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: <beanhuo@micron.com>, <asutoshd@codeaurora.org>,
<cang@codeaurora.org>, <matthias.bgg@gmail.com>,
<bvanassche@acm.org>, <linux-mediatek@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <kuohong.wang@mediatek.com>,
<peter.wang@mediatek.com>, <chun-hung.wu@mediatek.com>,
<andy.teng@mediatek.com>, <chaotian.jing@mediatek.com>,
<cc.chou@mediatek.com>, <jiajie.hao@mediatek.com>,
<alice.chao@mediatek.com>, Stanley Chu <stanley.chu@mediatek.com>
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
next prev parent reply other threads:[~2020-12-16 13:18 UTC|newest]
Thread overview: 14+ 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]
2020-12-18 6:08 ` [PATCH v2 1/4] scsi: ufs: Refactor cancelling clkscaling works Can Guo
2020-12-16 13:16 ` [PATCH v2 2/4] scsi: ufs: Remove redundant null checking of devfreq instance Stanley Chu
2020-12-18 5:58 ` Can Guo
2020-12-18 6:09 ` Can Guo
2020-12-16 13:16 ` [PATCH v2 3/4] scsi: ufs: Cleanup and refactor clk-scaling feature Stanley Chu
2020-12-18 6:16 ` Can Guo
2020-12-16 13:16 ` [PATCH v2 4/4] scsi: ufs: Fix build warning by incorrect function description Stanley Chu
2020-12-18 6:16 ` Can Guo
2020-12-18 6:20 ` [PATCH v2 0/4] scsi: ufs: Cleanup and refactor clock scaling Can Guo
2020-12-18 6:24 ` Stanley Chu
2020-12-18 6:30 ` Can Guo
2021-01-06 2:47 ` Martin K. Petersen
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