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Message-Id: <20250609-arm_cs_fix_clock_v3_public-v3-8-423b3f1f241d@arm.com>
Date: Mon, 09 Jun 2025 17:00:42 +0100
From: Leo Yan <leo.yan@....com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
Mike Leach <mike.leach@...aro.org>, James Clark <james.clark@...aro.org>,
Anshuman Khandual <anshuman.khandual@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, Leo Yan <leo.yan@....com>
Subject: [PATCH v3 8/9] coresight: Make clock sequence consistent
Since atclk is enabled after pclk during the probe phase, this commit
maintains the same sequence for the runtime resume flow.
Reviewed-by: Anshuman Khandual <anshuman.khandual@....com>
Signed-off-by: Leo Yan <leo.yan@....com>
---
drivers/hwtracing/coresight/coresight-funnel.c | 6 +++---
drivers/hwtracing/coresight/coresight-replicator.c | 6 +++---
drivers/hwtracing/coresight/coresight-stm.c | 6 +++---
drivers/hwtracing/coresight/coresight-tpiu.c | 6 +++---
4 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c
index 02e0dc678a32c3b1f32fc955bf8871142e3412e1..9dcfc5ce8845d9e01bb956dddab0d64de51ec397 100644
--- a/drivers/hwtracing/coresight/coresight-funnel.c
+++ b/drivers/hwtracing/coresight/coresight-funnel.c
@@ -297,11 +297,11 @@ static int funnel_runtime_resume(struct device *dev)
{
struct funnel_drvdata *drvdata = dev_get_drvdata(dev);
- if (drvdata && !IS_ERR(drvdata->atclk))
- clk_prepare_enable(drvdata->atclk);
-
if (drvdata && !IS_ERR_OR_NULL(drvdata->pclk))
clk_prepare_enable(drvdata->pclk);
+
+ if (drvdata && !IS_ERR(drvdata->atclk))
+ clk_prepare_enable(drvdata->atclk);
return 0;
}
#endif
diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index f1bbd12e63e0c130f945d8df34fb2334bd21336f..e53095603b0c0419bc96a66b23d15bb54e75e634 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -335,11 +335,11 @@ static int replicator_runtime_resume(struct device *dev)
{
struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
- if (drvdata && !IS_ERR(drvdata->atclk))
- clk_prepare_enable(drvdata->atclk);
-
if (drvdata && !IS_ERR_OR_NULL(drvdata->pclk))
clk_prepare_enable(drvdata->pclk);
+
+ if (drvdata && !IS_ERR(drvdata->atclk))
+ clk_prepare_enable(drvdata->atclk);
return 0;
}
#endif
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index a931282ec0eaf1b2a5db8ccc8f21789441cd634d..ed68d8280b1945f38d1294a5b5f557a614c90c94 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -969,11 +969,11 @@ static int stm_runtime_resume(struct device *dev)
{
struct stm_drvdata *drvdata = dev_get_drvdata(dev);
- if (drvdata && !IS_ERR(drvdata->atclk))
- clk_prepare_enable(drvdata->atclk);
-
if (drvdata && !IS_ERR_OR_NULL(drvdata->pclk))
clk_prepare_enable(drvdata->pclk);
+
+ if (drvdata && !IS_ERR(drvdata->atclk))
+ clk_prepare_enable(drvdata->atclk);
return 0;
}
#endif
diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c
index 5e47d761e1c4e99072eeb492c1eac7dd4285a591..1c5c2a82971490888c45508c68b516ab7dbf3eeb 100644
--- a/drivers/hwtracing/coresight/coresight-tpiu.c
+++ b/drivers/hwtracing/coresight/coresight-tpiu.c
@@ -218,11 +218,11 @@ static int tpiu_runtime_resume(struct device *dev)
{
struct tpiu_drvdata *drvdata = dev_get_drvdata(dev);
- if (drvdata && !IS_ERR(drvdata->atclk))
- clk_prepare_enable(drvdata->atclk);
-
if (drvdata && !IS_ERR_OR_NULL(drvdata->pclk))
clk_prepare_enable(drvdata->pclk);
+
+ if (drvdata && !IS_ERR(drvdata->atclk))
+ clk_prepare_enable(drvdata->atclk);
return 0;
}
#endif
--
2.34.1
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