USB: xhci: Wait for host to start running.

Browse source

commit ed07453fd3 upstream.

When the run bit is set in the xHCI command register, it may take a few
microseconds for the host to start running.  We cannot ring any doorbells
until the host is actually running, so wait until the status register says
the host is running.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Shinya Saito <shinya.saito.sx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

...

This commit is contained in:

Sarah Sharp 2010-05-24 13:25:21 -07:00 • committed by Greg Kroah-Hartman

parent 280947b67d

commit cf86414c11

1 changed files with 32 additions and 7 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

39

drivers/usb/host/xhci.c

View file