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From: Leo Yan <leo.yan@arm.com>
To: Suzuki K Poulose <suzuki.poulose@arm.com>,
	 Mike Leach <mike.leach@linaro.org>,
	James Clark <james.clark@linaro.org>,
	 Anshuman Khandual <anshuman.khandual@arm.com>,
	 Yeoreum Yun <yeoreum.yun@arm.com>,
	 Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
	 linux-kernel@vger.kernel.org, Leo Yan <leo.yan@arm.com>
Subject: [PATCH v5 09/10] coresight: Make clock sequence consistent
Date: Thu, 24 Jul 2025 16:22:39 +0100	[thread overview]
Message-ID: <20250724-arm_cs_fix_clock_v4-v5-9-63f648dae021@arm.com> (raw)
In-Reply-To: <20250724-arm_cs_fix_clock_v4-v5-0-63f648dae021@arm.com>

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@arm.com>
Reviewed-by: Yeoreum Yun <yeoreum.yun@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.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 23ba33ac4d2ed8d63f1e0fb922e7f6e44de86cd1..7b1e289f17ab2000816d8641fe0a79759452d3b4 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


  parent reply	other threads:[~2025-07-24 15:23 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-24 15:22 [PATCH v5 00/10] coresight: Fix and improve clock usage Leo Yan
2025-07-24 15:22 ` [PATCH v5 01/10] coresight: tmc: Support atclk Leo Yan
2025-07-24 15:22 ` [PATCH v5 02/10] coresight: catu: " Leo Yan
2025-07-24 15:22 ` [PATCH v5 03/10] coresight: etm4x: " Leo Yan
2025-07-24 15:22 ` [PATCH v5 04/10] coresight: Appropriately disable programming clocks Leo Yan
2025-07-28 16:18   ` Mark Brown
2025-07-28 16:44   ` Mark Brown
2025-07-29 11:31     ` Mark Brown
2025-07-29 12:30       ` Suzuki K Poulose
2025-07-30  8:56         ` Leo Yan
2025-07-30  9:27           ` Suzuki K Poulose
2025-07-30 10:54             ` Leo Yan
2025-07-30 11:01               ` Suzuki K Poulose
2025-07-30 11:09                 ` Mark Brown
2025-07-30 17:57                   ` Leo Yan
2025-07-24 15:22 ` [PATCH v5 05/10] coresight: Appropriately disable trace bus clocks Leo Yan
2025-07-24 15:22 ` [PATCH v5 06/10] coresight: Avoid enable programming clock duplicately Leo Yan
2025-07-24 15:22 ` [PATCH v5 07/10] coresight: Consolidate clock enabling Leo Yan
2025-07-24 15:22 ` [PATCH v5 08/10] coresight: Refactor driver data allocation Leo Yan
2025-07-24 15:22 ` Leo Yan [this message]
2025-07-24 15:22 ` [PATCH v5 10/10] coresight: Refactor runtime PM Leo Yan
2025-07-25  8:45 ` [PATCH v5 00/10] coresight: Fix and improve clock usage James Clark
2025-07-25  9:22 ` Suzuki K Poulose
2025-07-29 12:31   ` Suzuki K Poulose

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