mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: SEO HOYOUNG <hy50.seo@samsung.com>
To: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
	kwmad.kim@samsung.com, alim.akhtar@samsung.com,
	avri.altman@wdc.com, jejb@linux.ibm.com,
	martin.petersen@oracle.com, beanhuo@micron.com,
	asutoshd@codeaurora.org, cang@codeaurora.org, bvanassche@acm.org,
	grant.jung@samsung.com, junwoo80.lee@samsung.com,
	bhoon95.kim@samsung.com
Cc: SEO HOYOUNG <hy50.seo@samsung.com>
Subject: [PATCH v1] scsi: ufs: modify Tactive time setting conditions
Date: Fri,  7 Jan 2022 04:48:04 +0900	[thread overview]
Message-ID: <20220106194804.23892-1-hy50.seo@samsung.com> (raw)
In-Reply-To: <CGME20220107080332epcas2p216d8123df110623b4287ebf6879f745f@epcas2p2.samsung.com>

The Tactive time determine the waiting time before burst
at hibern8 exit and is determined by H/W at linkup state
However, in the case of samsung devices, guided host's Tactive time +100us
for stability.
If the HCI's Tactive time is equal or greater than the device, +100us should be set.

Change-Id: Ie9b502c69264d3e5931ee8b515388094441fa065
Signed-off-by: SEO HOYOUNG <hy50.seo@samsung.com>
---
 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 1049e41abd5b..460d2b440d2e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7815,7 +7815,7 @@ static int ufshcd_quirk_tune_host_pa_tactivate(struct ufs_hba *hba)
 	peer_pa_tactivate_us = peer_pa_tactivate *
 			     gran_to_us_table[peer_granularity - 1];
 
-	if (pa_tactivate_us > peer_pa_tactivate_us) {
+	if (pa_tactivate_us >= peer_pa_tactivate_us) {
 		u32 new_peer_pa_tactivate;
 
 		new_peer_pa_tactivate = pa_tactivate_us /
-- 
2.26.0


       reply	other threads:[~2022-01-07  8:03 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20220107080332epcas2p216d8123df110623b4287ebf6879f745f@epcas2p2.samsung.com>
2022-01-06 19:48 ` SEO HOYOUNG [this message]
2022-01-07  8:26   ` Alim Akhtar

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220106194804.23892-1-hy50.seo@samsung.com \
    --to=hy50.seo@samsung.com \
    --cc=alim.akhtar@samsung.com \
    --cc=asutoshd@codeaurora.org \
    --cc=avri.altman@wdc.com \
    --cc=beanhuo@micron.com \
    --cc=bhoon95.kim@samsung.com \
    --cc=bvanassche@acm.org \
    --cc=cang@codeaurora.org \
    --cc=grant.jung@samsung.com \
    --cc=jejb@linux.ibm.com \
    --cc=junwoo80.lee@samsung.com \
    --cc=kwmad.kim@samsung.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-scsi@vger.kernel.org \
    --cc=martin.petersen@oracle.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®