Commit 112625ec authored by Daehwan Jung's avatar Daehwan Jung Committed by Greg Kroah-Hartman
Browse files

xhci: Add a quirk for writing ERST in high-low order



[ Upstream commit bc162403 ]

This quirk is for the controller that has a limitation in supporting
separate ERSTBA_HI and ERSTBA_LO programming. It's supported when
the ERSTBA is programmed ERSTBA_HI before ERSTBA_LO. That's because
the internal initialization of event ring fetches the
"Event Ring Segment Table Entry" based on the indication of ERSTBA_LO
written.

Signed-off-by: default avatarDaehwan Jung <dh10.jung@samsung.com>
Link: https://lore.kernel.org/r/1718019553-111939-3-git-send-email-dh10.jung@samsung.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: e5fa8db0 ("usb: xhci: fix loss of data on Cadence xHC")
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent cfe314e9
Loading
Loading
Loading
Loading
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please to comment