]> git.itanic.dy.fi Git - linux-stable/commit
USB: UHCI: adjust zhaoxin UHCI controllers OverCurrent bit value
authorWeitao Wang <WeitaoWang-oc@zhaoxin.com>
Sun, 23 Apr 2023 10:59:52 +0000 (18:59 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 30 May 2023 11:57:53 +0000 (12:57 +0100)
commit66070f5b99954793fe1caa568ee3c0a0abccd6c1
tree3534b5e4f60ef0c5dd91dfa3cae194201a63dd56
parent0caed1faf5f68ad8c72230c21a12e17fc00ffd85
USB: UHCI: adjust zhaoxin UHCI controllers OverCurrent bit value

commit dddb342b5b9e482bb213aecc08cbdb201ea4f8da upstream.

OverCurrent condition is not standardized in the UHCI spec.
Zhaoxin UHCI controllers report OverCurrent bit active off.
In order to handle OverCurrent condition correctly, the uhci-hcd
driver needs to be told to expect the active-off behavior.

Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Weitao Wang <WeitaoWang-oc@zhaoxin.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20230423105952.4526-1-WeitaoWang-oc@zhaoxin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/uhci-pci.c