Sarah Sharp e1f12eb6ba USB: Disable hub-initiated LPM for comms devices. ... Hub-initiated LPM is not good for USB communications devices. Comms devices should be able to tell when their link can go into a lower power state, because they know when an incoming transmission is finished. Ideally, these devices would slam their links into a lower power state, using the device-initiated LPM, after finishing the last packet of their data transfer. If we enable the idle timeouts for the parent hubs to enable hub-initiated LPM, we will get a lot of useless LPM packets on the bus as the devices reject LPM transitions when they're in the middle of receiving data. Worse, some devices might blindly accept the hub-initiated LPM and power down their radios while they're in the middle of receiving a transmission. The Intel Windows folks are disabling hub-initiated LPM for all USB communications devices under a xHCI USB 3.0 host. In order to keep the Linux behavior as close as possible to Windows, we need to do the same in Linux. Set the disable_hub_initiated_lpm flag for for all USB communications drivers. I know there aren't currently any USB 3.0 devices that implement these class specifications, but we should be ready if they do. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Hansjoerg Lipp <hjlipp@web.de> Cc: Tilman Schmidt <tilman@imap.cc> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Jan Dumon <j.dumon@option.com> Cc: Petko Manolov <petkan@users.sourceforge.net> Cc: Steve Glendinning <steve.glendinning@smsc.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Kalle Valo <kvalo@qca.qualcomm.com> Cc: "Luis R. Rodriguez" <mcgrof@qca.qualcomm.com> Cc: Jouni Malinen <jouni@qca.qualcomm.com> Cc: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Cc: Christian Lamparter <chunkeey@googlemail.com> Cc: Brett Rudley <brudley@broadcom.com> Cc: Roland Vossen <rvossen@broadcom.com> Cc: Arend van Spriel <arend@broadcom.com> Cc: "Franky (Zhenhui) Lin" <frankyl@broadcom.com> Cc: Kan Yan <kanyan@broadcom.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Cc: Ivo van Doorn <IvDoorn@gmail.com> Cc: Gertjan van Wingerde <gwingerde@gmail.com> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Cc: Herton Ronaldo Krzesinski <herton@canonical.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Chaoming Li <chaoming_li@realsil.com.cn> Cc: Daniel Drake <dsd@gentoo.org> Cc: Ulrich Kunitz <kune@deine-taler.de> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>		2012-05-18 15:42:55 -07:00
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amd7930_fn.c
amd7930_fn.h
arcofi.c
arcofi.h
asuscom.c
avm_a1.c
avm_a1p.c
avm_pci.c
avma1_cs.c
bkm_a4t.c
bkm_a8.c
bkm_ax.h
callc.c
config.c
diva.c
elsa_cs.c
elsa_ser.c
elsa.c
enternow_pci.c
fsm.c
fsm.h
gazel.c
hfc4s8s_l1.c
hfc4s8s_l1.h
hfc_2bds0.c
hfc_2bds0.h
hfc_2bs0.c
hfc_2bs0.h
hfc_pci.c
hfc_pci.h
hfc_sx.c
hfc_sx.h
hfc_usb.c
hfc_usb.h
hfcscard.c
hisax_cfg.h
hisax_debug.h
hisax_fcpcipnp.c
hisax_fcpcipnp.h
hisax_if.h
hisax_isac.c
hisax_isac.h
hisax.h
hscx_irq.c
hscx.c
hscx.h
icc.c
icc.h
ipac.h
ipacx.c
ipacx.h
isac.c
isac.h
isar.c
isar.h
isdnl1.c
isdnl1.h
isdnl2.c
isdnl2.h
isdnl3.c
isdnl3.h
isurf.c
ix1_micro.c
jade_irq.c
jade.c
jade.h
Kconfig
l3_1tr6.c
l3_1tr6.h
l3dss1.c
l3dss1.h
l3ni1.c
l3ni1.h
lmgr.c
Makefile
mic.c
netjet.c
netjet.h
niccy.c
nj_s.c
nj_u.c
q931.c
s0box.c
saphir.c
sedlbauer_cs.c
sedlbauer.c
sportster.c
st5481_b.c
st5481_d.c
st5481_init.c
st5481_usb.c
st5481.h
tei.c
teleint.c
teles0.c
teles3.c
teles_cs.c
telespci.c
w6692.c
w6692.h