USB: xhci - fix bit definitions for IMAN register
commit f8264340e694604863255cc0276491d17c402390 upstream.
According to XHCI specification (22.214.171.124) the IP is bit 0 and IE is bit 1
of IMAN register. Previously their definitions were reversed.
Even though there are no ill effects being observed from the swapped
definitions (because IMAN_IP is RW1C and in legacy PCI case we come in
with it already set to 1 so it was clearing itself even though we were
setting IMAN_IE instead of IMAN_IP), we should still correct the values.
This patch should be backported to kernels as old as 2.6.36, that
contain the commit 4e833c0b87a30798e67f06120cecebef6ee9644c "xhci: don't
re-enable IE constantly".
Signed-off-by: Dmitry Torokhov <firstname.lastname@example.org>
Signed-off-by: Sarah Sharp <email@example.com>
Signed-off-by: Ben Hutchings <firstname.lastname@example.org>
1 file changed