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From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
	<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
	<jejb@linux.ibm.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>,
	alice.chao@mediatek.com, bvanassche@acm.org,
	andy.teng@mediatek.com, cc.chou@mediatek.com,
	chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
	linux-kernel@vger.kernel.org, jiajie.hao@mediatek.com,
	cang@codeaurora.org, linux-mediatek@lists.infradead.org,
	peter.wang@mediatek.com, matthias.bgg@gmail.com,
	beanhuo@micron.com, chaotian.jing@mediatek.com,
	linux-arm-kernel@lists.infradead.org, asutoshd@codeaurora.org
Subject: [PATCH v2 1/4] scsi: ufs: Refactor cancelling clkscaling works
Date: Wed, 16 Dec 2020 21:16:36 +0800	[thread overview]
Message-ID: <20201216131639.4128-2-stanley.chu@mediatek.com> (raw)
In-Reply-To: <20201216131639.4128-1-stanley.chu@mediatek.com>

Cancelling suspend_work and resume_work is only required while
suspending clk-scaling. Thus moving these two invokes into
ufshcd_suspend_clkscaling() function.

Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
 drivers/scsi/ufs/ufshcd.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 052479a56a6f..a91b73a1fc48 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1451,6 +1451,9 @@ static void ufshcd_suspend_clkscaling(struct ufs_hba *hba)
 	if (!ufshcd_is_clkscaling_supported(hba))
 		return;
 
+	cancel_work_sync(&hba->clk_scaling.suspend_work);
+	cancel_work_sync(&hba->clk_scaling.resume_work);
+
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	if (!hba->clk_scaling.is_suspended) {
 		suspend = true;
@@ -1514,9 +1517,6 @@ static ssize_t ufshcd_clkscale_enable_store(struct device *dev,
 	pm_runtime_get_sync(hba->dev);
 	ufshcd_hold(hba, false);
 
-	cancel_work_sync(&hba->clk_scaling.suspend_work);
-	cancel_work_sync(&hba->clk_scaling.resume_work);
-
 	if (value) {
 		ufshcd_resume_clkscaling(hba);
 	} else {
@@ -5663,11 +5663,8 @@ static void ufshcd_err_handling_prepare(struct ufs_hba *hba)
 		ufshcd_vops_resume(hba, UFS_RUNTIME_PM);
 	} else {
 		ufshcd_hold(hba, false);
-		if (hba->clk_scaling.is_enabled) {
-			cancel_work_sync(&hba->clk_scaling.suspend_work);
-			cancel_work_sync(&hba->clk_scaling.resume_work);
+		if (hba->clk_scaling.is_enabled)
 			ufshcd_suspend_clkscaling(hba);
-		}
 	}
 	down_write(&hba->clk_scaling_lock);
 	hba->clk_scaling.is_allowed = false;
@@ -8512,11 +8509,9 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	ufshcd_hold(hba, false);
 	hba->clk_gating.is_suspended = true;
 
-	if (hba->clk_scaling.is_enabled) {
-		cancel_work_sync(&hba->clk_scaling.suspend_work);
-		cancel_work_sync(&hba->clk_scaling.resume_work);
+	if (hba->clk_scaling.is_enabled)
 		ufshcd_suspend_clkscaling(hba);
-	}
+
 	down_write(&hba->clk_scaling_lock);
 	hba->clk_scaling.is_allowed = false;
 	up_write(&hba->clk_scaling_lock);
-- 
2.18.0
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  reply	other threads:[~2020-12-16 13:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-16 13:16 [PATCH v2 0/4] scsi: ufs: Cleanup and refactor clock scaling Stanley Chu
2020-12-16 13:16 ` Stanley Chu [this message]
2020-12-16 13:16 ` [PATCH v2 2/4] scsi: ufs: Remove redundant null checking of devfreq instance Stanley Chu
2020-12-16 13:16 ` [PATCH v2 3/4] scsi: ufs: Cleanup and refactor clk-scaling feature Stanley Chu
2020-12-16 13:16 ` [PATCH v2 4/4] scsi: ufs: Fix build warning by incorrect function description Stanley Chu
     [not found] ` <e939a0fd4afd1691f3e1a8182515ca64@codeaurora.org>
2020-12-18  6:24   ` [PATCH v2 0/4] scsi: ufs: Cleanup and refactor clock scaling Stanley Chu
2021-01-06  2:47 ` Martin K. Petersen

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