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From: Can Guo <cang@codeaurora.org>
To: asutoshd@codeaurora.org, nguyenb@codeaurora.org,
	rnayak@codeaurora.org, linux-scsi@vger.kernel.org,
	kernel-team@android.com, saravanak@google.com,
	salyzyn@google.com, cang@codeaurora.org
Cc: Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	Pedro Sousa <pedrom.sousa@synopsys.com>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Stanley Chu <stanley.chu@mediatek.com>,
	Bean Huo <beanhuo@micron.com>,
	Subhash Jadavani <subhashj@codeaurora.org>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Venkat Gopalakrishnan <venkatg@codeaurora.org>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v1 5/6] scsi: ufs: Abort gating if clock on request is pending
Date: Fri,  1 Nov 2019 22:03:35 -0700	[thread overview]
Message-ID: <1572671016-883-6-git-send-email-cang@codeaurora.org> (raw)
In-Reply-To: <1572671016-883-1-git-send-email-cang@codeaurora.org>

From: Asutosh Das <asutoshd@codeaurora.org>

This change attempts to abort gating of clocks if a
request to turn-on clocks is pending.
This would in turn avoid turning OFF and back ON the
clocks.

Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ee591cc..c9ef2dd 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1610,7 +1610,7 @@ static void ufshcd_gate_work(struct work_struct *work)
 	 * state to CLKS_ON.
 	 */
 	if (hba->clk_gating.is_suspended ||
-		(hba->clk_gating.state == REQ_CLKS_ON)) {
+		(hba->clk_gating.state != REQ_CLKS_OFF)) {
 		hba->clk_gating.state = CLKS_ON;
 		trace_ufshcd_clk_gating(dev_name(hba->dev),
 					hba->clk_gating.state);
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


  parent reply	other threads:[~2019-11-02  5:04 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1572671016-883-1-git-send-email-cang@codeaurora.org>
2019-11-02  5:03 ` [PATCH v1 1/6] scsi: ufs: Add device reset in link recovery path Can Guo
2019-11-03 21:48   ` [EXT] " Bean Huo (beanhuo)
2019-11-04  0:59     ` cang
2019-11-02  5:03 ` [PATCH v1 2/6] scsi: ufs-qcom: Add reset control support for host controller Can Guo
2019-11-02  5:03 ` [PATCH v1 3/6] scsi: ufs: Fix up auto hibern8 enablement Can Guo
2019-11-02  5:03 ` [PATCH v1 4/6] scsi: ufs: Fix irq return code Can Guo
2019-11-02  5:03 ` Can Guo [this message]
2019-11-02  5:03 ` [PATCH v1 6/6] scsi: ufs: Fix error handing during hibern8 enter Can Guo

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