tree 03734de006c786e574b97ab5ed6178078ae884c0
parent 6ca92dd7aff899777a3081c5948409f4bdef7d38
author Danesh Petigara <dpetigara@broadcom.com> 1452211413 -0800
committer Tejun Heo <tj@kernel.org> 1452271814 -0500

libata: skip debounce delay on link resume

The link resume logic uses a 200msec delay while debouncing
the SControl register. The rationale behind that delay is
to accommodate some PHYs that behave badly if their SStatus/
SControl registers are pounded immediately on resume.
The Broadcom STB SATA PHY does not seem to have this issue.
This patch introduces a new link flag that allows platforms
to skip the debounce delay if it isn't needed.

Signed-off-by: Danesh Petigara <dpetigara@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>