+++ /dev/null
-From 3a2f7fc63430e869b49c05738eb23e7b95f6bfff Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Mon, 24 Oct 2022 08:32:39 +0200
-Subject: Revert "coresight: cti: Fix hang in cti_disable_hw()"
-
-From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
-[ Upstream commit d76308f03ee1574b0deffde45604252a51c77f6d ]
-
-This reverts commit 665c157e0204176023860b51a46528ba0ba62c33.
-
-It causes reported build warnings:
-
-drivers/hwtracing/coresight/coresight-cti-core.c: In functio
-n 'cti_enable_hw':
-drivers/hwtracing/coresight/coresight-cti-core.c:93:24: warning: unused variable 'dev' [-Wunused-variable]
- 93 | struct device *dev = &drvdata->csdev->dev;
- | ^~~
-drivers/hwtracing/coresight/coresight-cti-core.c: In function 'cti_disable_hw':
-drivers/hwtracing/coresight/coresight-cti-core.c:154:24: warning: unused variable 'dev' [-Wunused-variable]
- 154 | struct device *dev = &drvdata->csdev->dev;
- | ^~~
-
-Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
-Cc: Aishwarya TCV <Aishwarya.TCV@arm.com>
-Cc: Cristian Marussi <Cristian.Marussi@arm.com>
-Cc: Suzuki Poulose <Suzuki.Poulose@arm.com>
-Cc: James Clark <james.clark@arm.com>
-Cc: Mike Leach <mike.leach@linaro.org>
-Cc: Mike Leach <mike.leach@linaro.org>
-Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
-Fixes: 665c157e0204 ("coresight: cti: Fix hang in cti_disable_hw()")
-Link: https://lore.kernel.org/r/20221024135752.2b83af97@canb.auug.org.au
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- drivers/hwtracing/coresight/coresight-cti-core.c | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/drivers/hwtracing/coresight/coresight-cti-core.c b/drivers/hwtracing/coresight/coresight-cti-core.c
-index dcd607a0c41a..5c2ebb5323a5 100644
---- a/drivers/hwtracing/coresight/coresight-cti-core.c
-+++ b/drivers/hwtracing/coresight/coresight-cti-core.c
-@@ -93,6 +93,7 @@ static int cti_enable_hw(struct cti_drvdata *drvdata)
- unsigned long flags;
- int rc = 0;
-
-+ pm_runtime_get_sync(dev->parent);
- spin_lock_irqsave(&drvdata->spinlock, flags);
-
- /* no need to do anything if enabled or unpowered*/
-@@ -117,6 +118,7 @@ static int cti_enable_hw(struct cti_drvdata *drvdata)
- /* cannot enable due to error */
- cti_err_not_enabled:
- spin_unlock_irqrestore(&drvdata->spinlock, flags);
-+ pm_runtime_put(dev->parent);
- return rc;
- }
-
-@@ -171,6 +173,7 @@ static int cti_disable_hw(struct cti_drvdata *drvdata)
- coresight_disclaim_device_unlocked(csdev);
- CS_LOCK(drvdata->base);
- spin_unlock(&drvdata->spinlock);
-+ pm_runtime_put(dev->parent);
- return 0;
-
- /* not disabled this call */
---
-2.35.1
-