scsi: ufs: Add dev ref clock gating wait time support

Browse source

In UFS version 3.0, a newly added attribute bRefClkGatingWaitTime defines
the minimum time for which the reference clock is required by device during
transition to LS-MODE or HIBERN8 state. Make this change to reflect the new
requirement by adding delays before turning off the clock.

Link: https://lore.kernel.org/r/1581392451-28743-7-git-send-email-cang@codeaurora.org
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

...

This commit is contained in:

Can Guo 2020-02-10 19:40:49 -08:00 • committed by Martin K. Petersen

parent c63d6099a7

commit 09f17791e6

2 changed files with 37 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/scsi/ufs/ufs.h

View file

34

drivers/scsi/ufs/ufshcd.c

View file