From: Asutosh Das <asutoshd@codeaurora.org>
To: subhashj@codeaurora.org, cang@codeaurora.org,
vivek.gautam@codeaurora.org, rnayak@codeaurora.org,
vinholikatti@gmail.com, jejb@linux.vnet.ibm.com,
martin.petersen@oracle.com, linux-scsi@vger.kernel.org
Cc: Sujit Reddy Thumma <sthumma@codeaurora.org>,
linux-arm-msm@vger.kernel.org,
Gilad Broner <gbroner@codeaurora.org>,
Asutosh Das <asutoshd@codeaurora.org>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v1 3/9] scsi: ufs: Override auto suspend tunables for ufs
Date: Fri, 6 Jul 2018 18:00:30 +0530 [thread overview]
Message-ID: <6981189193244970a912c8b3f390a00bc37ed14a.1530880006.git.asutoshd@codeaurora.org> (raw)
In-Reply-To: <cover.1530880006.git.asutoshd@codeaurora.org>
In-Reply-To: <cover.1530880006.git.asutoshd@codeaurora.org>
From: Sujit Reddy Thumma <sthumma@codeaurora.org>
Override auto suspend tunables for UFS device LUNs during
initialization so as to efficiently manage background operations
and the power consumption.
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
---
drivers/scsi/ufs/ufshcd.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 77e2b3e..b03f3ea 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -89,6 +89,9 @@
/* Interrupt aggregation default timeout, unit: 40us */
#define INT_AGGR_DEF_TO 0x02
+/* default value of auto suspend is 3 seconds */
+#define UFSHCD_AUTO_SUSPEND_DELAY_MS 3000 /* millisecs */
+
#define ufshcd_toggle_vreg(_dev, _vreg, _on) \
({ \
int _ret; \
@@ -4528,6 +4531,9 @@ static int ufshcd_slave_configure(struct scsi_device *sdev)
blk_queue_update_dma_pad(q, PRDT_DATA_BYTE_COUNT_PAD - 1);
blk_queue_max_segment_size(q, PRDT_DATA_BYTE_COUNT_MAX);
+ sdev->autosuspend_delay = UFSHCD_AUTO_SUSPEND_DELAY_MS;
+ sdev->use_rpm_auto = 1;
+
return 0;
}
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2018-07-06 12:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1530880006.git.asutoshd@codeaurora.org>
2018-07-06 12:30 ` [PATCH v1 1/9] scsi: ufs: add support to allow non standard behaviours (quirks) Asutosh Das
2018-07-06 12:30 ` [PATCH v1 2/9] scsi: Allow auto suspend override by low-level driver Asutosh Das
2018-07-11 10:45 ` Adrian Hunter
2018-07-20 23:50 ` Subhash Jadavani
2018-07-06 12:30 ` Asutosh Das [this message]
2018-07-11 10:46 ` [PATCH v1 3/9] scsi: ufs: Override auto suspend tunables for ufs Adrian Hunter
2018-07-20 23:51 ` Subhash Jadavani
2018-07-06 12:30 ` [PATCH v1 4/9] scsi: ufs: add option to change default UFS power management level Asutosh Das
2018-07-11 10:50 ` Adrian Hunter
2018-07-23 3:09 ` Asutosh Das (asd)
2018-07-11 20:33 ` Rob Herring
2018-07-23 3:20 ` Asutosh Das (asd)
2018-07-23 14:36 ` Rob Herring
2018-07-24 3:34 ` Asutosh Das (asd)
2018-07-06 12:30 ` [PATCH v1 5/9] scsi: ufs: add support for hibern8 on idle Asutosh Das
2018-07-06 12:30 ` [PATCH v1 6/9] scsi: ufs: optimize clock, pm_qos, hibern8 handling in queuecommand Asutosh Das
2018-07-06 12:30 ` [PATCH v1 7/9] scsi: ufs: add UFS power collapse support during hibern8 Asutosh Das
2018-07-20 23:58 ` Subhash Jadavani
2018-07-23 3:07 ` Asutosh Das (asd)
2018-07-06 12:30 ` [PATCH v1 8/9] scsi: ufs: enable runtime pm only after ufshcd init Asutosh Das
2018-07-21 0:05 ` Subhash Jadavani
2018-07-06 12:30 ` [PATCH v1 9/9] scsi: ufs: enable FASTAUTO mode during low load condition Asutosh Das
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