 
 	if (ret != 0 && rdev->supply)
 		regulator_disable(rdev->supply);
@@ -2415,9 +2415,9 @@ int regulator_disable(struct regulator *regulator)
 	if (regulator->always_on)
 		return 0;
 
-	regulator_lock(rdev);
+	regulator_lock_dependent(rdev);
 	ret = _regulator_disable(rdev);
-	regulator_unlock(rdev);
+	regulator_unlock_dependent(rdev);
 
 	if (ret == 0 && rdev->supply)
 		regulator_disable(rdev->supply);
@@ -2467,10 +2467,10 @@ int regulator_force_disable(struct regulator *regulator)
 	struct regulator_dev *rdev = regulator->rdev;
 	int ret;
 
-	regulator_lock(rdev);
+	regulator_lock_dependent(rdev);
 	regulator->uA_load = 0;
 	ret = _regulator_force_disable(regulator->rdev);
-	regulator_unlock(rdev);
+	regulator_unlock_dependent(rdev);
 
 	if (rdev->supply)
 		while (rdev->open_count--)
-- 
2.7.4

  parent reply	other threads:[~2018-06-04 14:00 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-29 22:15 Regression in Linux next again Tony Lindgren
2018-05-29 22:15 ` Tony Lindgren
2018-05-30  9:13 ` Mark Brown
2018-05-30  9:13   ` Mark Brown
2018-05-30 14:03   ` Maciej Purski
2018-05-30 14:03     ` Maciej Purski
2018-05-30 14:33     ` Mark Brown
2018-05-30 14:33       ` Mark Brown
2018-05-30 14:45       ` Tony Lindgren
2018-05-30 14:45         ` Tony Lindgren
     [not found]         ` <CGME20180604135952eucas1p292f7bcec405e6a1a6261031df36cad32@eucas1p2.samsung.com>
2018-06-04 13:59           ` Maciej Purski
2018-06-04 13:59             ` Maciej Purski
     [not found]             ` <CGME20180604135952eucas1p2d76b6aa5d8fc9912113d519b48f7e99a@eucas1p2.samsung.com>
2018-06-04 13:59               ` [PATCH 1/7] regulator: core: Add debug messages Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
     [not found]             ` <CGME20180604135952eucas1p2e3fdb68bf31e32b7c9557051671885a9@eucas1p2.samsung.com>
2018-06-04 13:59               ` [PATCH 2/7] regulator: core: Add regulator_set_voltage_rdev() Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
     [not found]             ` <CGME20180604135953eucas1p2f2c9dd9581cd114d323c3d64afe5c308@eucas1p2.samsung.com>
2018-06-04 13:59               ` [PATCH 3/7] regulator: core: Use re-entrant locks Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
     [not found]             ` <CGME20180604135953eucas1p2ec281df0793bc73e79f3000837abcb04@eucas1p2.samsung.com>
2018-06-04 13:59               ` [PATCH 4/7] regulator: core: Implement voltage balancing algorithm Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
     [not found]             ` <CGME20180604135954eucas1p2156fed3300b5514a4efa2baf9e7b9bc5@eucas1p2.samsung.com>
2018-06-04 13:59               ` [PATCH 5/7] regulator: core: Lock dependent regulators Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
2018-06-04 14:20                 ` Lucas Stach
2018-06-04 14:20                   ` Lucas Stach
2018-06-18 12:37                   ` Maciej Purski
2018-06-18 12:37                     ` Maciej Purski
     [not found]             ` <CGME20180604135954eucas1p2eeb77ada3ca97fecc6caec20d7e8397a@eucas1p2.samsung.com>
2018-06-04 13:59               ` Maciej Purski [this message]
2018-06-04 13:59                 ` [PATCH 6/7] regulator: core: Lock dependent regulators on regulator_enable() Maciej Purski
     [not found]             ` <CGME20180604135954eucas1p2bebd1c4970401bb957da228056f9a662@eucas1p2.samsung.com>
2018-06-04 13:59               ` [PATCH 7/7] regulator: core: Enable voltage balancing Maciej Purski
2018-06-04 13:59                 ` Maciej Purski
2018-06-04 23:13                 ` kbuild test robot
2018-06-04 23:13                   ` kbuild test robot
2018-06-04 23:13                   ` kbuild test robot
2018-06-04 23:54                 ` kbuild test robot
2018-06-04 23:54                   ` kbuild test robot
2018-06-04 23:54                   ` kbuild test robot
2018-06-05  4:45             ` Regression in Linux next again Tony Lindgren
2018-06-05  4:45               ` Tony Lindgren
     [not found]               ` <CGME20180613103622eucas1p1778ba2c2e5dd85ccb4c488bd0a38386d@eucas1p1.samsung.com>
2018-06-13 10:33                 ` [PATCH v2] regulator: core: Enable voltage balancing Maciej Purski
2018-06-13 10:33                   ` Maciej Purski
2018-06-15 11:29                   ` Tony Lindgren
2018-06-15 11:29                     ` Tony Lindgren
2018-06-18 13:17                     ` Maciej Purski
2018-06-18 13:17                       ` Maciej Purski
     [not found]                     ` <CGME20180618140856eucas1p281619f9bf003655a3c2eac356216ab25@eucas1p2.samsung.com>
2018-06-18 14:08                       ` [PATCH] regulator: core: Pass max_uV value to regulator_set_voltage_rdev Maciej Purski
2018-06-18 14:08                         ` Maciej Purski
2018-07-02  8:05                         ` Tony Lindgren
2018-07-02  8:05                           ` Tony Lindgren
2018-09-28 20:09                           ` Dmitry Osipenko
2018-09-28 20:09                             ` Dmitry Osipenko
2018-09-28 20:09                             ` Dmitry Osipenko
2018-09-28 20:09                             ` Dmitry Osipenko
2018-09-28 20:22                             ` Tony Lindgren
2018-09-28 20:22                               ` Tony Lindgren
2018-09-28 20:36                               ` Dmitry Osipenko
2018-09-28 20:36                                 ` Dmitry Osipenko
2018-09-28 22:26                               ` Dmitry Osipenko
2018-09-28 22:26                                 ` Dmitry Osipenko
2018-09-28 22:26                                 ` Dmitry Osipenko
2018-09-28 22:41                                 ` Tony Lindgren
2018-09-28 22:41                                   ` Tony Lindgren
2018-09-28 23:17                                   ` Dmitry Osipenko
2018-09-28 23:17                                     ` Dmitry Osipenko
2018-09-28 23:17                                     ` Dmitry Osipenko
2018-09-28 23:51                                     ` Dmitry Osipenko
2018-09-28 23:51                                       ` Dmitry Osipenko
2018-09-28 23:51                                       ` Dmitry Osipenko
2018-09-29  0:27                                       ` Tony Lindgren
2018-09-29  0:27                                         ` Tony Lindgren
2018-09-29  0:44                                         ` Dmitry Osipenko
2018-09-29  0:44                                           ` Dmitry Osipenko
2018-10-01  7:25                                           ` Maciej Purski
2018-10-01  7:25                                             ` Maciej Purski
2018-10-01 13:34                                             ` Dmitry Osipenko
2018-10-01 13:34                                               ` Dmitry Osipenko
2018-05-30 14:53       ` Regression in Linux next again Naresh Kamboju
2018-05-30 14:53         ` Naresh Kamboju
2018-05-31  5:44         ` Naresh Kamboju
2018-05-31  5:44           ` Naresh Kamboju

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