scsi: ufs: add load based scaling of UFS gear

Browse source

UFS driver's load based clock scaling feature scales down the ufs related
clocks in order to allow low power modes of chipsets. UniPro 1.6 supports
maximum gear up to HS-G3 (High Speed Gear3) and some of the chipsets
low power modes may not be allowed in HS-G3 hence this change adds support
to scale gear between HS-G3 and HS-G1 based on same existing load based
clock scaling logic.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

...

This commit is contained in:

subhashj@codeaurora.org 2017-02-03 16:57:02 -08:00 • committed by Martin K. Petersen

parent 7fabb77b3a

commit a3cd5ec55f

2 changed files with 428 additions and 175 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

594

drivers/scsi/ufs/ufshcd.c

View file

9

drivers/scsi/ufs/ufshcd.h

View file